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Sample records for anastrepha fraterculus wiedemann

  1. The South American fruit fly, Anastrepha fraterculus (Wiedemann) in Brazil

    International Nuclear Information System (INIS)

    Anastrepha fraterculus, the South American fruit fly, is the most common and economically important pest for the fruit-bearing species in the Neotropical region. However, there are some species that are close to A. fraterculus and, sometimes they can be erroneously identified as A. fraterculus. The separation of A. fraterculus from A. obliqua, A. sororcula and A. zenildae, species closely related to South American fruit fly, is discussed. Also, information on the host plants and braconid parasitoids for A. fraterculus in Brazil is presented. (author)

  2. Behaviour of Anastrepha fraterculus

    International Nuclear Information System (INIS)

    A number of experiments and observations on the behaviour, host associations, attractants for adults and pupation of the South American fruit fly Anastrepha fraterculus (Wiedemann), conducted under field or semi-natural conditions are presented here. (author)

  3. Anastrepha fraterculus (Wiedemann) (Diptera: Tephritidae) in Tucuman, Argentina

    International Nuclear Information System (INIS)

    Full text: In 1916, Rust recorded Anastrepha fraterculus, the ''South American fruit fly (SAFF)'', in Tucuman. Since 1910, the citrus area in the province has increased rapidly and SAFF has become an important pest. New varieties and management practices were also introduced in the region. Guavas (Psidium guajava) and peaches (Prunus persica) were the main host fruits of SAFF in Tucuman, but cherimoya (Anona chirimoya) and apricots (Prunus armeniaca) were also important. After the beginning of rains, populations increase in spring and develop mainly on peaches in November and December. Afterwards, SAFF attacks guava, where a peak population is attained in February or March. Guava is the principal wild host of SAFF in Tucuman. Compared with the forest where guava trees were frequent, citrus orchards covered a small area in the 1920's. Therefore SAFF populations increased in the wild guavas and invaded early oranges and grapefruits afterwards. Even though high numbers of punctures were observed in citrus skin, few larvae developed. The oils present in the skin kill high number of eggs. Moreover the larvae have to go through the albedo and hardly reach the pulp. Nevertheless the injury produced by the ovipositor allows microorganisms to rot the fruit. In 1918, rots produced 50% of damage in fruits which suffered premature ripening and fell. Only in very thin skinned and overripened fruit, larval development was registered. Some authors observed larval development in the field but Schult, in laboratory tests, found few eggs and never registered larval development. Between 1920 and 1945 studies with bait-traps were carried out to establish the seasonal occurrence of the fly and some control measures were tested. Poisoned baits were used against this pest, and biological control by inoculation of parasitoids were also employed. Cages with parasitized pupae were distributed to farmers. The emerged flies were kept within the cage and a sieve allowed the emerged parasites

  4. Biology of Anastrepha fraterculus

    International Nuclear Information System (INIS)

    This paper presents available (published) information on specific abiotic factors, such as temperature, humidity, and lighting on the life cycle of Anastrepha fraterculus, henceforth AF. AF displays holometabolous development: egg, larva (development is completed in three instars), pupa and free living adults. (author)

  5. AVALIAÇÃO DE ATRATIVOS ALIMENTARES E ARMADILHAS PARA O MONITORAMENTO DE ANASTREPHA FRATERCULUS (WIEDEMANN, 1830 (DIPTERA: TEPHRITIDAE NA CULTURA DO PESSEGUEIRO (PRUNUS PERSICA (L. BATSH EVALUATION OF FOOD LURES AND TRAPS FOR MONITORING SOUTH AMERICAN FRUIT FLY ANASTREPHA FRATERCULUS (WIEDEMANN, 1830 (DIPTERA: TEPHRITIDAE IN PEACH (PRUNUS PERSICA (L. BATSH, ORCHARDS

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    Priscila Lang Scoz

    2006-08-01

    Full Text Available A mosca-das-frutas Anastrepha fraterculus é uma das principais pragas da cultura do pessegueiro (Prunus persica no sul do Brasil, podendo ocasionar perdas de até 100% da produção. Neste trabalho, foram avaliados atrativos alimentares e armadilhas para o monitoramento de A. fraterculus em pomares de pessegueiro na região da Serra Gaúcha, RS, principal pólo produtor da fruta para consumo “in natura” do Estado. Dois experimentos foram conduzidos para avaliar a captura de adultos de A. fraterculus com a levedura torula formulada em pastilha (2,5% e a proteína hidrolisada (Nolure® a 5% no primeiro experimento e a proteína hidrolisada (Bio Anastrepha® a 5% e o atrativo Anastrepha Lure® (putrecina associada ao sulfato de amônia, veiculado na forma de sachê no segundo. Nos dois experimentos foi utilizada a armadilha McPhail contendo suco de uva a 25% como atrativo padrão. A eficiência de armadilhas construídas a partir de garrafas PET (Polietileno Tereftalado de dois litros, transparente e verde, foi comparado com a armadilha-padrão McPhail, utilizando suco de uva a 25% como atrativo. A levedura torula (2,5% foi significativamente superior ao suco de uva a 25% e a proteína hidrolisada na captura de adultos de A. fraterculus, os quais equivaleram-se entre si. O Anastrepha lure® não foi eficaz na captura de adultos da espécie. Os modelos alternativos de armadilhas foram equivalentes ao modelo McPhail na captura de adultos de A. fraterculus.The South American Fruit Fly Anastrepha fraterculus (Wiedemann, 1830 (Diptera: Tephritidae is one of the most important peach pests (Prunus persica in Southern Brazil, causing damages of up to 100% of their total production. The objective of this study was to investigate the efficiency of food lures and traps for monitoring A. fraterculus in a commercial peach orchard. Two experiments were undertaken evaluating torula yeast (2,5% hydrolyzed protein (Nolure® at 5% and hydrolyzed protein (Bio

  6. Specific bibliography on Anastrepha fraterculus

    International Nuclear Information System (INIS)

    Most publications on Anastrepha fraterculus are in the literature sources from South America, and papers were published in Spanish or Portuguese. Many literature sources mentioned in this list are not indexed in entomological abstracts and, consequently, are not easily available outside their home state or country. Due to this fact, the inclusion of a list of specific bibliography on A. fraterculus could be a help for researchers and students interested in fruit flies. In this list are included only references directly dealing with Anastrepha fraterculus. Obviously, many more references exist that consider this species, but general or non-specific work or data concerning A. fraterculus were not included in the present list. (author)

  7. Taxonomic status of Anastrepha fraterculus

    International Nuclear Information System (INIS)

    There has long been speculation that nominal Anastrepha fraterculus comprises more than a single biological species. Herein is a review of data supporting the hypothesis that multiple cryptic species are present. Evidence includes unusual variation in pest status, morphology, karyotypes, isozymes, mitochondrial DNA and cuticular hydrocarbon. The data strongly support the notion of multiple cryptic species. However, it is not yet possible to state how many species may be involved or to delineate them by diagnostic morphology, distribution, host plants or behavior. A combination of methodologies will be needed to resolve the complex. (author)

  8. Lekking behavior of Anastrepha Fraterculus (Diptera: Tephritidae)

    International Nuclear Information System (INIS)

    Anastrepha fraterculus (Wiedemann) (Diptera: Tephritidae) displays a lek mating system. Males form groups in which they simultaneously display signals (acoustical, visual, or chemical) to attract females with the purpose of mating. Females visit the lek and choose among signaling and courting males to mate. Scarce information is available in A. fraterculus about the main factors involved in female choice and the behavior of displaying males. This information could be important within the context of pest control programs with a sterile insect technique (SIT) component, because departures from normal sexual behavior caused by artificial rearing could affect males' performance in the field. In this study we assessed A. fraterculus male behavior within the leks and analyzed the importance of behavioral and morphological traits on their copulatory success. The existence of preferred places for lek formation was evaluated in field cages with trees inside and analyzed by dividing the trees in sectors according to a 3-dimensional system. Males were individually weighed, marked, and observed every 15 min. Morphometric and behavioral characteristics of successful and unsuccessful males were compared. Most successful males grouped in a region of the tree characterized by the highest light intensity in the first 2 h of the morning. Results showed that pheromone calling activity is positively associated with copulatory success. Copulations were more frequent for males calling inside the lek, indicating that pheromone calling activity and presence in the lek are key factors for copulatory success. A positive association between copulatory success and eye length was found; some characteristics of the face were also associated with copula duration and latency. (author)

  9. Large scale artificial rearing of Anastrepha sp.1 aff. fraterculus (Diptera: Tephritidae) in Brazil

    OpenAIRE

    Julio Marcos Melges Walder; Renata Morelli; Karen Zamboni Costa; Kenya Martins Faggioni; Patrícia Alessandra Sanches; Beatriz Aguiar Jordão Paranhos; José Maurício Simões Bento; Maria de Lourdes Zamboni Costa

    2014-01-01

    Some species of the genus Anastrepha (Diptera: Tephritidae) are successfully managed by matching the sterile insect technique with parasitoid releases. Such strategies used in integrated pest management can be implemented only where insect mass-rearing programs are feasible. In this study, we show the process of domestication, rearing technology and quality control data obtained from 54 generations of Anastrepha sp.1 aff. fraterculus (Wiedemann, 1830) kept under fully artificial conditions. E...

  10. Flutuação populacional de Anastrepha fraterculus (Wiedemann, 1830 (Diptera, Tephritidae na Região Oeste de Santa Catarina, Brasil Population fluctuation of Anastrepha fraterculus (Wiedemann, 1830 (Diptera, Tephritidae in the Western Region of Santa Catarina State, Brazil

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    Flávio Roberto Mello Garcia

    2003-01-01

    Full Text Available Fruit flies are the major pests in fruit orchards and require a frequent insecticide aplication control, which increases production cost and chemical residues in fruits. Adults of Anastrepha fraterculus were sampled from twelve peach, plum, orange, tangerine and acid lime orchards in four counties in the Western Region of Santa Catarina. Modified McPhail plastic traps, baited with glucose 10%, were used to collect the flies from October 1998 to September 2000. Trap monitoring, bait replacement and fruit flies sorting by species and sex were done weekly. A total of 4,164 specimens of A. fraterculus was collected and highest population was registered in the county of Chapecó (64,8% of all sampled flies. Adults were collected all year long, with the highest population peaks occurring from December and January, although the fluctuation was different for each fruit species due to their particular phenology and in different years. Positive correlation among temperature, atmospheric humidity and population levels of adults of A. fraterculus was observed. According to the degree days obtained for each year, 4851.9, 4632.9 and 4983.7, respectively in 1998, 1999 and 2000, it was established that A. fraterculus could present an average of 11.2 generations a year.

  11. Male Courtship Behavior of the South American Fruit Fly, Anastrepha fraterculus, from an Argentinean Laboratory Strain

    OpenAIRE

    Gomez Cendra, P.; Calcagno, G; Belluscio, L; Vilardi, J.C.

    2011-01-01

    The South American fruit fly Anastrepha fraterculus (Wiedemann) (Diptera: Tephritidae) is a pest of fruit species of warm regions of the Americas, including Argentina. Some authors claim that this taxon includes a group of cryptic species. In order to evaluate possible targets of sexual selection, it is necessary to analyze ethological aspects of male courtship and identify particular steps that strongly influence mating success. A mating test designed to evaluate behavioral differences betwe...

  12. Native and introduced host plants of Anastrepha fraterculus and Ceratitis capitata (Diptera: Tephritidae) in northwestern Argentina.

    Science.gov (United States)

    Ovruski, Sergio; Schliserman, Pablo; Aluja, Martín

    2003-08-01

    Wild or commercially grown, native and exotic fruit were collected in 30 localities in the Tucumán province (NW Argentina) from January 1990 to December 1995 to determine their status as hosts of Anastrepha fraterculus (Wiedemann) and/or Ceratitis capitata (Wiedemann), the only two fruit fly species of economic and quarantine importance in Argentina. A total of 84,094 fruit (3,466.1 kg) representing 33 species (7 native and 26 exotic) in 15 plant families were sampled. We determined the following 17 host plant associations: Annona cherimola Miller (Annonaceae), Citrus paradisi Macfadyn (Rutaceae), Diospyros kaki L. (Ebenaceae), Eugenia uniflora L., Psidium guajava L., Myrcianthes pungens (Berg) Legrand (Myrtaceae), Ficus carica L. (Moraceae), Juglans australis Grisebach (Juglandaceae), Mangifera indica L. (Anacardiaceae), Eriobotrya japonica (Thunb.) Lindl., Prunus armeniaca L., P. domestica L., and P. persica (L.) Batsch (Rosaceae) were infested by both A. fraterculus and C. capitata. Citrus aurantium L., Citrus reticulata Blanco, Citrus sinensis (L.) Osbeck (Rutaceae), and Passiflora caerulea L. (Passifloraceae) were only infested by Ceratitis capitata. Out of a total of 99,627 adults that emerged from pupae, 69,180 (approximately 69.5%) were Anastrepha fraterculus, 30,138 (approximately 30.2%) were C. capitata, and 309 (approximately 0.3%) were an unidentified Anastrepha species. Anastrepha fraterculus predominated in native plant species while C. capitata did so in introduced species. Infestation rates (number of larvae/kg of fruit) varied sharply from year to year and between host plant species (overall there was a significant negative correlation between fruit size and infestation level). We provide information on fruiting phenology of all the reported hosts and discuss our findings in light of their practical (e.g., management of A. fraterculus and C. capitata in citrus groves) implications. PMID:14503581

  13. Enhancing mating performance after juvenile hormone treatment in Anastrepha fraterculus (Diptera:Tephritidae): a differential response in males and females acts as a physiological sexing system

    Science.gov (United States)

    Methoprene treatment can reduce the time required for sexual maturation in Anastrepha fraterculus (Diptera: Tephritidae) (Wiedemann) males under laboratory conditions, supporting its use as a treatment for sterile males within the context of the Sterile Insect Technique (SIT). Here we evaluated sexu...

  14. Nuclear ribosomal internal transcribed spacer 1 (ITS1) variation in the Anastrepha fraterculus cryptic species complex (Diptera, Tephritidae) of the Andean region

    Science.gov (United States)

    The nuclear ribosomal internal transcribed spacer 1 (ITS1) was sequenced for Anastrepha fraterculus (Wiedemann, 1830) originating from 85 collections from the northern and central Andean countries of South America including Argentina (Tucumán), Bolivia, Perú, Ecuador, Colombia, and Venezuela. The IT...

  15. Breeding technique of Anastrepha fraterculus (Wied.) for genetic studies

    International Nuclear Information System (INIS)

    Various samples of Anastrepha fraterculus from different areas in Argentina were obtained to develop artificial breeding in the laboratory. Based on a modification of Salles's method, an improved artificial rearing of the species was developed with satisfactory results for genetic analysis. The advances made will contribute towards the search for genetic mechanisms for control. (author)

  16. Genetics and biology of Anastrepha fraterculus: research supporting the use of the sterile insect technique (SIT) to control this pest in Argentina

    OpenAIRE

    Cladera, Jorge L.; Vilardi, Juan C.; Juri, Marianela; Paulin, Laura E; Giardini, M Cecilia; Gómez Cendra, Paula V; Segura, Diego F.; Lanzavecchia, Silvia B

    2014-01-01

    Two species of true fruit flies (taxonomic family Tephritidae) are considered pests of fruit and vegetable production in Argentina: the cosmopolitan Mediterranean fruit fly (Ceratitis capitata Wiedemann) and the new world South American fruit fly (Anastrepha fraterculus Wiedemann). The distribution of these two species in Argentina overlaps north of the capital, Buenos Aires. Regarding the control of these two pests, the varied geographical fruit producing regions in Argentina are in differen...

  17. Large scale artificial rearing of Anastrepha sp.1 aff. fraterculus (Diptera: Tephritidae in Brazil

    Directory of Open Access Journals (Sweden)

    Julio Marcos Melges Walder

    2014-08-01

    Full Text Available Some species of the genus Anastrepha (Diptera: Tephritidae are successfully managed by matching the sterile insect technique with parasitoid releases. Such strategies used in integrated pest management can be implemented only where insect mass-rearing programs are feasible. In this study, we show the process of domestication, rearing technology and quality control data obtained from 54 generations of Anastrepha sp.1 aff. fraterculus (Wiedemann, 1830 kept under fully artificial conditions. Eggs were collected by an artificial oviposition panel consisting of one side of the cage made of blue voile fabric externally covered with a thin layer of silicon rubber. They were then air-bubbled in water at 25 ºC for 48 h before seeding. Larvae were reared on the regular laboratory artificial diet with 66 % of agar reduction turning over a semi-liquid diet, which reduced costs and improved insect quality. The adult and larval diets were composed of local ingredients including hydrolyzed yeast. When large-scale production of this fly is contemplated, the critical stage is larval development. This system of artificial rearing for A. fraterculus sp.1 developed in Brazil, allows for the production of a large number of insects of excellent quality using local ingredients and less agar in diet composition than the original medium used for this species. By reducing the interval of egg collection, the system might be optimized in terms of insect yield and, therefore, meet the demands of A. fraterculus sp.1 with regard to integrated pest management purposes.

  18. Update of host plant list of Anastrepha fraterculus and Ceratitis capitata in Argentina

    International Nuclear Information System (INIS)

    The study displays a complete picture of the host range of the two economically important fruit fly species in Argentina, the native Anastrepha fraterculus (Wiedemann) (South American Fruit Fly) and the exotic Ceratitis capitata (Wiedemann) (Mediterranean Fruit Fly or Medfly). This work provides information on the fruit type of each plant species, associated tephritid species, habitat where the fruit was collected, geographical location of each fruit collection area (latitude, longitude, and altitude), phyto geographic regions where each area is located, as well as a general description of the landscape characteristics of those habitats where the fruit samples with fly larvae were collected. A complete, detailed bibliographic review was made in order to provide all the relevant information needed for host use in natural setting. (author)

  19. Update of host plant list of Anastrepha fraterculus and Ceratitis capitata in Argentina

    Energy Technology Data Exchange (ETDEWEB)

    Orono, Luis E.; Albornoz-Medina, Patricia; Nunez-Campero, Segundo; Nieuwenhove, Guido A. van; Bezdjian, Laura P.; Martin, Cristina B.; Schliserman, Pablo; Ovruski, Sergio M. [Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET), Tucuman (Argentina). Planta Piloto de Procesos Industriales Microbiologicos y Biotecnologia. Div. Control Biologico de Plagas

    2006-07-01

    The study displays a complete picture of the host range of the two economically important fruit fly species in Argentina, the native Anastrepha fraterculus (Wiedemann) (South American Fruit Fly) and the exotic Ceratitis capitata (Wiedemann) (Mediterranean Fruit Fly or Medfly). This work provides information on the fruit type of each plant species, associated tephritid species, habitat where the fruit was collected, geographical location of each fruit collection area (latitude, longitude, and altitude), phyto geographic regions where each area is located, as well as a general description of the landscape characteristics of those habitats where the fruit samples with fly larvae were collected. A complete, detailed bibliographic review was made in order to provide all the relevant information needed for host use in natural setting. (author)

  20. The influence of prior experience with artificial fruits on the ovipositioning behavior of Anastrepha fraterculus (Diptera, Tephritidae

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    Patrícia L. F. Gregório

    2012-06-01

    Full Text Available The South American fruit fly, Anastrepha fraterculus (Wiedemann, 1830 (Diptera, Tephritidae, is a leading pest of Brazilian fruit crops. This study evaluated how prior experience with artificial fruits containing peach and/or guabiroba pulp influenced the ovipositing behavior of A. fraterculus. Insects 15-21 days old were exposed to four treatments: 1 experience with guabiroba, Campomanesia xanthocarpa O. Berg (Myrtaceae; 2 experience with peach, Prunus persica (L. Batsch (Chimarrita cultivar; Rosaceae; 3 experience with both fruits; and 4 no experience (naive. Naive females and females experienced with guabiroba pulp and with both fruits (peach and guabiroba oviposited and showed dragging and puncturing behavior on substrates containing guabiroba, but females that were only exposed to peach pulp did not show a preference for any substrate. The study shows that prior experience with substrate influences ovipositing behavior in A. fraterculus.

  1. Fungi that cause rot in bunches of grape identified in adult fruit flies (Anastrepha fraterculus (Diptera: Tephritidae

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    Ruben Machota Jr

    2013-06-01

    Full Text Available Anastrepha fraterculus (Wiedemann is the main species of frugivorous insect that damages berries of table grape (Vitis vinifera L. in Southern Brazil. This study was conducted to isolate and identify the fungi associated with bunch rot present in the body of adults of A. fraterculus collected in a commercial vineyard. From January to February 2011, adults of A. fraterculus were collected from a commercial vineyard of green grapes using adapted McPhail traps. In laboratory, flies bodies were divided into four parts (head, legs, wings, and ovipositor in Petri dishes with PDA medium to evaluate microorganisms associated. Six adult females of A. fraterculus collected in the field were also analyzed in a scanning electron microscope (SEM to identify spores of fungi. Phytopathogenic microorganisms were found in all sectioned parts. Fungal spores were recorded adhered to the body of adult females of A. fraterculus. The main species of fungi found in the body parts of A. fraterculus were Cladosporium spp. (20.2% of the obtained colonies, Botrytis cinerea Pers. (12.9%, Colletotrichum spp. (10.1%, Penicillium spp. (10.1%, Fusarium spp. (7.7%, followed by Rhizopus spp., Trichoderma spp. and Aspergillus spp., suggesting that the insect can serve as a mechanical vector of spores increasing damage in the vineyards.

  2. Demographic and quality control parameters of Anastrepha Fraterculus (Diptera: Tephritidae) maintained under artificial rearing

    International Nuclear Information System (INIS)

    The integration of the sterile insect technique (SIT) in the management of the South American fruit fly Anastrepha fraterculus (Wiedemann) (Diptera: Tephritidae) is a promising alternative to chemically-based control in those areas where it is sympatric with Ceratitis capitata (Wiedemann) (Diptera: Tephritidae) or other tephritid species for which the SIT is being used. Implementation of the SIT requires the development of a cost effective mass-rearing protocol. In this work, we present demographic and quality control parameters for the A. fraterculus strain reared at the Estacion Experimental Agroindustrial Obispo Colombres, Tucuman, Argentina. Considering the rearing cage as the reproduction unit, we observed that fecundity is optimal during the first 3 weeks after the onset of oviposition. Fertility was constant during this period. During 2003 and 2004, some improvements were made to the existing rearing protocol, which resulted in increased larval viability, pupal weight, and adult emergence. Current weekly egg production is 1 million per week. These eggs are used to maintain the colony and to assess quality parameters. Finally, research needs leading to improved yields and fly quality are discussed. (author)

  3. Nuclear ribosomal internal transcribed spacer 1 (ITS1) variation in the Anastrepha fraterculus cryptic species complex (Diptera, Tephritidae) of the Andean region

    OpenAIRE

    Sutton, Bruce D.; Steck, Gary J.; Norrbom, Allen L.; Rodriguez, Erick J.; Srivastava,Pratibha; Alvarado, Norma Nolazco; Colque,Fredy; Landa, Erick Yábar; Sánchez, Juan José Lagrava; Quisberth, Elizabeth; Peñaranda, Emilio Arévalo; Clavijo,P.A. Rodriguez; Alvarez-Baca, Jeniffer K.; Zapata, Tito Guevara; Ponce, Patricio

    2015-01-01

    Abstract The nuclear ribosomal internal transcribed spacer 1 (ITS1) was sequenced for Anastrepha fraterculus (Wiedemann, 1830) originating from 85 collections from the northern and central Andean countries of South America including Argentina (Tucumán), Bolivia, Perú, Ecuador, Colombia, and Venezuela. The ITS1 regions of additional specimens (17 collections) from Central America (México, Guatemala, Costa Rica, and Panamá), Brazil, Caribbean Colombia, and coastal Venezuela were sequenced and t...

  4. Comparison of longevity between a laboratory strain and a natural population of Anastrepha Fraterculus (Diptera: Tephritidae) under field cage conditions

    International Nuclear Information System (INIS)

    The South American fruit fly Anastrepha fraterculus (Wiedemann) is one of the most destructive fruit pests in this region, infesting major fruit crops. Implementation of the sterile insect technique (SIT) as part of an area-wide integrated approach against this species requires information on the survival of mass-reared and sterilized insects in the field and their ability to mate with wild females. The survival rates in field cages of both non-irradiated and irradiated laboratory flies were compared with that of wild flies. Both types of laboratory flies survived longer than their wild counterparts over the 8 days under the experimental conditions. The irradiation dose (70 Gy) did not affect survival of the laboratory reared flies. Our results improve the prospect of integrating the SIT into the control of A. fraterculus populations in Argentina. (author)

  5. Notes on the present situation of Anastrepha fraterculus in Argentina

    International Nuclear Information System (INIS)

    Behavioural and karyotypical results from Anastrepha fraterculus samples received in our laboratory during the period 92-94 are discussed. The work represents the partial situation of this pest in Argentina. Data from guava fruits indicate 1) that the oviposition behaviour does not agree with the autocontrol mechanism via ODP previously described, 2) that a selection mechanism associated to fruit size and quality exists, allowing the female to choose the oviposition site, 3) if different varieties of fruits are available, then the fly shows preference for one of them. The oviposition behaviour in samples of peaches is different from that observed on guava samples and agrees with the ODP mechanism. In some localities, A. fraterculus and C. capitata share the same substrate or fruit (same unit). Samples from commercial oranges do not show evidence of Anastrepha attack. A more frequent karyotype fArg 1 (wild type karyotype) as well as high karyotypic variation, mainly measured through the polymorphism of sexual chromosomes, are present within different geographic populations sharing the same host species. To date, we do not have enough information to associate a particular behaviour to a karyotype. The chromosomal analysis is merely descriptive. (author)

  6. Methoprene treatment reduces the pre-copulatory period in Anastrepha fraterculus (Diptera: Tephritidae) sterile males

    Science.gov (United States)

    Anastrepha fraterculus is a major fruit pest in South America. Ongoing studies encourage the implementation of the sterile insect technique (SIT) against this pest. Sexual readiness of sterile males is a key point for SIT. The time required for A. fraterculus males to become sexually mature is unkn...

  7. Nuclear ribosomal internal transcribed spacer 1 (ITS1) variation in the Anastrepha fraterculus cryptic species complex (Diptera, Tephritidae) of the Andean region

    Science.gov (United States)

    Sutton, Bruce D.; Steck, Gary J.; Norrbom, Allen L.; Rodriguez, Erick J.; Srivastava, Pratibha; Alvarado, Norma Nolazco; Colque, Fredy; Landa, Erick Yábar; Sánchez, Juan José Lagrava; Quisberth, Elizabeth; Peñaranda, Emilio Arévalo; Clavijo, P. A. Rodriguez; Alvarez-Baca, Jeniffer K.; Zapata, Tito Guevara; Ponce, Patricio

    2015-01-01

    Abstract The nuclear ribosomal internal transcribed spacer 1 (ITS1) was sequenced for Anastrepha fraterculus (Wiedemann, 1830) originating from 85 collections from the northern and central Andean countries of South America including Argentina (Tucumán), Bolivia, Perú, Ecuador, Colombia, and Venezuela. The ITS1 regions of additional specimens (17 collections) from Central America (México, Guatemala, Costa Rica, and Panamá), Brazil, Caribbean Colombia, and coastal Venezuela were sequenced and together with published sequences (Paraguay) provided context for interpretation. A total of six ITS1 sequence variants were recognized in the Andean region comprising four groups. Type I predominates in the southernmost range of Anastrepha fraterculus. Type II predominates in its northernmost range. In the central and northern Andes, the geographic distributions overlap and interdigitate with a strong elevational effect. A discussion of relationships between observed ITS1 types and morphometric types is included. PMID:26798259

  8. Genetics and biology of Anastrepha fraterculus: research supporting the use of the sterile insect technique (SIT) to control this pest in Argentina.

    Science.gov (United States)

    Cladera, Jorge L; Vilardi, Juan C; Juri, Marianela; Paulin, Laura E; Giardini, M Cecilia; Gómez Cendra, Paula V; Segura, Diego F; Lanzavecchia, Silvia B

    2014-01-01

    Two species of true fruit flies (taxonomic family Tephritidae) are considered pests of fruit and vegetable production in Argentina: the cosmopolitan Mediterranean fruit fly (Ceratitis capitata Wiedemann) and the new world South American fruit fly (Anastrepha fraterculus Wiedemann). The distribution of these two species in Argentina overlaps north of the capital, Buenos Aires. Regarding the control of these two pests, the varied geographical fruit producing regions in Argentina are in different fly control situations. One part is under a programme using the sterile insect technique (SIT) for the eradication of C. capitata, because A. fraterculus is not present in this area. The application of the SIT to control C. capitata north of the present line with the possibility of A. fraterculus occupying the niche left vacant by C. capitata becomes a cause of much concern. Only initial steps have been taken to investigate the genetics and biology of A. fraterculus. Consequently, only fragmentary information has been recorded in the literature regarding the use of SIT to control this species. For these reasons, the research to develop a SIT protocol to control A. fraterculus is greatly needed. In recent years, research groups have been building a network in Argentina in order to address particular aspects of the development of the SIT for Anastrepha fraterculus. The problems being addressed by these groups include improvement of artificial diets, facilitation of insect mass rearing, radiation doses and conditions for insect sterilisation, basic knowledge supporting the development of males-only strains, reduction of male maturation time to facilitate releases, identification and isolation of chemical communication signals, and a good deal of population genetic studies. This paper is the product of a concerted effort to gather all this knowledge scattered in numerous and often hard-to-access reports and papers and summarize their basic conclusions in a single publication

  9. Flutuação populacional de adultos de Anastrepha fraterculus (Wied. em cultivo protegido e convencional de videira Anastrepha fraterculus (Wied. adult seasonal fluctuation in plastic covering and conventional grapevine cultivation

    Directory of Open Access Journals (Sweden)

    Geraldo Chavarria

    2009-09-01

    Full Text Available A mosca-das-frutas sul-americana, Anastrepha fraterculus (Wiedemann, 1830 (Diptera: Tephritidae, é considerada praga-chave das fruteiras de clima temperado na região Sul do Brasil. No entanto, poucas informações encontram-se disponíveis quando a espécie está associada à cultura da videira. Neste trabalho, foi avaliado o efeito da cobertura plástica sobre a população de adultos de A. fraterculus durante o ciclo de cultivo da videira cv. Moscato Giallo. O experimento foi conduzido nos ciclos de 2005/06 e 2006/07, em vinhedo comercial localizado em Flores da Cunha-RS (latitude 29° 06' sul, longitude 51° 20' oeste e altitude de 541 m, coberto com plástico impermeável tipo ráfia (160 µm de 12 fileiras com 35 m, deixando-se cinco fileiras sem cobertura (controle. Os adultos foram monitorados nas duas áreas com armadilhas McPhail, utilizando-se como atrativo de proteína hidrolisada (BioAnastrepha® a 5%, no período de outubro a abril, nos dois ciclos. O pico populacional da espécie, nos dois ciclos, foi observado no período de maturação da uva. Não foram registradas diferenças significativas nas capturas entre as áreas, concluindo-se que a cobertura plástica não afeta a mobilidade e a flutuação populacional de A. fraterculus em cultivo protegido de videira.The South American Fruit Fly Anastrepha fraterculus (Wiedemann, 1830 (Diptera: Tephritidae is one of the most important pests of temperate fruits in Southern Brazil. Little information regarded to pest damage is available when this insect is associated with vineyards. In this work was evaluated the plastic cover effect on seasonal fluctuation of A. fraterculus adults in vineyards of cv. Moscato Giallo. The experiment was conducted on 2005/06 and 2006/07 seasons in a vineyard located in Flores da Cunha, RS (latitude 29° 06' South, longitude 51° 20' West and altitude 541 m, covered with an impermeable plastic cloth (2.65 m x 160 µm, in 12 rows with 35 m, with five rows

  10. Current status and perspectives for management of Anastrepha fraterculus (Wied.) in apple orchards in Brazil

    International Nuclear Information System (INIS)

    Pomiculture is a recent activity in southern Brazil. The first apple orchards were installed in the early 1970s. Recently, the area grown with apples exceeded 30,000 ha, concentrated in the regions of Fraiburgo and Sao Joaquim (state of Santa Catarina) and Vacaria and Bom Jesus (state of Rio Grande do Sul). Part of the 600,000 tons that are harvested every year is exported to the USA and European countries. Some exotic apple pests were unintentionally introduced, like the European red mite (Panonychuls ulmi Koch) and the Oriental fruit moth (Grapholita molesta Busck). Furthermore, some native species of insects became important pests, as in the South American apple leafroller (Bonagota cranaodes Meyrick) and the South American fruit fly (Anastrepha fraterculus Wiedemann). The South American fruit fly is the best-studied pest of apples in Brazil regarding its biology and ecology. In this paper, we synthesise the information available and discuss the feasibility of adopting new control methods. Most experiments were conducted in Vacaria where A. fraterculus populations reach levels as high as 150 flies/trap day in some years. Sixteen species of Anastrepha occur in the region of Vacaria and only A. fraterculus is considered economically important (Kovaleski et al., submitted). In addition to the typical morphology of A. fraterculus, the morphotype CSS (Selivon et al. 1996) was detected in McPhail traps and infested native fruits. The second most frequent species of Anastrepha is A. dissimilis Stone. It may be responsible for more than 20% of fruit flies in commercial apple orchards in some periods of the year (November-January) but does not attack apples (Kovaleski 1997). Adult population fluctuation has been studied for the last four years using plastic McPhail traps containing grape juice at 25% (v/v) as attractant. It is more efficient than corn protein hydrolysate, vinegar, and sugarcane molasses (Kovaleski et al. 1995) and is widely used by apple growers as the

  11. Morphological characterization of the reproductive system of irradiated Anastrepha fraterculus

    Energy Technology Data Exchange (ETDEWEB)

    Bartolucci, Andrea, E-mail: andreabartolucci@iscamen.com.a [Instituto de Sanidad y Calidad Agropecuaria de Mendoza (ISCAMEN), Mendoza (Argentina); Vera, M. Teresa [Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET), (Argentina); Yusef, Veronica [Comision Nacional de Energia Atomica (Argentina). Centro Atomico Ezeiza; Oviedo, Andrea [Estacion Experimental Agroindustrial Obispo Colombres (EEAOC), Tucuman (Argentina)

    2006-07-01

    Field identification of released sterile insects is a major issue for eradication and suppression programs. Irradiated flies are normally identified by the presence of a fluorescent dye. When a fly lacks fluorescent dye, determination of gonadal state is necessary to identified between sterile or fertile flies. This is particularly relevant when population levels have decreased. Animal and identification is required to be as unequivocal as possible. Here we describe the reproductive system of irradiated Anastrepha fraterculus of different ages and we compare it with that of fertile flies in order to provide a diagnosis tool. Fertile and irradiated A. fraterculus were dissected from the day of emergence and until 15 days of age. Gross morphology was described and the gonads were measured. Germ cells were visualized in the testis. The reproductive systems of both males and females contained the same structures as other Anastrepha species. From day 1 to day 3, there were no detectable differences between irradiated and fertile males. The growing region encompassed half the testis total length and there was no free sperm in the seminal vesicle. On day 4 the presence of free sperm was seen in the seminal vesicle. At this stage irradiated males started differentiating from fertile ones: the growing region reduced in size and totally disappeared by day 11; sperm bundle zones occupied most of the testis; spermatids lost their triangular shape and sperm remained in the seminal vesicle without moving into the apical region. Testis length and width of irradiated males did not differ from fertile males. In females, the maturation of the ovaries involved a change in size that was more pronounced in the length of the ovary. This became noticeable at day 3. At this stage, the formation of yolk and the basal follicle began in fertile females and the oocyte had the same size as the trophocytes. From this point, the oocyte started growing. After day 8, the maturing oocyte reached

  12. Sexual selection on multivariate phenotypes in Anastrepha Fraterculus (Diptera: Tephritidae) from Argentina

    International Nuclear Information System (INIS)

    Despite the interest in applying environmentally friendly control methods such as sterile insect technique (SIT) against Anastrepha fraterculus (Wiedemann) (Diptera: Tephritidae), information about its biology, taxonomy, and behavior is still insufficient. To increase this information, the present study aims to evaluate the performance of wild flies under field cage conditions through the study of sexual competitiveness among males (sexual selection). A wild population from Horco Molle, Tucuman, Argentina was sampled. Mature virgin males and females were released into outdoor field cages to compete for mating. Morphometric analyses were applied to determine the relationship between the multivariate phenotype and copulatory success. Successful and unsuccessful males were measured for 8 traits: head width (HW), face width (FW), eye length (EL), thorax length (THL), wing length (WL), wing width (WW), femur length (FL), and tibia length (TIL). Combinations of different multivariate statistical methods and graphical analyses were used to evaluate sexual selection on male phenotype. The results indicated that wing width and thorax length would be the most probable targets of sexual selection. They describe a non-linear association between expected fitness and each of these 2 traits. This non-linear relation suggests that observed selection could maintain the diversity related to body size. (author)

  13. Induction of sterility in Anastrepha Fraterculus (Diptera: Tephritidae) by gamma radiation

    International Nuclear Information System (INIS)

    In relation to the application of the sterile insect technique (SIT) for the South American fruit fly Anastrepha fraterculus (Wiedemann), we analyzed the effect on adult fertility of different doses of gamma irradiation and the age of pupae at the time of irradiation. In a first experiment, we applied doses of 50, 70, and 90 Gy to pupae at 24, 48, 72, and 96 h before adult emergence. In a second experiment we irradiated pupae 48 h before emergence with 20, 40, and 60 Gy and estimated male and female fertility and sperm transfer by irradiated males. The results indicated pupal age at irradiation does not significantly affect male fertility. If males irradiated with 60 Gy are crossed to non-irradiated females the fertility is about 1%. Females irradiated with 40 Gy did not lay eggs independently of the male to which they mated. No significant effects of radiation were observed with respect to the ability of males to transfer sperm. A dose of 70 Gy applied 48 h before adult emergence induces 100% sterility in both males and females. (author)

  14. Karyotype study of the South American fruit fly, Anastrepha fraterculus (Wied.) in Argentina

    International Nuclear Information System (INIS)

    The most frequent karyotype of Anastrepha fraterculus in Argentina is described here on the basis of mitotic metaphase morphology. It was named ''fraterculus Arg 1''. The diploid number is 2n=10+XX/XY and in males it comprises five homomorphic pairs and one heteomorphic pair, the latter being the sexual pair. Samples from different populations were cytologically analyzed, and ''fraterculus Arg 1'' is present in all of them at a high frequency (about 60%). A typical C band pattern of the X chromosome was found only in the Montecarlo (Misiones province) population. (author)

  15. New insights in the definition of the Anastrepha fraterculus cryptic species complex

    Czech Academy of Sciences Publication Activity Database

    Vera, T.; Abraham, S.; Břízová, Radka; Cáceres-Barrios, C.; Canal, N.; Castaneda, R.; Nascimento, R.; Silva, J.; Hendrichs, J.; Hernández-Ortiz, V.; Joachim-Bravo, I.; Kalinová, Blanka; Lima, K.; Malacrida, A.; Roriz, K.; Rull, J.; Segura, D.; Steck, G.; Teal, P.; Vaníčková, L.; Vreysen, M.

    Bangkok: Siam Print, 2014 - (Malavasi, A.; Cardoso-Pereira, R.; Orankanok, W.). s. 44 ISBN 978-616-358-012-2. [ISFFEI 2014. International Symposium on Fruit Flies of Economic Importance /9./. 12.05.2014-16.05.2014, Bangkok] Institutional support: RVO:61388963 Keywords : Anastrepha fraterculus * cryptic species * integrative taxonomy Subject RIV: CC - Organic Chemistry

  16. Compatibility and competitiveness of a laboratory strain of Anastrepha Fraterculus (Diptera: Tephritidae) after irradiation treatment

    International Nuclear Information System (INIS)

    We evaluated under semi-natural field cage conditions sexual compatibility and competitiveness of a laboratory strain (LAB) compared to a wild population (TUC) of Anastrepha fraterculus (Wiedemann). The LAB strain is produced under semi-mass rearing conditions at the Estacion Experimental Agroindustrial Obispo Colombres facility (Tucuman, Argentina). Wild flies were obtained at Horco Molle (Tucuman, Argentina) from infested guava fruits. LAB pupae were irradiated (60Co) 48 h before adult emergence. The tested doses were 0 (control), 40, 70, and 100 Gy. Twenty-five males and 25 females each of TUC and LAB were released into cages and mating pairs collected. Only 1 irradiation dose was considered at a time. Females were separated and allowed to lay eggs into artificial fruits to estimate induced sterility from the corresponding hatching rate. Copulation start time did not differ significantly between strains nor among irradiation treatments. Copulation duration showed highly significant differences among irradiation doses, but no differences between strains. The index of sexual isolation (ISI) and the relative sterility index (RSI) indices indicated that LAB and TUC are fully compatible, males from TUC and LAB did not differ in mating competitiveness, and irradiation within the range tested did not affect these indices. Non-irradiated LAB females exhibited higher mating propensity than TUC ones. However, a significant reduction in the female relative performance index (FRPI) index was observed with increasing irradiation dose. The analysis of induced sterility indicated that treatment with 40 Gy reduces male fertility from about 80% to 0.75%, and higher doses produce total sterility. In females, the 40 Gy dose reduces fertility to about 2% and higher doses prevent egg laying. (author)

  17. Controle químico de Anastrepha fraterculus (Wied. (Diptera: Tephritidae em laboratório Chemical control of Anastrepha fraterculus (Wied. (Diptera: Tephritidae in laboratory

    Directory of Open Access Journals (Sweden)

    Priscila Lang Scoz

    2004-12-01

    Full Text Available O efeito de quatro novos grupos químicos de inseticidas incluindo avermectina (benzoato de emamectina, éter piretróide (etofemprox, neoniconitnóide (imidacloprid, thiacloprid e thiamethoxan e naturalyte (spinosad foram avaliados em laboratório (25 ± 3ºC, umidade relativa de 70 ± 10% e fotofase de 12 horas, visando ao controle de adultos e ovos/larvas de Anastrepha fraterculus comparando-os com os fosforados fenthion e thrichlorphon. O benzoato de emamectina não foi eficiente no controle de adultos de A. fraterculus via contato e ingestão. O etofenprox, imidacloprid, spinosad e thiamethoxan foram eficientes no controle de adultos de A. fraterculus via contato e ingestão, proporcionando maior mortalidade via ingestão. Os novos inseticidas não provocaram mortalidade significativa de ovos/larvas de A. fraterculus localizados no interior de maçãs, enquanto que os fosforados fenthion e thrichlorphon resultaram em 100% de mortalidade das fases imaturas e adultos. Os novos inseticidas apresentam potencial para uso nas iscas tóxicas, substituindo os fosforados para o controle de adultos.The South American Fruit Fly, Anastrepha fraterculus is one of the most important pest of temperate fruit crops. The effect of four new inseticide groups to replace organophosphate compounds for A. fraterculus control was evaluated under laboratory conditions (25 ± 3ºC, relative humity of 70 ± 10% and 12:12 L:D. Emamectin benzoate, etofenprox, imidacloprid, spinosad, thiacloprid and thiamethoxan were evaluated to control adults by contact and ingestion and against eggs/larvae inside apple fruits compared with fenthion and thrichlorphon. Emamectin benzoate was not efficient to control adults of A. fraterculus by contact and ingestion. Etofenprox, imidacloprid, spinosad and thiamethoxan were efficient to control adults by contact and ingestion being more toxic by ingestion. No new insecticide controlled eggs/larvae inside apple fruit while organophosphate

  18. Development of a larval diet for the South American fruit fly Anastrepha fraterculus (Diptera:Tephritidae)

    Science.gov (United States)

    Mass-rearing protocols must be developed. In particular, a cost-effective larval diet, to implement the sterile insect technique against Anastrepha fratercculus (Wiedemann). The key elements of this diet are the optimal nutrients and their concentrations, diet supports or bulking agents, and the pH ...

  19. Use of gamma radiation against Ceratitis capitata (Wied., 1824), Anastrepha Fraterculus (Wied., 1830) and Anastrepha Obliqua (Macquart, 1835) (Diptera, Tephritidae) for disinfestation of mangoes for exportation

    International Nuclear Information System (INIS)

    The gamma radiation doses to attend quarantine requirements of importing countries, by disinfecting mango fruits from Ceratitis capitata (Wied., 1824), Anastrepha Fraterculus (Wied., 1830) and Anastrepha Obliqua (Macquart, 1835) is studied. An increase of radiation resistance of C. capitata eggs was observed during the embryonic development. Doses up to 40 Gy for C. capitata and up to 100 Gy for A. Fraterculus and A. Obliqua did not affect pupation of 4-,5-,6- and 7-day-old larvae, irradiated 'in vitro'. Larvae of C. capitata were more resistant than A. Obliqua and A. Fraterculus. Larvae of A. Obliqua were more resistant than A. Fraterculus. The dose of 125.5 Gy fulfilled the criteria for efficacy, which prevented emergence of the adults of three fruit fly species studied. (author)

  20. Percepção química e visual de Anastrepha fraterculus (Diptera, Tephritidae em laboratório Chemical and visual perception of Anastrepha fraterculus (Diptera, Tephritidae in laboratory

    Directory of Open Access Journals (Sweden)

    Patrícia L. F. Gregorio

    2010-06-01

    Full Text Available A mosca-das-frutas-sul-americana, Anastrepha fraterculus (Wiedemann, 1830, é uma das principais pragas da fruticultura no Brasil. Durante a alimentação, as larvas fazem galerias nos frutos, alterando o sabor e prejudicando a produção e comercialização dos mesmos. O presente trabalho teve como objetivo estudar fatores envolvidos na escolha do hospedeiro por A. fraterculus. Foram avaliadas as respostas eletroantenográficas de machos e fêmeas a extratos etanólicos de frutos verdes e maduros de pessegueiro - Prunus persica, cultivar Chimarrita (Rosaceae, pitangueira - Eugenia uniflora (Myrtaceae, guabirobeira - Campomanesia xanthocarpa (Myrtaceae e araçazeiro - Psidium cattleianum (Myrtaceae. Foram também observadas as influências da cor (amarela, verde e vermelha e da composição do substrato de oviposição (polpas de araçá, guabiroba, pitanga e pêssego na fecundidade da espécie. As respostas eletroantenográficas de fêmeas foram significativamente distintas para os extratos de guabiroba verde e madura, araçá maduro e pitanga verde. Em antenas de machos, as maiores despolarizações médias foram registradas em resposta aos extratos de guabiroba verde e madura, araçá verde e maduro e pitanga verde. As respostas eletrofisiológicas geradas não diferiram estatisticamente entre os sexos, para todos os tratamentos. A cor do substrato não afetou a oviposição. As fêmeas ovipositaram mais nos substratos contendo polpa de pêssego e de guabiroba, quando comparados aos respectivos controles.The South American fruit fly Anastrepha fraterculus (Wiedemann, 1830 is one of the greatest threats to the fruit growing industry in Brazil. During the feeding process, the larvae build galleries within the fruit, altering the flavor and damaging its production and commercialization. The present work had as its objective to study the factors involved in the choice of the host by A. fraterculus. Electroantennographic responses of the males and

  1. Viabilidad de huevos y modelo de jaula para la cría artificial masiva de Anastrepha fraterculus (Diptera: Tephritidae Viability of eggs and screen cage model for mass artificial rearing of Anastrepha fraterculus (Diptera: Tephritidae

    Directory of Open Access Journals (Sweden)

    Juliana García

    2011-12-01

    Full Text Available El objetivo del presente trabajo fue determinar la viabilidad de huevos y el modelo de jaula apropiada para la cría artificial masiva de Anastrepha fraterculus (Wiedemann. Los resultados muestran que el periodo de máxima oviposición ocurre durante los primeros 10 días en jaulas modelo Mediana, lo cual permite obtener el volumen de huevos necesario para alimentar el pie de cría de A. fraterculus en una cría masiva. Considerando que se encontró relación positiva entre el volumen de huevos ovipositados y el porcentaje de eclosión de huevos, en un periodo de 21 días de colecta, este periodo coincide además con los valores de eclosión más altos. Entre los modelos de jaulas evaluadas: Mediana, Grande y Mission; el modelo Mediana mostró los mejores resultados al evaluar el número de ía con un valor promedio de 11,4. La jaula que mostró menores resultados fue el modelo Mission, con un valor promedio de 4,6 huevos/hembra/día. Las jaulas grandes mostraron valores menores a las jaulas Medianas, pero las diferencias fueron no significativas. Los buenos valores registrados en las jaulas Medianas posiblemente se deban a la estructura de la jaula, que presentó la cara interna dividida en muchos compartimientos, lo cual mejora la distribución de las moscas adultas y previene la mortalidad temprana por hacinamiento en la base o en el techo de la jaula.The aim of this study was to determine the viability of eggs and cage model suitable for artificial mass rearing of Anastrepha fraterculus (Wiedemann. The results show that the period of maximum oviposition occurs during the first 10 days in Medium cages which allows to obtain the necessary volume of eggs to feed the foot of rearing of A. fraterculus in a mass rearing. Considering that a positive relationship was found between the volume of eggs oviposited and the hatchability percentage in a period of 21 days of collection, this period coincides with the highest values of hatching. Among the

  2. X-ray doses to safely release the parasitoid Diachasmimorpha longicaudata (Hymenoptera: Braconidae) reared on Anastrepha fraterculus larvae (Diptera: Tephritidae)

    Czech Academy of Sciences Publication Activity Database

    Bachmann, G. E.; Carabajal Paladino, Leonela Z.; Conte, C. A.; Devescovi, F.; Milla, F. H.; Cladera, J. L.; Segura, D. F.; Viscarret, M. M.

    2015-01-01

    Roč. 25, č. 9 (2015), s. 1092-1103. ISSN 0958-3157 R&D Projects: GA MŠk(CZ) EE2.3.30.0032 Institutional support: RVO:60077344 Keywords : biological control * gamma rays * Anastrepha fraterculus Subject RIV: GF - Plant Pathology, Vermin, Weed, Plant Protection Impact factor: 0.938, year: 2014

  3. Current knowledge of the species complex Anastrepha fraterculus (Diptera, Tephritidae) in Brazil.

    Science.gov (United States)

    Vaníčková, Lucie; Hernández-Ortiz, Vicente; Bravo, Iara Sordi Joachim; Dias, Vanessa; Roriz, Alzira Kelly Passos; Laumann, Raul Alberto; Mendonça, Adriana de Lima; Paranhos, Beatriz Aguiar Jordão; do Nascimento, Ruth Rufino

    2015-01-01

    The study of the species complex Anastrepha fraterculus (Af complex) in Brazil is especially important in a taxonomical, evolutionary and pest management context, because there are evidences that some of them may occur in sympatry. In this review, we analyzed the main results supporting evidences that three cryptic species occur in Brazil. The taxonomical and phylogenetic relationships based on eggshell morphology, adult morphometrics, as well as cytotaxonomy and genetic differentiations are discussed. We also review available information on sexual behavior including acoustic communication of males during courtship and sexual incompatibility; and chemical signals involved in the communication between sexes, with a special focus on sex pheromones. We examined the role of long- and short-range pheromones (male-produced volatiles and cuticular hydrocarbons, respectively), their implications in sexual isolation, and their possible use for chemotaxonomic differentiation of the putative species of the Af complex. PMID:26798261

  4. The South American fruit fly, Anastrepha fraterculus (Diptera: Tephritidae) in Colombia

    International Nuclear Information System (INIS)

    Anastrepha fraterculus (Wied) is the most important fruit fly in Colombia. It has been trapped from the sea level up to 2000 m of altitude, but is is more abundant in the coffee growing area located at 1300 to 1700 masl, with temperatures between 18 to 22 deg. C (-min 11 deg. C,-max 25 deg. C). The main host in that area is Coffea arabica L., but it also has 14 additional identified hosts that belong to 9 families. In the hot climates from 0 to 1000 m of altitude it breeds in mango (Mangifera indica L.) and guava (Psidium guayava L:). The pest has not been stabilised in the cultivated upper lands between 2300-2600 masl. (author)

  5. Relevant genetic differentiation among Brazilian populations of Anastrepha fraterculus (Diptera, Tephritidae)

    Science.gov (United States)

    Manni, Mosè; Lima, Kátia Manuela; Guglielmino, Carmela Rosalba; Lanzavecchia, Silvia Beatriz; Juri, Marianela; Vera, Teresa; Cladera, Jorge; Scolari, Francesca; Gomulski, Ludvik; Bonizzoni, Mariangela; Gasperi, Giuliano; Silva, Janisete Gomes; Malacrida, Anna Rodolfa

    2015-01-01

    Abstract We used a population genetic approach to detect the presence of genetic diversity among six populations of Anastrepha fraterculus across Brazil. To this aim, we used Simple Sequence Repeat (SSR) markers, which may capture the presence of differentiative processes across the genome in distinct populations. Spatial analyses of molecular variance were used to identify groups of populations that are both genetically and geographically homogeneous while also being maximally differentiated from each other. The spatial analysis of genetic diversity indicates that the levels of diversity among the six populations vary significantly on an eco-geographical basis. Particularly, altitude seems to represent a differentiating adaptation, as the main genetic differentiation is detected between the two populations present at higher altitudes and the other four populations at sea level. The data, together with the outcomes from different cluster analyses, identify a genetic diversity pattern that overlaps with the distribution of the known morphotypes in the Brazilian area. PMID:26798258

  6. Trials to determine levels of oviposition of Anastrepha fraterculus (Wied.) on fruit and artificial oviposition devices

    International Nuclear Information System (INIS)

    The current work was conducted in order to determine the level of oviposition of Anastrepha fraterculus on fresh mangos and artificial oviposition devices. Four trials were carried out during which freshly harvested fruit was exposed to wild South American adult fruit flies. The following viable oviposition/day/kg of fruit (viable ovipositions = emerged adults) were established: 79.16, 71.25, 83.6 and 60.6. The trials were carried out at 25 deg. C - 28 deg. C and 60%-80% relative humidity. Beginning with the first generation one trial was carried out which confirmed the acceptance of sexually mature females to oviposit on red oviposition devices consisting of wax-covered cloth. However, red plastic containers with holes of 0.5 mm did not produce good results. (author)

  7. Morphometric study of third-instar larvae from five morphotypes of the Anastrepha fraterculus cryptic species complex (Diptera, Tephritidae)

    OpenAIRE

    Nelson A Canal; Hernández-Ortiz, Vicente; Salas, Juan O. Tigrero; Selivon, Denise

    2015-01-01

    Abstract The occurrence of cryptic species among economically important fruit flies strongly affects the development of management tactics for these pests. Tools for studying cryptic species not only facilitate evolutionary and systematic studies, but they also provide support for fruit fly management and quarantine activities. Previous studies have shown that the South American fruit fly, Anastrepha fraterculus , is a complex of cryptic species, but few studies have been performed on the mor...

  8. Assessment of Injuries Caused by Anastrepha fraterculus (Wied.) (Diptera: Tephritidae) on the Incidence of Bunch Rot Diseases in Table Grape.

    Science.gov (United States)

    Machota, R; Bortoli, L C; Cavalcanti, F R; Botton, M; Grützmacher, A D

    2016-08-01

    Anastrepha fraterculus (Wied.) is the main insect pest of table grapes (Vitis vinifera) in the Southern Region of Brazil. In this study, we aimed to investigate the effect of fruit puncturing by adult females and larval infestation by A. fraterculus on the occurrence of bunch rot disease in the grape (cultivar "Itália") by evaluating grapes (a) punctured for oviposition by females of A. fraterculus, sterilized in laboratory with novaluron (40 mg L(-1)) and further spray-inoculated separately with Botrytis cinerea (1 × 10(6) conidia mL(-1)), Glomerella cingulata (1 × 10(6) conidia mL(-1)), and bacteria and yeast that cause sour rot (1 × 10(5) cells mL(-1)), (b) grapes punctured for oviposition by non-sterilized females with pathogen spraying, (c) grapes with mechanical wounds and pathogen spraying, (d) grapes with no wounds and with pathogen spraying, (e) grapes punctured for oviposition by A. fraterculus chemically sterilized in laboratory with novaluron, (f) grapes punctured for oviposition by A. fraterculus non-sterilized in laboratory with novaluron, (g) grapes with mechanical wounds, and (h) grapes with no sterilization or pathogen spraying. Our data indicated that the mechanical and oviposition wounds caused by A. fraterculus increased the percentage of grapes infected by B. cinerea, G. cingulata, and microorganisms of acid rot. The grape puncturing by A. fraterculus and the mechanical wound allows the penetration of B. cinerea and microorganisms leading to acid rot. We conclude that the fruit fly A. fraterculus may facilitate phytopathogens penetration leading to bunch rots in the table grape Itália. PMID:26911161

  9. Effect of host plant chemistry on genetic differentiation and reduction of gene flow among Anastrepha fraterculus (Diptera: Tephritidae) populations exploiting sympatric, synchronic hosts.

    Science.gov (United States)

    Oroño, Luis; Paulin, Laura; Alberti, Andrea C; Hilal, Mirna; Ovruski, Sergio; Vilardi, Juan C; Rull, Juan; Aluja, Martin

    2013-08-01

    Herbivore host specialization includes changes in behavior, driven by locally induced adaptations to specific plants. These adaptations often result in sexual isolation that can be gauged through detection of reduced gene flow between host associated populations. Hypothetically, reduced gene flow can be mediated both by differential response to specific plant kairomones and by the influence of larval diet on some adult traits such as pheromone composition. These hypotheses could serve as a model to explain rapid radiation of phytophagous tephritid fruit flies, a group that includes several complexes of cryptic species. The South American Fruit Fly Anastrepha fraterculus (Wiedemann) is a complex of at least seven cryptic species among which pheromone mediated sexual isolation resulted in rapid differentiation. Cryptic species also exhibit differences in host affiliation. In search of a model explaining rapid radiation in this group, we studied host plant chemical composition and genetic structure of three host associated sympatric populations of A. fraterculus. Chemical composition among host plant fruit varied widely both for nutrient and potentially toxic secondary metabolite content. Adaptation to plant chemistry appears to have produced population differentiation. We found host mediated differentiation to be stronger between populations exploiting sympatric synchronic hosts differing in chemical composition, than between populations that exploit hosts that fruit in succession. Gene flow among such host associated populations was extremely low. We propose as a working hypothesis for future research, that for those differences to persist over time, isolating mechanisms such as male produced sex pheromones and female preferences resulting from adaptation to different larval diets should evolve. PMID:23905743

  10. Remating behavior in Anastrepha fraterculus (Diptera: Tephritidae) females is affected by male juvenile hormone analog treatment but not by male sterilization.

    Science.gov (United States)

    Abraham, S; Liendo, M C; Devescovi, F; Peralta, P A; Yusef, V; Ruiz, J; Cladera, J L; Vera, M T; Segura, D F

    2013-06-01

    The sterile insect technique (SIT) has been proposed as an area-wide method to control the South American fruit fly, Anastrepha fraterculus (Wiedemann). This technique requires sterilization, a procedure that affects, along with other factors, the ability of males to modulate female sexual receptivity after copulation. Numerous pre-release treatments have been proposed to counteract the detrimental effects of irradiation, rearing and handling and increase SIT effectiveness. These include treating newly emerged males with a juvenile hormone mimic (methoprene) or supplying protein to the male's diet to accelerate sexual maturation prior to release. Here, we examine how male irradiation, methoprene treatment and protein intake affect remating behavior and the amount of sperm stored in inseminated females. In field cage experiments, we found that irradiated laboratory males were equally able to modulate female remating behavior as fertile wild males. However, females mated with 6-day-old, methoprene-treated males remated more and sooner than females mated with naturally matured males, either sterile or wild. Protein intake by males was not sufficient to overcome reduced ability of methoprene-treated males to induce refractory periods in females as lengthy as those induced by wild and naturally matured males. The amount of sperm stored by females was not affected by male irradiation, methoprene treatment or protein intake. This finding revealed that factors in addition to sperm volume intervene in regulating female receptivity after copulation. Implications for SIT are discussed. PMID:23340454

  11. Progress on the artificial rearing of Anastrepha fraterculus (Wied.) (Diptera: Tephritidae) in Colombia

    International Nuclear Information System (INIS)

    With the purpose of evaluating post-harvest quarantine treatments for fruits in Colombia, we have established experimental colonies of fruit flies (Diptera: Tephritidae) at the Colombian Agricultural Institute (ICA), plant quarantine Laboratory Ibague (Tol.) at 24 deg. C, 70-80% RH, and 10 hr light. The procedures and results refer only to A. fraterculus from September 1994 to September 1996. The first adults, obtained from Coffea arabica L. cherries, were initially multiplied in fruits and later put on artificial diet. The handling procedures, diets and data collected are adapted from those established by USDA-ARA 1981, Celedonio et al. 1989, Gonzalez et al. Martinez et al. 1987, and others, that were used for Anastrepha spp. The average percentages of recuperation between stages that were hatched 66.0±1.0; first to third instar larvae 28.12±14.4; third instar larvae to pupae 81.80±3.0; pupae to adult 75.82±3.4. Additional data related to partial mortality of the stages are also discussed. The average recuperation from eggs to third instar larvae of 17.57%, and from eggs to emerged adults of 9.5±4.9, is low and indicates the necessity of doing basic research to improve the procedures. (author)

  12. Disinfestation of apples attacked by the fruit fly Anastrepha fraterculus (Wied.) (Diptera: Tephritidae) using gamma radiation of cobalt-60

    International Nuclear Information System (INIS)

    Apples, cv. Gala, artificially infested during 72 hours with adults of the fruit fly Anastrepha fraterculus (Wied.) were irradiated with the following gamma radiation doses: 0 (control), 25, 50, 75 and 100 Gy, at the dose rate of 1048 Gy per hour. After irradiation fruits were put in plastic bags with 80 ml of sugar cane bagasse. The bags were maintained in a rearing room at temperature 21 - 24 deg C, 65 - 75% R H, and photo period of 12 hours. Pupae obtained were sieved out and kept in small glass tubes. All doses tested did not allow emergence of adults. (author)

  13. Responses of Anastrepha fraterculus (Diptera: Tephritidae to pesticides used in organic fruit production Respuestas de Anastrepha fraterculus (Diptera: Tephritidae a plaguicidas utilizados en la producción orgánica de frutas

    Directory of Open Access Journals (Sweden)

    Ricardo Bisotto-de-Oliveira

    2012-12-01

    Full Text Available The South American fruit fly, Anastrepha fraterculus (Diptera: Tephritidae, is an economically important pest of fruit production in Southern Brazil. In organically managed orchards the species has traditionally been controlled with oils, plant extracts, and solutions such as pyroligneous extract and lime sulfur. The objectives of this study were to examine the possible deterrent effect of pesticides with the highest electroantennographic bioactivity on fruit flies and to assess their effects on the viability of pupae in treated fruits. Antennae were exposed to pyroligneous extract (BioPirol7M®, 0.4%, lime sulfur solution (SulFertilizantes, 1%, neem (Organic Neem®, 0.5%, and rotenone (Rotenat®, 0.6%, taking into account fly sex, age and reproductive status. Pupal viability was assessed for larvae reared in papaya (Carica papaya var. Calyman and guava (Psidium guajava var. Paluma fruits treated with the pesticides that generated the strongest electrophysiological responses. The bioactivity of A. fraterculus antennae was highest when stimulated with pyroligneous extract and lime sulfur solution, for young and mated flies. Neither substance inhibited oviposition and larval development in treated fruits, a result that has important implications for A. fraterculus management in organic systems.La mosca sudamericana, Anastrepha fraterculus (Diptera: Tephritidae, es una plaga de importancia económica en la producción de frutas en el sur de Brasil. En huertos bajo manejo orgánico la especie se controla tradicionalmente con aceites, extractos vegetales y soluciones como el extracto piroleñoso y sulfuro de cal. Los objetivos de este estudio fueron evaluar el posible efecto disuasivo de los plaguicidas que presentan la más alta bioactividad electroantenográficas en moscas de la fruta y evaluar sus efectos sobre la viabilidad de las pupas en frutas tratadas. Las antenas fueron expuestas al extracto piroleñoso (BioPirol 7M®, 0,4%, solución de

  14. Male Sexual Behavior and Pheromone Emission Is Enhanced by Exposure to Guava Fruit Volatiles in Anastrepha fraterculus.

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    Guillermo E Bachmann

    Full Text Available Plant chemicals can affect reproductive strategies of tephritid fruit flies by influencing sex pheromone communication and increasing male mating competitiveness.We explored whether exposure of Anastrepha fraterculus males to guava fruit volatiles and to a synthetic blend of volatile compounds released by this fruit affects the sexual performance of wild and laboratory flies. By means of bioassays and pheromone collection we investigated the mechanism underlying this phenomenon.Guava volatile exposure enhanced male mating success and positively affected male calling behavior and pheromone release in laboratory and wild males. Changes in male behavior appear to be particularly important during the initial phase of the sexual activity period, when most of the mating pairs are formed. Exposure of laboratory males to a subset of guava fruit volatiles enhanced mating success, showing that the response to the fruit might be mimicked artificially.Volatiles of guava seem to influence male mating success through an enhancement of chemical and physical signals related to the communication between sexes. This finding has important implications for the management of this pest species through the Sterile Insect Technique. We discuss the possibility of using artificial blends to improve the sexual competitiveness of sterile males.

  15. Cuticular Hydrocarbons of the South American Fruit Fly Anastrepha fraterculus: Variability with Sex and Age

    Czech Academy of Sciences Publication Activity Database

    Vaníčková, Lucie; Svatoš, Aleš; Kroiss, J.; Kaltenpoth, M.; do Nascimento, R. R.; Hoskovec, Michal; Břízová, Radka; Kalinová, Blanka

    2012-01-01

    Roč. 38, č. 9 (2012), s. 1133-1142. ISSN 0098-0331 Institutional support: RVO:61388963 Keywords : Anastrepha fratercules species complex * cuticular hydrocarbons * sex-specific differences * age-dependent production Subject RIV: CC - Organic Chemistry Impact factor: 2.462, year: 2012

  16. Effectiveness of Metarhizium anisopliae against immature stages of Anastrepha fraterculus fruitfly (Diptera : Tephritidae Eficácia de Metarhizium anisopliae a estágios imaturos de Anastrepha fraterculus a mosca das frutas (Diptera : Tephritidae

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    Ricardo Henry Rodrigues Destéfano

    2005-03-01

    Full Text Available The study evaluated the effectiveness of Metarhizium anisopliae var. anisopliae (Hyphomycetes : Moniliales strain E9, isolated from the pasture spittlebug Deois flavopicta (Hemiptera : Cercopidae, against larvae, prepupae and pupae stage and emergent adults of Anastrepha fraterculus, the South American fruitfly. The bioassay was carried out simulating field conditions, on autoclaved (AS and non-autoclaved (NAS soil from typical citrus orchards in the State of São Paulo, Southeastern region of Brazil. Various concentrations of conidia were incorporated into the soil the mortality, calculated based on the percentage of adult emergence, was 86% for the highest conidia concentrations: 2.52 x 10(10 for AS and 2.52 x 10(10 for NAS. The lethal concentration (LC50, expressed as conidia concentration, was 8.44 x 10(9 conidia/g of soil (S for AS and 12.23 x 10(9 conidia/g of soil for NAS.O estudo avaliou a eficácia de Metarhizium anisopliae var. anisopliae, (Hyphomycetes : Moniliales linhagem E9, isolada da cigarrinha das pastagens Deois flavopicta (Hemiptera : Cercopidae, contra larvas, prepupas, pupas e adultos emergentes de Anastreha fraterculus, a mosca Sul Americana das frutas. Os bioensaios foram conduzidos simulando condições de campo em solo autoclavado (AS e não autoclavado (NAS de pomares típicos de citros no Estado de São Paulo, sudeste do Brasil. Várias concentrações de conídios foram incorporadas no solo. A mortalidade calculada sobre a porcentagem de adultos emergentes, foi de 86% para as concentrações mais altas de conídios: 2,52 x 10(10 para AS e 2,52 x 10(10 para NAS. A concentração letal (LC50 expressa pela concentração de conídios, foi 8,44 x 10(9 conídios/g de solo para AS e 12,2 x 10(9 conídios/g/S para NAS.

  17. A review of hymenopterous parasitoid guilds attacking Anastrepha spp. and Ceratitis capitata (Diptera: Tephritidae) in Argentina

    Energy Technology Data Exchange (ETDEWEB)

    Ovruski, Sergio M.; Orono, Luis E.; Nunez-Campero, Segundo; Schliserman, Pablo; Albornoz-Medina, Patricia; Bezdjian, Laura P.; Nieuwenhove, Guido A. Van; Martin, Cristina B. [Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET), Tucuman (Argentina). Planta Piloto de Procesos Industriales Microbiologicos y Biotecnologia. Div. Control Biologico de Plagas

    2006-07-01

    This study provides detailed information on the diversity, abundance, guilds, host plant and host fly ranges, distribution, and taxonomic status of hymenopterous parasitoid species associated with Ceratitis capitata (Wiedemann) and Anastrepha spp. (A. fraterculus (Wiedemann) and A. schultzi Blanchard) in Argentina. Moreover, the article also argues future needs regarding the use of some parasitoid species as an alternative tool in fruit fly management programs of the National Fruit Fly Control and Eradication Program (PROCEM-Argentina). Data used for this work were obtained from numerous old and recent published articles on fruit fly parasitoids in Argentina. (author)

  18. A review of hymenopterous parasitoid guilds attacking Anastrepha spp. and Ceratitis capitata (Diptera: Tephritidae) in Argentina

    International Nuclear Information System (INIS)

    This study provides detailed information on the diversity, abundance, guilds, host plant and host fly ranges, distribution, and taxonomic status of hymenopterous parasitoid species associated with Ceratitis capitata (Wiedemann) and Anastrepha spp. (A. fraterculus (Wiedemann) and A. schultzi Blanchard) in Argentina. Moreover, the article also argues future needs regarding the use of some parasitoid species as an alternative tool in fruit fly management programs of the National Fruit Fly Control and Eradication Program (PROCEM-Argentina). Data used for this work were obtained from numerous old and recent published articles on fruit fly parasitoids in Argentina. (author)

  19. Demographic analysis of mass-reared Anastrepha fraterculus (Diptera: Tephritidae in Tucumán, Argentina Análisis demográfico de la cría masiva de Anastrepha fraterculus (Diptera: Tephritidae en Tucumán, Argentina

    Directory of Open Access Journals (Sweden)

    Héctor E. Jaldo

    2007-06-01

    Full Text Available The life cycle of a lab-adapted mass reared strain of Anastrepha fraterculus at 24°C constant temperature was 41 days, including the preoviposition period. Mortality rates of 8%, 22%, 22%, 5%, and 43% were recorded for eggs, larvae, pupae, adults (preoviposition stage and adults (reproductive stage, respectively. The intrinsic rate of increase was 0.065, the net fecundity rate was 120.4, and the gross fecundity rate was 328.4. In a stable population, 22% would be eggs, 53% larvae, 18% pupae, 4% preoviposition adults, and 3% reproductive adults.El ciclo de vida de Anastrepha fraterculus en cría masiva a temperatura constante de 24°C fue de 41 días, incluyendo el período de preoviposición. Las mortalidades para huevo, larva, pupa, adultos en preoviposición y adultos reproductivos fueron de 8%, 22%, 22%, 5% y 43%, respectivamente. La tasa intrínseca de incremento natural fue de 0,065, la tasa de fertilidad neta fue de 120,4, y la tasa de fertilidad bruta fue de 328,4. En una población estable 22% debería ser huevos, 53% larvas, 18% pupas, 4% adultos en preoviposición y 3% adultos en etapa reproductiva.

  20. Quarantine cold treatments for Ceratitis capitata and Anastrepha fraterculus (Diptera: Tephritidae) for citrus in Argentina: conclusions after 10 years of research

    Energy Technology Data Exchange (ETDEWEB)

    Willink, Eduardo; Gastaminza, Gerardo; Salvatore, Analia; Gramajo, M. Cecilia; Acenolaza, Mariana; Avila, Rosana; Favre, Paola, E-mail: ewillink@eeaoc.org.a [Estacion Experimental Agroindustrial Obispo Colombres (EEAOC), Tucuman (Argentina)

    2006-07-01

    Argentina has quarantine restrictions in some markets due to the presence of two quarantine fruit fly pests: Ceratitis capitata and Anastrepha fraterculus. One alternative is the use of cold quarantine treatments during transport of the commodities. Since 1996, the Estacion Experimental Agroindustrial Obispo Colombres (EEAOC), Tucuman, Argentina, has developed different cold quarantine treatments for citrus. In the present work we present all the data the EEAOC generated in the last ten years in order to facilitate the development of such cold treatments. Fruit flies were obtained from the colonies reared at EEAOC. Four citrus species were analyzed: lemon, grapefruit, orange and tangerines. Different varieties were analyzed for each fruit species. Sensitivity trials aiming at determine the most tolerant stage as well as to asses if there is any influence of varieties on cold tolerance were performed. Finally we compared the tolerance to cold between the two species. Sensitivity trials showed that mature larvae (L3) are the most tolerant stage for both fruit fly species. There was no effect of the varieties and the two fruit fly species were equally sensible to cold. Our results provide strong evidence in favor of concluding that any cold treatment developed for C. capitata is effective for A. fraterculus. (author)

  1. Quarantine cold treatments for Ceratitis capitata and Anastrepha fraterculus (Diptera: Tephritidae) for citrus in Argentina: conclusions after 10 years of research

    International Nuclear Information System (INIS)

    Argentina has quarantine restrictions in some markets due to the presence of two quarantine fruit fly pests: Ceratitis capitata and Anastrepha fraterculus. One alternative is the use of cold quarantine treatments during transport of the commodities. Since 1996, the Estacion Experimental Agroindustrial Obispo Colombres (EEAOC), Tucuman, Argentina, has developed different cold quarantine treatments for citrus. In the present work we present all the data the EEAOC generated in the last ten years in order to facilitate the development of such cold treatments. Fruit flies were obtained from the colonies reared at EEAOC. Four citrus species were analyzed: lemon, grapefruit, orange and tangerines. Different varieties were analyzed for each fruit species. Sensitivity trials aiming at determine the most tolerant stage as well as to asses if there is any influence of varieties on cold tolerance were performed. Finally we compared the tolerance to cold between the two species. Sensitivity trials showed that mature larvae (L3) are the most tolerant stage for both fruit fly species. There was no effect of the varieties and the two fruit fly species were equally sensible to cold. Our results provide strong evidence in favor of concluding that any cold treatment developed for C. capitata is effective for A. fraterculus. (author)

  2. The South American fruit fly, Anastrepha fraterculus (Wied.); advances in artificial rearing, taxonomic status and biological studies. Proceedings of a workshop

    International Nuclear Information System (INIS)

    One of the fruit flies of major concern, because of its economic and quarantine importance in the Americas, is the exotic Mediterranean fruit fly, Ceratitis capitata, which is established throughout the Central and South American countries, excluding Chile. Chile, Mexico and the USA have conducted multi-million dollar campaigns to prevent the establishment of this and other exotic fruit flies in their respective territories, in support of the development of important fruit production and export industries. Other important fruit fly species, which are native to the American continent, are those of the genus Anastrepha. In this group, of most economic importance are A. obliqua and A. ludens for Mexico and some Central American countries and A. fraterculus and A. obliqua for South America. In this publication, attention is focused on A. fraterculus, the South American fruit fly. This species, as it is presently recognized, occurs from Mexico to Argentina and is reported from approximately 80 host plants, including commercial fruits of economic importance, such as mango, citrus, guava, apple and coffee. As A. fraterculus if considered to be of high economic and quarantine importance in many countries in South America, it is justifiable to recommend and promote the implementation of activities to strengthen knowledge of the species and develop techniques for its control and/or eradication. The development of sterile insect technique (SIT) and other biological control methods are very encouraging alternatives, as can be seen from examples in Mexico and the USA, where these approaches are in use against A. ludens and A. obliqua

  3. SUSCETIBILIDADE DE GENÓTIPOS DE MACIEIRA A Anastrepha fraterculus (DIPTERA: TEPHRITIDAE EM DIFERENTES CONDIÇÕES DE INFESTAÇÃO

    Directory of Open Access Journals (Sweden)

    JANAÍNA PEREIRA DOS SANTOS

    2015-03-01

    Full Text Available RESUMO O estudo objetivou registrar as injúrias de Anastrepha fraterculus (Diptera: Tephritidae, em dois estádios de desenvolvimento dos frutos das macieiras M-11/00 e ‘Catarina’, submetidos a três condições de infestação a campo, na safra de 2011/2012. O experimento foi conduzido em pomar mantido sob manejo orgânico, na Estação Experimental da Epagri de Caçador-SC. O número médio de moscas foi avaliado semanalmente, com quatro armadilhas do tipo McPhail. Frutos imaturos e maduros da seleção M-11/00 e da cultivar Catarina foram submetidos às condições de infestação artificial, controlada e natural. No início da frutificação, após o raleio, em cada genótipo, 500 frutos foram aleatoriamente ensacados com embalagens de tecido não texturizado (TNT. Os frutos submetidos à infestação artificial foram envoltos, individualmente, por uma gaiola contendo duas fêmeas acasaladas de A. fraterculus, que permaneceram por três dias para oviposição. Na infestação controlada, no mesmo dia da instalação das gaiolas, frutos protegidos tiveram as embalagens retiradas para que ficassem por três dias expostos. Frutos não ensacados foram utilizados para avaliar a infestação natural. Em cada estádio de desenvolvimento, foram registrados os valores dos atributos físico-químicos dos frutos. O número médio de A. fraterculus durante a safra foi de 3,08 moscas/armadilha/ semana. Na seleção M-11/00, em todas as condições de infestação, o número médio de larvas e pupários foi maior em frutos maduros. Na cv. Catarina, estes números não diferiram entre as condições de infestação nem entre os estádios de desenvolvimento. Pupários de A. fraterculus não foram observados em frutos de ‘Catarina’, e nesta cultivar constatou-se maior acidez e menor relação sólidos solúveis/acidez.

  4. Cytogenetic Analysis of the South American Fruit Fly Anastrepha fraterculus (Diptera:Tephritidae) Species Complex: Construction of Detailed Photographic Polytene Chromosome Maps of the Argentinian Af. sp.1 Member

    Science.gov (United States)

    Augustinos, Antonios A.; Drosopoulou, Elena; Lanzavecchia, Silvia B.; Cladera, Jorge L.; Caceres, Carlos; Bourtzis, Kostas; Mavragani-Tsipidou, Penelope; Zacharopoulou, Antigone

    2016-01-01

    Genetic and cytogenetic studies constitute a significant basis for understanding the biology of insect pests and the design and the construction of genetic tools for biological control strategies. Anastrepha fraterculus is an important pest of the Tephritidae family. It is distributed from southern Texas through eastern Mexico, Central America and South America causing significant crop damage and economic losses. Currently it is considered as a species complex; until now seven members have been described based on multidisciplinary approaches. Here we report the cytogenetic analysis of an Argentinian population characterized as Af. sp.1 member of the Anastrepha fraterculus species complex. The mitotic karyotype and the first detailed photographic maps of the salivary gland polytene chromosomes are presented. The mitotic metaphase complement consists of six (6) pairs of chromosomes, including one pair of heteromorphic sex chromosomes, with the male being the heterogametic sex. The analysis of the salivary gland polytene complement shows a total number of five long chromosomes that correspond to the five autosomes of the mitotic karyotype and a heterochromatic network corresponding to the sex chromosomes. Comparison of the polytene chromosome maps between this species and Anastrepha ludens shows significant similarity. The polytene maps presented here are suitable for cytogenetic studies that could shed light on the species limits within this species complex and support the development of genetic tools for sterile insect technique (SIT) applications. PMID:27362546

  5. Cytogenetic Analysis of the South American Fruit Fly Anastrepha fraterculus (Diptera:Tephritidae) Species Complex: Construction of Detailed Photographic Polytene Chromosome Maps of the Argentinian Af. sp.1 Member.

    Science.gov (United States)

    Gariou-Papalexiou, Angeliki; Giardini, María Cecilia; Augustinos, Antonios A; Drosopoulou, Elena; Lanzavecchia, Silvia B; Cladera, Jorge L; Caceres, Carlos; Bourtzis, Kostas; Mavragani-Tsipidou, Penelope; Zacharopoulou, Antigone

    2016-01-01

    Genetic and cytogenetic studies constitute a significant basis for understanding the biology of insect pests and the design and the construction of genetic tools for biological control strategies. Anastrepha fraterculus is an important pest of the Tephritidae family. It is distributed from southern Texas through eastern Mexico, Central America and South America causing significant crop damage and economic losses. Currently it is considered as a species complex; until now seven members have been described based on multidisciplinary approaches. Here we report the cytogenetic analysis of an Argentinian population characterized as Af. sp.1 member of the Anastrepha fraterculus species complex. The mitotic karyotype and the first detailed photographic maps of the salivary gland polytene chromosomes are presented. The mitotic metaphase complement consists of six (6) pairs of chromosomes, including one pair of heteromorphic sex chromosomes, with the male being the heterogametic sex. The analysis of the salivary gland polytene complement shows a total number of five long chromosomes that correspond to the five autosomes of the mitotic karyotype and a heterochromatic network corresponding to the sex chromosomes. Comparison of the polytene chromosome maps between this species and Anastrepha ludens shows significant similarity. The polytene maps presented here are suitable for cytogenetic studies that could shed light on the species limits within this species complex and support the development of genetic tools for sterile insect technique (SIT) applications. PMID:27362546

  6. Cytogenetic Analysis of the South American Fruit Fly Anastrepha fraterculus (Diptera:Tephritidae Species Complex: Construction of Detailed Photographic Polytene Chromosome Maps of the Argentinian Af. sp.1 Member.

    Directory of Open Access Journals (Sweden)

    Angeliki Gariou-Papalexiou

    Full Text Available Genetic and cytogenetic studies constitute a significant basis for understanding the biology of insect pests and the design and the construction of genetic tools for biological control strategies. Anastrepha fraterculus is an important pest of the Tephritidae family. It is distributed from southern Texas through eastern Mexico, Central America and South America causing significant crop damage and economic losses. Currently it is considered as a species complex; until now seven members have been described based on multidisciplinary approaches. Here we report the cytogenetic analysis of an Argentinian population characterized as Af. sp.1 member of the Anastrepha fraterculus species complex. The mitotic karyotype and the first detailed photographic maps of the salivary gland polytene chromosomes are presented. The mitotic metaphase complement consists of six (6 pairs of chromosomes, including one pair of heteromorphic sex chromosomes, with the male being the heterogametic sex. The analysis of the salivary gland polytene complement shows a total number of five long chromosomes that correspond to the five autosomes of the mitotic karyotype and a heterochromatic network corresponding to the sex chromosomes. Comparison of the polytene chromosome maps between this species and Anastrepha ludens shows significant similarity. The polytene maps presented here are suitable for cytogenetic studies that could shed light on the species limits within this species complex and support the development of genetic tools for sterile insect technique (SIT applications.

  7. Anastrepha ludens and Anastrepha serpentina (Diptera: Tephritidae) do not infest Psidium guajava (Myrtaceae), but Anastrepha obliqua occasionally shares this resource with Anastrepha striata in nature.

    Science.gov (United States)

    Birke, Andrea; Aluja, Martin

    2011-08-01

    This study examined whether economically important fruit fly species Anastrepha ludens (Loew), Anastrepha serpentina (Wiedemann), and Anastrepha obliqua (Macquart) (Diptera: Tephritidae) may opportunistically exploit guavas, Psidium guajava L. (Myrtaceae), growing near preferred natural hosts. We collected 3,459 kg of guavas and 895 kg of other known host species [sour orange, Citrus aurantium L.; grapefruit, Citrus paradisi Macfadyen; mango, Mangifera indica L.; white sapote, Casimiroa edulis La Llave and Lex.; sapote, Pouteria sapota (Jacq.); sapodilla, Manilkara zapota L.; and wild plum, Spondias purpurea L. and Spondias mombin L.] along an altitudinal gradient over a 4-yr period (2006-2009). Plants were growing in sympatry in 23 localities where the guavas are usually infested in the state of Veracruz, M6xico. The guava samples yielded 20,341 Anastrepha spp. pupae in total (overall mean, 5.88 pupae per kg of fruit). Confirming previous reports, Anastrepha fraterculus (Wiedemann) and Anastrepha striata (Schiner) were found heavily infesting guavas in Veracruz. Importantly, although we did not find evidence that A. ludens and A. serpentina are able to attack this valuable commodity, we document for the first time in the agriculturally important state of Veracruz that P. guajava is an alternative natural host plant of A. obliqua. We recovered two fruit in the mango-growing locality of la Vibora, Tlalixcoyan, that harbored larvae of A. striata and A. obliqua. This finding has important practical implications for management of A. obliqua. Over the entire altitudinal gradient, when individual fruit infestation was examined, a dynamic pattern of species dominance was unveiled with guavas growing below 800 m above sea level mainly attacked by A. striata and a progressive replacement with increasing altitude by A. fraterculus. Interestingly, most individual fruit examined (97%) harbored a single species of fruit fly, a finding that may be taken as evidence of

  8. Adult population dynamics of the bolivian fruit flies Anastrepha sp. (Diptera: Tephritidae at Municipality Coroico, Department of The La Paz, Bolivia

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    Gonzáles Manuel

    2011-08-01

    Full Text Available The investigation was carried out in Paco (1603 msnm communities, it Marca (1511 msnm and Capellania (1720 msnm, of the Municipality of Coroico, department of La Paz, Bolivia. In orchards frutícolas semicomerciales, they settled 15 traps distributed McPhail in a similar way among areas, five for community, sampling" "points. The censuses were carried out with an interval of 15 days, they were identified and they quantified the mature flies of the fruit. For the captures of the individuals, they settled the traps McPhail, using the attractive (Buminal one and as conserving borax. The traps were distributed in representative parcels, having as main cultivations, orange, mandarin, grapefruit, guava and avocado. The identification taxonómica of the captured species was carried out in the laboratory of the National Program of Control of Flies of the fruit (PROMOSCA, clerk of the National Service of Agricultural Sanity and Alimentary (SENASAG Inocuidad. 1210 mature flies of the fruit were captures, those that grouped for species, sex, capture dates and community, corresponding to the seven carried out censuses. The species of Anastrepha fraterculus (Wiedeman were identified, Anastrepha striata Schiner, Anastrepha serpentine (Wiedeman, Anastrepha sp, Ceratitis capitata (Wiedemann, Blepharoneura sp Loew, Hexaresta sp Hering, Hexachaeta sp Loew, Tomoplagia sp Coquillett, Tetreuaresta sp Hendel, being that of more presence Anastrepha fraterculus (Wiedeman with 818 and Ceratitis capitata (Wiedemann, with 354. The temperature and presence of spices put up frutícolas of flies of the fruit in maturation state explain the observed fluctuations.

  9. Gamma radiation use as a quarantine treatment for Ceratitis capitata (Wied., 1824) and Anastrepha fraterculus (Wied., 1830) in papaya fruits (Carica papaya, Linnaeus), cultivar sunrise solo

    International Nuclear Information System (INIS)

    The gamma irradiation as treatment for control of the immature stages of fruit flies, C. capitata and A. fraterculus in papaya fruits, cultivar Sunrise Solo is studied. The gamma rays attenuation was observed by one and two papaya fruits placed between source and infested fruit, and this changed the radiation doses required to obtain mortality in eggs and larvae of the Medfly. The efficacy of irradiation was higher when the infested papayas were packed in paper box. The radiation dose determined using the Probit 9 concept, for immature stages mortality of C. capitata was 107,74 Gy and for A. fraterculus was 50,82 Gy. The sterilizing doses for adults of C. capitata and D. fraterculus, irradiated as pupae, was 60 Gy and 40 Gy, respectively. (author)

  10. Mass production in liquid diet and radiosterilization of South American fruit fly Anastrepha sp.1 aff. fraterculus (Wied., 1830) (Diptera: Tephritidae)

    International Nuclear Information System (INIS)

    Both the biological control techniques as the Sterile Insect Technique (SIT), are used in many countries to control, suppress and even eradicate fruit flies and other pests in agriculture and public health. The use of such techniques minimizes the continuous employment of insecticides, protects the environment and conforms to standards for food safety. However, it is necessary to implement such programs, technology to produce millions of parasitoids and the pest in its own laboratory with biological quality similar to the insects found in nature and cost competitive with chemical control. The objectives of this study was to establish protocols for artificial rearing of A. sp. 1 aff. fraterculus in liquid larval diet that will achieve levels of mass production for a possible reduction in the cost of establishing and determining the dose of radiation sterilization of adult A. sp. 1 aff. fraterculus meeting the quality parameters required by the Sterile Insect Technique with insects from the creation of Radioentomology Laboratory of CENA/USP. Seven experimental diets compared to the conventional diet used in Radioentomology Lab. of CENA/USP, which was used as control. All seven diets have in common the exclusion of agar in its formulation. Only two of the diets tested were suitable for larval development of the fly, they compared with the standard diet, showed inferior results with respect to the volume of recovered larvae, pupae and weight of emergency, however, no significant differences regarding the periods of development , pupal recovery, sex ratio and longevity under stress. It is possible to replace the diet with agar for liquid diets for artificial creation of A. sp. 1 aff. fraterculus, reduced cost and greater convenience of handling, but due to their quality standards lower than the standard diet, more tests are needed especially regarding the adaptability of the insect to the new environment. To determine the sterilizing dose this study examined the

  11. Mass production in liquid diet and radiosterilization of South American fruit fly Anastrepha sp.1 aff. fraterculus (Wied., 1830) (Diptera: Tephritidae); Criacao massal em dieta liquida e radioesterilizacao da mosca-sulamericana Anastrepha sp.1 aff. fraterculus (Wied., 1830) (Diptera: Tephritidae)

    Energy Technology Data Exchange (ETDEWEB)

    Kamiya, Aline Cristiane

    2010-07-01

    Both the biological control techniques as the Sterile Insect Technique (SIT), are used in many countries to control, suppress and even eradicate fruit flies and other pests in agriculture and public health. The use of such techniques minimizes the continuous employment of insecticides, protects the environment and conforms to standards for food safety. However, it is necessary to implement such programs, technology to produce millions of parasitoids and the pest in its own laboratory with biological quality similar to the insects found in nature and cost competitive with chemical control. The objectives of this study was to establish protocols for artificial rearing of A. sp. 1 aff. fraterculus in liquid larval diet that will achieve levels of mass production for a possible reduction in the cost of establishing and determining the dose of radiation sterilization of adult A. sp. 1 aff. fraterculus meeting the quality parameters required by the Sterile Insect Technique with insects from the creation of Radioentomology Laboratory of CENA/USP. Seven experimental diets compared to the conventional diet used in Radioentomology Lab. of CENA/USP, which was used as control. All seven diets have in common the exclusion of agar in its formulation. Only two of the diets tested were suitable for larval development of the fly, they compared with the standard diet, showed inferior results with respect to the volume of recovered larvae, pupae and weight of emergency, however, no significant differences regarding the periods of development , pupal recovery, sex ratio and longevity under stress. It is possible to replace the diet with agar for liquid diets for artificial creation of A. sp. 1 aff. fraterculus, reduced cost and greater convenience of handling, but due to their quality standards lower than the standard diet, more tests are needed especially regarding the adaptability of the insect to the new environment. To determine the sterilizing dose this study examined the

  12. Biodiversidade de moscas-das-frutas do gênero Anastrepha (Diptera, Tephritidae no campus da ESALQ-USP, Piracicaba, São Paulo

    Directory of Open Access Journals (Sweden)

    Keiko Uramoto

    2004-01-01

    Full Text Available Este trabalho foi conduzido na área abrangida pelo campus da Escola Superior de Agricultura Luiz de Queiroz da Universidade de São Paulo, no município de Piracicaba, Estado de São Paulo. Teve como objetivos, determinar a composição do gênero Anastrepha Schiner e verificar a associação das espécies de plantas hospedeiras, estabelecidas na área, com as espécies de Anastrepha. Foram examinadas 23.277 fêmeas de Anastrepha coletadas por meio de armadilhas McPhail e 18 espécies pertencentes a nove grupos de espécies foram registradas. Um total de 563 amostras de frutos pertencentes a nove famílias e, pelo menos, 23 espécies de plantas foi coletado em 47 estações de capturas. Foram identificadas 10.243 fêmeas e das 18 espécies de Anastrepha capturadas em armadilhas somente seis emergiram das amostras de frutos: A. bistrigata Bezzi, A. fraterculus (Wied., A. obliqua (Macquart, A. pseudoparallela (Loew, A. serpentina (Wied. e A. sororcula Zucchi. A. fraterculus infestou maior diversidade de frutos. Os hospedeiros preferidos de A. obliqua foram as espécies da família Anacardiaceae. A. pseudoparallela e A. serpentina infestaram exclusivamente Passifloraceae e Sapotaceae, respectivamente. A. fraterculus é registrada pela primeira vez em sapoti (Manilkara zapota L. no Brasil.Biodiversity of fruit flies of the genus Anastrepha (Diptera, Tephritidae at the ESALQ-USP campus, Piracicaba, São Paulo. The aim of this study was to determine the number of species of Anastrepha Schiner at the campus and to verify the association between host plant species and Anastrepha species in this area. A total of 23,277 females of Anastrepha collected in McPhail traps was examined, and 18 species belonging to nine species groups were recorded. A total of 563 fruit samples representing at least 23 plant species from nine families was collected in 47 capture sites. A total of 10,243 females was identified. Of the 18 Anastrepha species captured in traps

  13. Faunistic analysis of Anastrepha spp. (Diptera: Tephritidae) on a guava orchard under organic management in the municipality of Una, Bahia, Brazil

    International Nuclear Information System (INIS)

    We carried out a study to characterize fruit fly populations on an organic guava orchard (Psidium guajava cv. Paluma) in the municipality of Una, southern region of the state of Bahia, Brazil, using faunistic analysis of the adult fruit f y specimens captured in McPhail traps from January 2004 through March 2007. A total of 22,673 specimens of Anastrepha (15,306 females and 7,367 males) were captured. Thirteen species of Anastrepha were recorded. A. fraterculus and A. obliqua were the more frequent and dominant species, accounting for 90.1% of all females captured in the traps. A. fraterculus was the predominant species (more frequent, constant and dominant). The high value of the Simpson index (0.62) and the low values of Shannon-Wiener (0.83) and equitability (0.49) indices indicated the dominance and high frequency of A. fraterculus and A. obliqua on the guava orchard despite the presence of other fruit species as potential hosts of fruit flies. (author)

  14. Contribución al Estudio de las Moscas Anastrephas en Colombia.

    Directory of Open Access Journals (Sweden)

    González Mendoza Rafael

    1952-11-01

    Full Text Available 1. Colombia tiene amplias posibilidades de desarrollar una industria frutícola floreciente dadas las excepcionales condiciones de ubicación geográfica, diversidad de climas y de suelos. 2. La deficiente producción frutera actual es el resultado de una reunión de factores adversos, entre los que resalta el desconocimiento de los problemas científicos que afectan a dicha industria. En este aspecto, los problemas fitosanitarios, abandonados y faltos de investigación, ocupan lugar preponderante. 3. Las moscas Anastrephas constituyen la plaga más importante de la fruticultura nacional, y por esta razón, un estudio sobre estos insectos es un tema de importancia. 4. Las principales "moscas de las frutas" pertenecen dentro de la familia Trypetidae, a los géneros: Dacus, Rhaglethis, Ceratitis, Dactrocera y Anastrepha. 5. Los nombres comunes con que se conocen las moscas Anastrephas varían de un país a otro y se relacionan particularmente con el lugar de origen de las distintas especies o la fruta determinada como preterida por la mosca en una localidad. En Colombia la denominación vernácula más difundida es la de "gusano de las frutas". También se nombra el insecto como "mosca o gusano del mango" o "gusano de la guayaba". 6. Los nombres científicos de las moscas distinguen a una, gran cantidad de especies. En Colombia, varios autores han reportado la existencia de las especies A.fraterculus, A. ludens, A. mombinpracoptans, A. pikeli y A. serpentina. Todas estas especies inciden en las regiones colombianas comprendidas entre 0 y 2000 metros de altura, es decir, en casi todas las regiones agrícolas importantes (frutales, café, cacao de temperaturas entre 14° y 30° C. 7. Las moscas Anastrephas están confinadas casi exclusivamente al continente americano entre las latitudes 27° N. y 35° S. Particularmente, la especie A. fraterculus, una de las más difundidas en Colombia, fué determinada por Wiedemann (1830

  15. Parasitóides (Braconidae associados à Anastrepha (Tephritidae em frutos hospedeiros do litoral sul da Bahia Parasitoids (Braconidae associated with Anastrepha (Tephritidae in host fruits on the southern coast of Bahia, Brazil

    Directory of Open Access Journals (Sweden)

    Maria Aparecida Leão Bittencourt

    2012-12-01

    Full Text Available Dentre os organismos que atuam no controle biológico natural dos tefritídeos, os representantes da família Braconidae constituem-se no mecanismo de parasitismo natural mais atuante, e na região Neotropical, representantes de Opiinae são os principais agentes de controle de Anastrepha. Este trabalho teve por objetivo conhecer a percentagem de parasitismo e as espécies de braconídeos associados às fruteiras cultivadas em municípios da região Litoral Sul da Bahia. No período de agosto de 2005 a março de 2008, coletaram-se frutos hospedeiros de moscas-das-frutas de diversas espécies botânicas, e dos frutos foram obtidas as seguintes espécies de Anastrepha: A. fraterculus, A. obliqua, A. bahiensis, A serpentina, A. sororcula e A. zenildae. Do total de 838 exemplares de braconídeos, 21,36% foram da espécie Utetes anastrephae (Viereck, provenientes de cajá, carambola, goiaba, manga e pitanga; 4,42% da espécie Asobara anastrephae (Muesebeck obtidos dos frutos de cajá, carambola e goiaba, e apenas um exemplar da espécie Opius bellus Gahan (0,12% que emergiu da amostra de goiaba. A espécie Doryctobracon areolatus (Szépligeti (74,10% foi predominante e emergiu dos pupários provenientes de todos os frutos hospedeiros coletados, provavelmente pela maior eficiência desta espécie em localizar as larvas dos tefritídeos. A percentagem média de parasitismo de Anastrepha spp. foi de 4,45%.Among the organisms acting in the natural biological control of tephritids, members of the family Braconidae are the most active form of natural parasite, and in Neotropical regions, members of Opiinae are the main control agents of Anastrepha. The objective of this work was to discover the percentage of parasitism and the species of braconid associated with fruit trees growing in cities on the southern coast of Bahia. During the period of August, 2005 to March, 2008, hosts fruits of fruit flies from several plant species were collected and from the

  16. Resolution of inter and intra-species relationships of the West Indian fruit fly Anastrepha obliqua.

    Science.gov (United States)

    Scally, M; Into, F; Thomas, D B; Ruiz-Arce, R; Barr, N B; Schuenzel, E L

    2016-08-01

    The West Indian fruit fly, Anastrepha obliqua (Diptera: Tephritidae), is an economically important pest that inhabits areas of South and Central America, Mexico and the Caribbean with occasional infestations in the southern United States. We examine intra-specific relationships within A. obliqua as well as interspecific relationships to other Anastrepha species using a multi-locus data set comprising nine loci (seven nuclear, two mitochondrial) with 105 operational taxonomic units. The results based on a concatenated set of nuclear loci strongly support the monophyly of A. obliqua and most of the other species previously identified by morphology. A split between Peruvian A. obliqua samples and those from other locations was also identified. These results contrast with prior findings of relationships within A. obliqua based on mitochondrial data, as we found a marked discrepancy between nuclear and mitochondrial loci. These analyses suggest that introgression, particularly between A. obliqua and fraterculus species, may be one explanation for the discrepancy and the high mitochondrial diversity reported for A. obliqua could be the result of incomplete lineage sorting. PMID:27126185

  17. Sex specific differences in perception of the pheromone in Anastrepha fraterculus

    Czech Academy of Sciences Publication Activity Database

    Břízová, Radka; Vaníčková, Lucie; Kalinová, Blanka; Nascimento, R. R.; Hoskovec, Michal

    Tours: International Society of Chemical Ecology, 2010. s. 210-210. [International Society of Chemical Ecology. Annual Meeting /26./. 31.07.2010-04.08.2010, Tours] Institutional research plan: CEZ:AV0Z40550506 Keywords : South American fruit fly * monoterpenes * sesquiterpenes * antennal activities Subject RIV: CC - Organic Chemistry

  18. Current knowledge of the species complex Anastrepha fraterculus (Diptera, Tephritidae) in Brazil

    Czech Academy of Sciences Publication Activity Database

    Vaníčková, Lucie; Hernández-Ortiz, V.; Bravo, I. S. J.; Dias, V.; Roriz, A. K. P.; Laumann, R. A.; Mendonca, A. L.; Paranhos, B. A. J.; do Nascimento, R. R.

    -, č. 540 (2015), s. 211-237. ISSN 1313-2989 Institutional support: RVO:61388963 Keywords : South American fruit fly * cryptic species * taxonomy * sexual behavior * chemical communication Subject RIV: EG - Zoology Impact factor: 0.933, year: 2014 http://zookeys.pensoft.net/articles.php?id=6228

  19. Intraspecific variation of cuticular hydrocarbon profiles in the Anastrepha fraterculus (Diptera: Tephritidae) species complex

    Czech Academy of Sciences Publication Activity Database

    Vaníčková, Lucie; Břízová, Radka; Mendonca, A. L.; Pompeiano, A.; do Nascimento, R. R.

    2015-01-01

    Roč. 139, č. 9 (2015), s. 679-689. ISSN 0931-2048 Institutional support: RVO:61388963 Keywords : chemotaxonomy * GCxGC/TOFMS * multiple factorial analyses * putative species * South American fruit fly Subject RIV: CB - Analytical Chemistry, Separation Impact factor: 1.650, year: 2014

  20. Identification of male-borne attractants in Anastrepha fraterculus (Diptera: Tephritidae)

    Czech Academy of Sciences Publication Activity Database

    Milet-Pinheiro, P.; Navarro, D. M. A.; De Aquino, N. C.; Ferreira, L. L.; Tavares, R. F.; Correia da Silva, R. C.; Lima-Mendonca, A.; Vaníčková, Lucie; Mendonca, A. L.; do Nascimento, R. R.

    2015-01-01

    Roč. 25, č. 3 (2015), s. 115-122. ISSN 0937-7409 Institutional support: RVO:61388963 Keywords : South American fruit fly * sexual pheromone * male-borne attractants * GC-EAD * behavioral activity Subject RIV: CC - Organic Chemistry Impact factor: 1.923, year: 2014

  1. Pheromone analyses of the Anastrepha fraterculus (Diptera: Tephritidae) cryptic species complex

    Czech Academy of Sciences Publication Activity Database

    Břízová, Radka; Mendonca, A. L.; Vaníčková, L.; Mendonca, Al. L.; Da Silva, C. E.; Tomčala, Aleš; Paranhos, B. A. J.; Dias, V. S.; Joachim-Bravo, I. S.; Hoskovec, Michal; Kalinová, Blanka; do Nascimento, R. R.

    2013-01-01

    Roč. 96, č. 3 (2013), s. 1107-1115. ISSN 0015-4040 Institutional support: RVO:61388963 Keywords : South American fruit fly * GCxGC/TOE-MS * principal component analysis (PCA) Subject RIV: CC - Organic Chemistry Impact factor: 1.056, year: 2013

  2. Isolation and identification of the pheromone components of the Argentine population of Anastrepha fraterculus (Diptera: Tephritidae)

    Czech Academy of Sciences Publication Activity Database

    Kalinová, Blanka; Břízová, Radka; Vaníčková, L.; Hoskovec, Michal; Bachmann, G.; Vera, M. T.; Nascimento, R. R.

    Bogotá: -, 2014. s. 88. [ALAEQ 2014. Congress of the Latin American Association of Chemical Ecology /3./. 18.11.2014-21.11.2014, Bogotá] R&D Projects: GA MŠk 7AMB13AR018 Institutional support: RVO:61388963 Keywords : fruit flies * male sex pheromones * populations Subject RIV: CB - Analytical Chemistry, Separation

  3. First record of Coptera haywardi Loiácono (Hymenoptera: Diapriidae) as a parasitoid of fruit-infesting Tephritidae (Diptera) in Brazil

    OpenAIRE

    Aguiar Menezes, Elen L.; Menezes, Eurípedes B.; Loiácono, Marta Susana

    2003-01-01

    This study reports the first occurrence of Coptera haywardi Loiácono as a pupal parasitoid of fruit-infesting Tephritidae in Brazil. We reared this diapriid from fruits of Eugenia uniflora (Surinam cherry) infested by Anastrepha fraterculus (Wiedemann) and/or Anastrepha sororcula Zucchi. We also identified two other species of pupal parasitoids: Pachrycrepoideus vindemmiae Rondani and Spalangia endius Walker (Pteromalidae). Four species of larval-pupal parasitoids were also recorded: Doryctob...

  4. Beckwith-Wiedemann syndrome: dental management.

    LENUS (Irish Health Repository)

    Garvey, M T

    1997-06-01

    Beckwith-Wiedemann syndrome (BWS) comprises multiple congenital anomalies with a risk of childhood tumours. Macroglossia is the most common manifestation. Two cases are presented to illustrate the importance of early referral and the role of preventive dentistry.

  5. Response of Anastrepha species (Diptera: Tephritidae) to synthetic attractants in Colombia

    International Nuclear Information System (INIS)

    Efficient trapping systems for Anastrepha spp is an essential requirement for integrated fruit fly management. In order to find more efficient attractants for this genus, food-based attractants were tested in two orchards in Colombia against A. obliqua, A. striata and A. fraterculus populations. Six experiments were carried out from 2001 to 2004, four of them were done in a mango orchard and the other two in a coffee plantation. The synthetic food attractants tested were different combination of Ammonium Acetate (AA), Putrescine (PT), Ammonium Bicarbonate (AB) and Trimethylamine (TMA); the controls were NuLure and Torula. Attractants were placed in Multilure traps using equidistant spacing of 28 m. Trap catches were recorded twice per week for a total of eight weeks. Traps were serviced once per week and rotated after each service. The experimental design was random blocks with five repetitions. In experiments 1, 2, 3, 5 and 6, NuLure and Torula were statistically the best attractants, however, synthetic lures caught more flies than the controls in the fourth one, when climate was hot and dry: 1/2AA+PT, 1/2AB+PT and 1/4AB+PT were the best attractant for males of A. obliqua and 1/2AA+PT and 1/4AB+PT were the best for females. In some repetitions the synthetic lures capture more or equal numbers of flies than the controls, perhaps when in the previous days the weather was hot and dry. Attractants in general caught a larger number of old females than young or mature females in the first tests, but the mature females were predominant in the fourth one when the synthetic attractants showed to be better. Fruit flies showed different response to attractants depending on sex, species and climatic conditions. More studies are needed in order to improve trapping systems for Anastrepha. (author)

  6. Wiedemann-Franz law for magnetized plasmas

    International Nuclear Information System (INIS)

    The electrical and the thermal conductivities of a plasma are transport coefficients of major interest in magnetic confinement fusion research. In metals the ratio of the thermal conductivity, κ, to the electrical conductivity, σ, is proportional to the temperature, T, (Wiedemann-Franz law in the form given by Lorenz). In this paper we investigate the so-called Lorenz number L=κ/σT in the case of a two-fluid plasma in a uniform magnetic field, where we have to distinguish the various directional fluxes and the electron and ion contributions. The check of the validity of the Wiedemann-Franz law for a plasma has not received much attention in the literature except in some plasma physics textbooks, which have used simple collision terms. In the present paper we employ the full Fokker-Planck collision term. (author) 5 refs

  7. CASE REPORT OF BECKWITH-WIEDEMANN SYNDROME

    Directory of Open Access Journals (Sweden)

    Ravikanth

    2014-06-01

    Full Text Available In 1963 Beckwith presented a report on the first patient with extreme cytomegaly of adrenal cortex, hyperplasia of kidneys as well as pancreas and Leydig cell hyperplasia. Wiedemann completed description of the new syndrome by adding umbilical hernia and macroglossia. The diagnosis is made based on the clinical signs of omphalocele. [7] or some other umbilical deformity, macroglossia. [8] congenital asymmetry, visceromegaly (liver, pancreas, and kidneys. Newborn with macrosomia, macroglossia first differential diagnosis are infant of diabetic mother, congenital hypothyroidism etc. IDM can be identified easily with history of maternal diabetes. So congenital hypothyroidism is next common diagnosis and will be treated as hypothyroidism. If TSH, T3 and T4 are not clearly indicative of congenital hypothyroidism next consider the Beckwith Wiedemann syndrome in differential diagnosis of large for gestational age.

  8. Characterisation of the chemical profiles of Brazilian and Andean morphotypes belonging to the Anastrepha fraterculus complex (Diptera, Tephritidae)

    Czech Academy of Sciences Publication Activity Database

    Vaníčková, Lucie; Břízová, Radka; Pompeiano, A.; Ferreira, L. L.; De Aquino, N. C.; Tavares, R. F.; Rodriguez, L. D.; Mendonca, A. L.; Canal, N. A.; do Nascimento, R. R.

    -, č. 540 (2015), s. 193-209. ISSN 1313-2989 Institutional support: RVO:61388963 Keywords : cryptic species * chemotaxonomy * GCxGC/MS * PCA Subject RIV: EG - Zoology Impact factor: 0.933, year: 2014 http://zookeys.pensoft.net/articles.php?id=6224

  9. Effects of Different Semiochemical Found in the Sex Pheromone of the Males on the Response of Anastrepha fraterculus Females

    Czech Academy of Sciences Publication Activity Database

    Břízová, Radka; Juárez, L.; Ruiz, J.; Kalinová, Blanka; Bachmann, G.; Segura, D.; Fernández, P.; Teal, P.; Vera, T.

    Bangkok: Siam Print, 2014 - (Malavasi, A.; Cardoso-Pereira, R.; Orankanok, W.). s. 180 ISBN 978-616-358-012-2. [ISFFEI 2014. International Symposium on Fruit Flies of Economic Importance /9./. 12.05.2014-16.05.2014, Bangkok] Institutional support: RVO:61388963 Keywords : South American fruit fly * pheromone * sexual communication Subject RIV: CC - Organic Chemistry

  10. New species of and taxonomic notes on Anastrepha (Diptera: Tephritidae)

    Science.gov (United States)

    Seven new species of Anastrepha are described: A. conflua (Costa Rica), A. levefasciata (Peru), A. nolazcoae (Peru), A. paradentata (Mexico), A. raveni (Peru), A. trivittata (Brazil: Amazonas), and A. woodleyi (Bolivia). Anastrepha nunezae Steyskal, 1977, is recognized as a synonym of A. mucronota S...

  11. Wiedemann-Franz law for magnon transport

    Science.gov (United States)

    Nakata, Kouki; Simon, Pascal; Loss, Daniel

    2015-10-01

    One of the main goals of spintronics is to improve transport of information carriers and to achieve new functionalities with ultra-low dissipation. A most promising strategy for this holy grail is to use pure magnon currents created and transported in insulating magnets, in the complete absence of any conducting metallic elements. Here we propose a realistic solution to this fundamental challenge by analyzing magnon and heat transport in insulating ferromagnetic junctions. We calculate all transport coefficients for magnon transport and establish Onsager relations between them. We theoretically discover that magnon transport in junctions has a universal behavior, i.e., is independent of material parameters, and establish a magnon analog of the celebrated Wiedemann-Franz law, which governs charge transport at low temperatures. We calculate the Seebeck and Peltier coefficients, which are crucial quantities for spin caloritronics, and demonstrate that they assume universal values in the low-temperature limit. Finally, we show that our predictions are within experimental reach with current device and measurement technologies.

  12. Macroglossia and Beckwith-Wiedemann syndrome

    Directory of Open Access Journals (Sweden)

    Krasić Dragan

    2011-01-01

    Full Text Available Introduction. In 1963 Beckwith presented a report on the first patient with extreme cytomegaly of adrenal cortex, hyperplasia of kidneys and pancreas and Leydig cell hyperplasia. Wiedemann completed description of the new syndrome by adding umbilical hernia and macroglossia. The diagnosis is made based on the clinical signs of omphalocele or some other umbilical deformity, macroglossia, congenital asymmetry, visceromegaly (liver, pancreas, and kidneys. Case Outline. A 16-month-old male child was admitted for examination because of macroglossia. He underwent examination on several occasions by an endocrinologist due to recurrent hypoglycaemic crisis. The patient was observed by a paediatric neurophysicatrist for disorders of mental development. Hypoglycaemia, muscular hypotonia of the anterior abdominal wall with umbilical hernia and macroglossia were observed by clinical examination. Inratraoral examination revealed macroglossia with microstomia, suckling and swallowing difficulties, hypotonia of the perioral muscles with increased salivation. It was therefore decided to perform surgical reduction of the prominent tongue and develop good condition for nutrition, speech function and the development of orofacial system. Conclusion. The diagnosis of macroglossia is based on subjective clinical criteria such as the morphology and amount of protrusion of the tongue, difficulty in articulating sounds, breathing, and hypersalivation. Some authors have suggested that the tongue size may be analyzed radiographically with a cephalogram. Treatment of macroglossia is controversial because of the absence of objective clinical criteria.

  13. Preliminary studies for the colonization of Anastrepha obliqua and Anastrepha serpentina (Diptera: Tephritidae)

    International Nuclear Information System (INIS)

    A series of trials were carried out with the aim of collecting preliminary data for the colonization of Anastrepha obliqua and Anastrepha serpentina. Trials were focused on evaluating adequate oviposition media as well as their effect on fly demographic parameters; the effect of cage population densities on demographic parameters was also considered; for A. serpentina, egg disinfection treatments by organic acids was assayed, and a screening study was carried out for suitable pupation media. Nylon-made egging mesh resulted in the most efficient oviposition medium, while low insect densities provided the best conditions for increased rates of fly fertility. Organic acids (methyl-p-hydroxy-benzoic) were found to hamper egg hatch, while a variety of pupation media provided improved fly emergence rates vs. the naked pupation method. (author)

  14. Isolation, identification and determination of the biological activity of candidate fruit volatile components from Argania spinosa L. (Sapotacea)

    International Nuclear Information System (INIS)

    This study provides detailed information on the diversity, abundance, guilds, host plant and host fly ranges, distribution, and taxonomic status of hymenopterous parasitoid species associated with Ceratitis capitata (Wiedemann) and Anastrepha spp. (A. fraterculus (Wiedemann) and A. schultzi Blanchard) in Argentina. Moreover, the article also argues future needs regarding the use of some parasitoid species as an alternative tool in fruit fly management programs of the National Fruit Fly Control and Eradication Program (PROCEM-Argentina). Data used for this work were obtained from numerous old and recent published articles on fruit fly parasitoids in Argentina. (author)

  15. Isolation, identification and determination of the biological activity of candidate fruit volatile components from Argania spinosa L. (Sapotacea)

    Energy Technology Data Exchange (ETDEWEB)

    Bakri, A., E-mail: bakri@ucam.ac.m [University Cadi Ayyad, Marrakech (Morocco). Fac. of Science Semlalia. Insect Biological Control Unit; Dueben, B.D.; Proveaux, A.T.; Heath, R.R., E-mail: rheath@saa.ars.usda.go [U.S. Department of Agriculture (USDA/REE-ARS), Miami, FL (United States). Agricultural Research Service

    2006-07-01

    This study provides detailed information on the diversity, abundance, guilds, host plant and host fly ranges, distribution, and taxonomic status of hymenopterous parasitoid species associated with Ceratitis capitata (Wiedemann) and Anastrepha spp. (A. fraterculus (Wiedemann) and A. schultzi Blanchard) in Argentina. Moreover, the article also argues future needs regarding the use of some parasitoid species as an alternative tool in fruit fly management programs of the National Fruit Fly Control and Eradication Program (PROCEM-Argentina). Data used for this work were obtained from numerous old and recent published articles on fruit fly parasitoids in Argentina. (author)

  16. Conductive hearing loss in Beckwith-Wiedemann syndrome.

    Science.gov (United States)

    Schick, B; Brors, D; Prescher, A; Draf, W

    1999-05-01

    Beckwith-Wiedemann syndrome is a rare genetic overgrowth syndrome presenting with organomegaly, abdominal wall defects, macroglossia, and postnatal hypoglycemia. Head and neck manifestations of this abnormality include flame nevus of the forehead and characteristic sulci of the ear lobe. We present a 7-year-old child with Beckwith-Wiedemann syndrome and a rare finding of conductive hearing loss on both sides due to congenital malleus and stapedial fixation. Small fenestra stapedotomy and mobilization of malleus fixation in the epitympanum improved the child's hearing. The bony fixation of the malleus and stapes is explained as atavism of the processus anterior mallei and peripheral lamina stapedialis in embryological development. PMID:10375044

  17. Sexual Competitiveness of Anastrepha ludens (Diptera: Tephritidae) Males Exposed to Citrus aurantium and Citrus paradisi Essential Oils.

    Science.gov (United States)

    Morató, Santiago; Shelly, Todd; Rull, Juan; Aluja, Martin

    2015-04-01

    Males of the Mediterranean fruit fly (Ceratitis capitata (Wiedemann)) display increased mating competitiveness following exposure to the odor of certain host and nonhost plants, and this phenomenon has been used in the sterile insect technique to boost the mating success of released, sterile males. Here, we aimed to establish whether males of the Mexican fruit fly (Anastrepha ludens (Loew)) gain a mating advantage when exposed to the aroma of two preferred hosts, grapefruit (Citrus paradisi Macfadyen) and bitter orange (Citrus aurantium L.). Under seminatural conditions, we observed that, in trials using wildish males (from a young laboratory colony started with wild flies) exclusively, exposure to the aroma of bitter orange had no effect on male mating success but exposure to the odor grapefruit oil increased male mating success significantly. In a separate test involving both exposed and nonexposed wildish and mass-reared, sterile males, although wildish males were clearly more competitive than sterile males, exposure to grapefruit oil had no detectable effect on either male type. Exposure to oils had no effect on copulation duration in any of the experiments. We discuss the possibility that the positive effect of grapefruit essential oils on wildish male competitiveness may have been linked to exposure of females to grapefruit as a larval food, which may have imprinted them with grapefruit odors during pupal eclosion and biased their response as adults to odors of their maternal host. PMID:26470173

  18. Comparison of aggregation and feeding responses by normal and irradiated fruit flies, Ceratitis capitata and Anastrepha suspensa (Diptera: Tephritidae)

    International Nuclear Information System (INIS)

    Olfactory, aggregatory, and feeding responses of normal (untreated) laboratory stocks of Mediterranean fruit fly (medfly), Ceratitis capitata (Wiedemann), and of Caribbean fruit fly (caribfly), Anastrepha suspensa (Loew), were compared to those of flies irradiated (10 krad in air) 2 days before eclosion. Females of both species consumed greater quantities of protein hydrolysate solutions, entered protein hydrolysate-baited olfactory traps, and aggregated on agar plates containing protein hydrolysate in greater numbers than males of the same age and condition. However, male medflies consumed more sucrose than did females of the same age and condition. In the medfly, irradiation resulted in reduced olfactory response, reduced total food intake by flies of both sexes, and a significant reduction in aggregation on and intake of protein hydrolysate by females and of sugar consumption by males. In the irradiated caribfly, there was a significant reduction in olfactory response of females to yeast hydrolysate. In both sexes, aggregation on and consumption of yeast hydrolysate were reduced. Effects of irradiation on feeding behavior are discussed in relation to the biology of the flies and their control by the sterile insect release method

  19. Sonographic assessment of renal growth in patients with Beckwith-Wiedemann syndrome: the Beckwith-Wiedemann syndrome renal nomogram

    Directory of Open Access Journals (Sweden)

    Clara L Ortiz-Neira

    2009-01-01

    Full Text Available BACKGROUND: Beckwith-Wiedemann syndrome is a disorder of somatic overgrowth. Evidence of kidney overgrowth is a diagnostic criterion that may be used to help identify those patients who are at the greatest risk of developing Wilms tumors. In such subjects, kidney size is typically larger than that of age-matched normal controls. OBJECTIVE: The purpose of our study was to generate a nomogram that could be used to measure renal dimensions in children with Beckwith-Wiedemann syndrome in a clinical setting. MATERIALS & METHODS: All of the Beckwith-Wiedemann syndrome patients followed at our institution from 1996 to 2004 were eligible for inclusion in our study. Renal length was measured with a curvilinear transducer and with the patient supine. Renal lengths were measured for both kidneys using real-time ultrasound for all patients. Their data were compared with those of age-matched controls reported in the 1984 study by Rosenbaum et al. RESULTS: Ninety-six children with Beckwith-Wiedemann syndrome were followed from 1996 to 2004. Forty-three of these patients met our criteria for inclusion in the study: 28 girls (65% and 15 boys (35%. We identified a linear relationship between kidney length and patient age. No statistically significant differences in renal length were found between boys and girls (p=0.2153 or between the kidneys on either side of the body (p=0.9613. CONCLUSION: Our study provides a practical, simple renal growth chart that offers a reasonable, sensitive method for evaluating kidney size in children with Beckwith-Wiedemann syndrome.

  20. A New Adult Diet Formulation for Sterile Males of Anastrepha ludens and Anastrepha obliqua (Diptera: Tephritidae).

    Science.gov (United States)

    Orozco-Dávila, Dina; Quintero-Fong, Luis

    2015-08-01

    A new adult diet formulation was evaluated for sterile Anastrepha ludens (Loew) and Anastrepha obliqua (Macquart) males at the emergence and release facility of fruit flies in Mexico. The formulation consists of hydrolyzed protein, sugar, juvenile hormone analogue methoprene, and water. The proportion of the ingredients between the solute (4% hydrolyzed protein and 96% sugar) and solvent (10% methoprene and 90% water) was 5:1. This new formulation was called the 1:24 formulation. The main objectives of this study were to develop a simple way to supply the 1:24 formulation to adults and to compare the sexual performance of these flies with the performance of flies fed a standard diet (called the Mubarqui formulation) used at the emergence and release facility of fruit flies in Mexico. The preparation, time, and cost also were evaluated. The results showed no significant differences in the sexual behaviors of the males (number of males mating, number of males calling, mating latency, and mating duration) between the 1:24 formulation and the Mubarqui formulation. However, the cost and the required preparation time are much lower for the 1:24 formulation process than for the Mubarqui formulation process. Based on these results, we recommend the 1:24 formulation as an additional adult diet option in the handling of sterile flies. Its application is practical and does not require changes in packaging systems. The contribution of our findings and their potential application to the improvement of the sterile insect technique are discussed. PMID:26470310

  1. A revision of the Anastrepha robusta species group (Diptera: Tephritidae)

    Science.gov (United States)

    The Anastrepha robusta species group is revised to include the following 29 species: A. amaryllis Tigrero (Ecuador), A. amazonensis, n. sp. (Brazil: Amazonas), A. bella, n. sp. (Panamá), A. binodosa Stone (Colombia, Brazil: Amazonas, Pará), A. concava Greene (Costa Rica to Ecuador and Brazil: Amazon...

  2. Distribution of Anastrepha spp. in carambola orchards: Evidence for migration

    Science.gov (United States)

    Carambola orchards in Juana Diaz, Corozal, and Isabela, PR, were monitored for Anastrepha spp. fruit flies using Multi-lure traps baited with putrescine and ammonium acetate. The number of flies at various locations within the orchards were statistically compared with the expected distribution if fl...

  3. Ammonia Formulations and Capture of Anastrepha Fruit Flies (Diptera: Tephritidae)

    Science.gov (United States)

    Fruit flies in the genus Anastrepha, especially the reproductive age females, are attracted in numbers to protein baits. Synthetic lures based on the principle components of protein degradation, especially ammonia along with acetic acid, were tested against three of the most economically important ...

  4. Embryonic transcriptome analysis of the Caribbean fruit fly, Anastrepha suspensa

    Science.gov (United States)

    The embryonic transcriptome of the Caribbean fruit fly, Anastrepha suspensa, was sequenced by 454 pyrosequencing in an effort to isolate embryonic promoters and genes involved in programmed cell death. A cDNA library was constructed from total RNA pooled from various time points in embryogenesis usi...

  5. Dispersal and longevity of wild and mass-reared Anastrepha Ludens and Anastrepha Obliqua (Diptera: Tephritidae)

    International Nuclear Information System (INIS)

    The rates of dispersal and survival of sterile mass-reared laboratory flies and sterile wild flies of Anastrepha ludens (Loew) and Anastrepha obliqua (Macquart) were estimated and compared with a regular rectangular array of 64 food-baited traps spaced 60 m between traps around the release point in Tapachula Chiapas, Mexico. The traps were scored every day during the first week, and then every 3 d over a 30-d period. For A. obliqua, the number of males recaptured was higher than that of females, while for A. ludens, females were recaptured more frequently than males. The recapture rate for the wild strains ranged from 0.6-24.8% for A. ludens and 1.3-16.2% for A. obliqua and the corresponding ranges for the mass-reared strains were 0.5-7.1% and 0.5-3.0% respectively. The life expectancy was 4.7 d for wild and 4.3 d for mass-reared A. obliqua males but 3 and 2 d, respectively, for wild and mass-reared A. ludens males. The net displacement of A. ludens and A. obliqua ranged approximately from 100-250 m and took place mostly on the first day. Wild A. ludens moved to the northwest from the release point while the mass-reared strain moved to the west. The A. obliqua wild flies moved to the west, while the mass-reared strain shifted to the southwest. We discuss the implications of our findings as to the spacing and frequency of sterile fly releases for the suppression of wild populations. (author)

  6. Synthetic attractants for Anastrepha fruit flies in Mexico

    International Nuclear Information System (INIS)

    The efficacy of synthetic attractants in the capture of Anastrepha fruit flies (Anastrepha ludens, A. obliqua and A. serpentina) was tested in three commercial orchards of known fruit fly hosts: mango (Mangifera indica L.), mammy (Calocarpum mammosum L.) and Mexican plum (Spondias purpurea L.) in Chiapas, Mexico. Among the synthetic attractants tested, we found that Ammonium Acetate (AA) plus Putrescine (PT) in a liquid trap was often the best combination for attracting flies. Interestingly, the reduction of release rate of AA increases the capture of fruit flies. We also found that Ammonium Bicarbonate (AB) plus PT in a wet trap was effective in a Mexican plum orchard in comparison with the other combinations of synthetic attractants. However, the synthetic attractants in dry traps were not effective and always presented the lowest Captures. (author)

  7. A new species of Anastrepha from Colombia related to Mexican fruit fly (Díptera: Tephritidae

    Directory of Open Access Journals (Sweden)

    ALLEM L NORRBOM

    2005-06-01

    Full Text Available Anastrepha manizaliensis Norrbom & Korytkowski, new species, is described from Colombia. lt breeds in fruit of Juglans neotropica Diels (Juglandaceae, commonly known in Colombia as "cedro negro". The new species was previously confused with Mexican fruit fly, Anastrepha ludens (Loew, a major pest of citrus and mango, leading to quarantine problems, bul true A. ludens does not occur in Colombia.

  8. Non-Fermi liquids and the Wiedemann-Franz law

    Science.gov (United States)

    Mahajan, Raghu; Barkeshli, Maissam; Hartnoll, Sean A.

    2013-09-01

    A general discussion of the ratio of thermal and electrical conductivities in non-Fermi liquid metals is given. In metals with sharp Drude peaks, the relevant physics is correctly organized around the slow relaxation of almost-conserved momenta. While in Fermi liquids both currents and momenta relax slowly, due to the weakness of interactions among low-energy excitations, in strongly interacting non-Fermi liquids typically only momenta relax slowly. It follows that the conductivities of such non-Fermi liquids are obtained within a fundamentally different kinematics to Fermi liquids. Among these strongly interacting non-Fermi liquids we distinguish cases with only one almost-conserved momentum, which we term quasi-hydrodynamic metals, and with many patchwise almost-conserved momenta. For all these cases, we obtain universal expressions for the ratio of conductivities that violate the Wiedemann-Franz law. We further discuss the case in which long-lived “cold” quasiparticles, in general with unconventional scattering rates, coexist with strongly interacting hot spots, lines, or bands. For these cases, we characterize circumstances under which non-Fermi liquid transport, in particular a linear in temperature resistivity, is and is not compatible with the Wiedemann-Franz law. We suggest the likely outcome of future transport experiments on CeCoIn5, YbRh2Si2, and Sr3Ru2O7 at their critical magnetic fields.

  9. Neem derivatives are not effective as toxic bait for tephritid fruit flies.

    Science.gov (United States)

    Silva, M A; Bezerra-Silva, G C D; Vendramim, J D; Mastrangelo, T; Forim, M R

    2013-08-01

    Neem derivatives have been widely touted as replacements for pesticides. A feasible replacement of synthetic insecticides in the management of fruit flies could be to use neem products in baits. This study evaluated the bioactivity of neem (Azadirachta indica A. Juss) derivatives in bait for adults of Anastrepha fraterculus (Wiedemann) and Ceratitis capitata (Wiedemann). The estimated LCs50 values for A. fraterculus and C. capitata were 7,522 ppm (18.40 ppm of azadirachtin) and 1,368 ppm (3.35 ppm of azadirachtin), respectively, using an aqueous extract of neem seeds in bait after 10 d of experimentation. No significant differences in the mortality of A. fraterculus and C. capitata adults exposed to baits made from different extracts and neem oil were observed after 3 h or 2 or 6 d; differences among the treatments were observed only on the 10th day of the evaluation. We conclude that neem derivatives applied as a bait spray over citrus plants did not demonstrate a toxic effect on A. fraterculus and C. capitata. The reasons for the low efficacy of the neem bait on Tephritid fruit flies are discussed. PMID:24020292

  10. Prenatal diagnosis of Beckwith-Wiedemann syndrome by two- and three-dimensional ultrasonography

    Directory of Open Access Journals (Sweden)

    Edward Araujo Junior

    2013-12-01

    Full Text Available Beckwith-Wiedemann syndrome is a genetic syndrome characterized by macroglossia, omphalocele, fetal gigantism and neonatal hypoglycemia. The authors report a case of Beckwith-Wiedemann syndrome diagnosed in a 32-year-old primigravida in whom two-dimensional ultrasonography revealed the presence of abdominal wall cyst, macroglossia and polycystic kidneys. Three-dimensional ultrasonography in rendering mode was of great importance to confirm the previous two-dimensional ultrasonography findings.

  11. 46,XX ovotesticular disorder in a Mexican patient with Beckwith–Wiedemann syndrome: a case report

    Directory of Open Access Journals (Sweden)

    Macías-Gómez Nelly

    2012-09-01

    Full Text Available Abstract Introduction Beckwith–Wiedemann syndrome is an overgrowth syndrome that is characterized by hypoglycemia at birth, coarse face, hemihypertrophy and an increased risk to develop embryonal tumors. In approximately 15% of patients, the inheritance is autosomal dominant with variable expressivity and incomplete penetrance, whereas the remainder of Beckwith–Wiedemann syndrome cases are sporadic. Beckwith–Wiedemann syndrome molecular etiologies are complex and involve the two imprinting centers 1 (IC1 and 2 (IC2 of 11p15 region. This case report describes, for the first time, the unusual association of ovotesticular disorder in a patient from Morelia, Mexico with Wiedemann-Beckwith syndrome. Case presentation We report the case of a Mexican six-year-old girl with Beckwith–Wiedemann Syndrome, ambiguous genitalia, and bilateral ovotestes. She has a 46,XX karyotype without evidence of Y-chromosome sequences detected by fluorescence in situ hybridization with both SRY and wcp-Y probes. Conclusion Although a random association between these two conditions cannot be excluded, future analysis of this patient with Beckwith–Wiedemann syndrome and 46,XX ovotesticular disorder may lead to new insights into these complex pathologies. We speculate that a possible misregulation in the imprinted genes network has a fundamental role in the coexistence of these two disorders.

  12. Host Plant Record for the Fruit Flies, Anastrepha fumipennis and A. nascimentoi (Diptera, Tephritidae)

    OpenAIRE

    Uramoto, Keiko; Martins, David S; Lima, Rita C. A.; Roberto A. Zucchi

    2008-01-01

    The first host plant record for Anastrepha fumipennis Lima (Diptera: Tephritidae) in Geissospermum laeve (Vell.) Baill (Apocynaceae) and for A. nascimentoi Zucchi found in Cathedra bahiensis Sleumer (Olacaceae) was determined in a host plant survey of fruit flies undertaken at the “Reserva Natural da Companhia Vale do Rio Doce”. This reserve is located in an Atlantic Rain Forest remnant area, in Linhares county, state of Espírito Santo, Brazil. The phylogenetic relationships of Anastrepha spe...

  13. Nutritive value of diets with different carbohydrates for adult Anastrepha obliqua (Macquart) (Diptera, Tephritidae)

    OpenAIRE

    Tânia Mara de Lima Fontellas; Fernando Sérgio Zucoloto

    1999-01-01

    Adult Tephritidae, especially of the genus Anastrepha (Schiner, 1868), have been observed to feed on a wide variety of natural diets. The fruit on which they feed, in general, are rich in sugar content, chiefly glucose, frutose and sucrose, which are also the sugars that those insects utilise better. Neither the behavioural mechanisms, nor the physiological ones, that control food selection by insects, are well known. Because some of those aspects are not known for the species Anastrepha obli...

  14. Monozygotic male twins concordant for Beckwith-Wiedemann syndrome

    Energy Technology Data Exchange (ETDEWEB)

    Clemens, M.; McPherson, E.; Sherer, C. [West Penn Hospital, Pittsburgh, PA (United States)]|[Ludwig Institute for Cancer Reseach, LaJolla, CA (United States)] [and others

    1994-09-01

    The Beckwith-Wiedemann syndrome (BWS) is a multiple congenital anomaly syndrome characterized by macrosomia, macro glossia, visceromegaly, characteristic facies, and in some cases omphalocele, hypoglycemia, hemihypertrophy, and risk of embryonal tumors. Most cases occur sporadically in chromosomally normal individuals, but a few BWS patients have anomalies of 11p and others have evidence of microduplications or paternal isodisomy in this region. In some families with autosomal dominant transmission, BWS maps to 11p15.5, but the mechanism of transmission is not fully understood. BWS has been reported in 11 sets of MZ twins, including 10 female pairs (9 discordant and 1 partially concordant) and one male pair concordant for both BWS & dup 15q11.2-q13. We report a pair of premature male MZ twins with macroglossia, postnatal overgrowth, characteristic BWS facies, and mild developmental delay. One twin had hypoglycemia, but neither had omphalocele or hemihypertrophy and serial abdominal ultrasounds have been normal. DNA fingerprinting confirmed monozygosity. Chromosome studies showed a marker 11p14.2 in one twin only, and molecular genetic studies of the 11p15.5 region showed no evidence of duplication or isodisomy in either twin.

  15. Fetal growth patterns in Beckwith-Wiedemann syndrome.

    Science.gov (United States)

    Mussa, A; Russo, S; de Crescenzo, A; Freschi, A; Calzari, L; Maitz, S; Macchiaiolo, M; Molinatto, C; Baldassarre, G; Mariani, M; Tarani, L; Bedeschi, M F; Milani, D; Melis, D; Bartuli, A; Cubellis, M V; Selicorni, A; Silengo, M C; Larizza, L; Riccio, A; Ferrero, G B

    2016-07-01

    We provide data on fetal growth pattern on the molecular subtypes of Beckwith-Wiedemann syndrome (BWS): IC1 gain of methylation (IC1-GoM), IC2 loss of methylation (IC2-LoM), 11p15.5 paternal uniparental disomy (UPD), and CDKN1C mutation. In this observational study, gestational ages and neonatal growth parameters of 247 BWS patients were compared by calculating gestational age-corrected standard deviation scores (SDS) and proportionality indexes to search for differences among IC1-GoM (n = 21), UPD (n = 87), IC2-LoM (n = 147), and CDKN1C mutation (n = 11) patients. In IC1-GoM subgroup, weight and length are higher than in other subgroups. Body proportionality indexes display the following pattern: highest in IC1-GoM patients, lowest in IC2-LoM/CDKN1C patients, intermediate in UPD ones. Prematurity was significantly more prevalent in the CDKN1C (64%) and IC2-LoM subgroups (37%). Fetal growth patterns are different in the four molecular subtypes of BWS and remarkably consistent with altered gene expression primed by the respective molecular mechanisms. IC1-GoM cases show extreme macrosomia and severe disproportion between weight and length excess. In IC2-LoM/CDKN1C patients, macrosomia is less common and associated with more proportionate weight/length ratios with excess of preterm birth. UPD patients show growth patterns closer to those of IC2-LoM, but manifest a body mass disproportion rather similar to that seen in IC1-GoM cases. PMID:26857110

  16. Assessment of differences between X and gamma rays in order to validate a new generation of irradiators for insect sterilization

    Energy Technology Data Exchange (ETDEWEB)

    Mastrangelo, Thiago; Walder, Julio M.M., E-mail: piaui@cena.usp.b [Centro de Energia Nuclear na Agricultura (CENA), Piracicaba, SP (Brazil); Parker, Andrew G.; Jessup, Andrew; Orozco-Davila, Dina; Islam, Amirul; Dammalage, Thilakasiri, E-mail: A.Jessup@iaea.or [Joint FAO/IAEA-UN A-2444, Seibersdorf (Austria). Insect Pest Control Subprogramme; Pereira, Rui, E-mail: R.Cardoso-Pereira@iaea.or [Joint FAO/IAEA-UN, Vienna (Austria). Insect Pest Control Subprogramme

    2009-07-01

    Recent fears of terrorism provoked an increase in delays and denials of transboundary shipments of radioisotopes. This represents a serious constraint to sterile insect technique (SIT) programs around the world as they rely on the use of ionizing energy from radioisotopes for insect sterilization. In order to validate a novel Xray irradiator, a series of studies on Ceratitis capitata (Wiedemann) and Anastrepha fraterculus (Wiedemann) (Diptera: Tephritidae) were carried out, comparing the relative biological effectiveness (RBE) between X-rays and traditional gamma radiation from {sup 60}Co. Male C. capitata pupae and pupae of both sexes of A. fraterculus, both 24 to 48 h before adult emergence, were irradiated with doses ranging from 15 to 120 Gy and 10 to 70 Gy respectively. Estimated mean doses of 91.2 Gy of X and 124.9 Gy of gamma radiation induced 99% sterility in C. capitata males. Irradiated A. fraterculus were 99% sterile at about 40-60 Gy for both radiation treatments. Standard quality control parameters were not significantly affected by the two types of radiation. There were no significant differences between X and gamma radiation regarding mating indices. The RBE did not differ significantly between the tested X and gamma radiation, and X-rays are as biologically effective for SIT purposes as gamma rays are. This work confirms the suitability of this new generation of X-ray irradiators for pest control programs in UN Member States. (author)

  17. Assessment of differences between X and γ rays in order to validate a new generation of irradiators for insect sterilization

    International Nuclear Information System (INIS)

    Recent fears of terrorism provoked an increase in delays and denials of transboundary shipments of radioisotopes. This represents a serious constraint to sterile insect technique (SIT) programs around the world as they rely on the use of ionizing energy from radioisotopes for insect sterilization. In order to validate a novel Xray irradiator, a series of studies on Ceratitis capitata (Wiedemann) and Anastrepha fraterculus (Wiedemann) (Diptera: Tephritidae) were carried out, comparing the relative biological effectiveness (RBE) between X-rays and traditional γ radiation from 60Co. Male C. capitata pupae and pupae of both sexes of A. fraterculus, both 24 to 48 h before adult emergence, were irradiated with doses ranging from 15 to 120 Gy and 10 to 70 Gy respectively. Estimated mean doses of 91.2 Gy of X and 124.9 Gy of γ radiation induced 99% sterility in C. capitata males. Irradiated A. fraterculus were 99% sterile at about 40-60 Gy for both radiation treatments. Standard quality control parameters were not significantly affected by the two types of radiation. There were no significant differences between X and γ radiation regarding mating indices. The RBE did not differ significantly between the tested X and γ radiation, and X-rays are as biologically effective for SIT purposes as γ rays are. This work confirms the suitability of this new generation of X-ray irradiators for pest control programs in UN Member States. (author)

  18. A new generation of X ray irradiators for insect sterilization

    International Nuclear Information System (INIS)

    Recent fears of terrorism have provoked an increase in delays and denials of transboundary shipments of radioisotopes. This represents a serious constraint to sterile insect technique (SIT) programmes around the world as they rely on the use of ionizing radiation from radioisotopes for insect sterilization. To validate a novel X ray irradiator, a series of studies on Ceratitis capitata (Wiedemann) and Anastrepha fraterculus (Wiedemann) (Diptera: Tephritidae) were carried out, comparing the relative biological effectiveness (RBE) between X rays and traditional γ radiation from 60Co. Male C. capitata pupae and pupae of both sexes of A. fraterculus, both 24-48 h before adult emergence, were irradiated with doses ranging from 15 to 120 Gy and 10-70 Gy, respectively. Estimated mean doses of 91.2 Gy of X and 124.9 Gy of γ radiation induced 99% sterility in C. capitata males. Irradiated A. fraterculus were 99% sterile at ∼ 40-60Gy for both radiation treatments. Standard quality control parameters and mating indices were not significantly affected by the two types of radiation. The RBE did not differ significantly between the tested X and γ radiation, and X rays are as biologically effective for SIT purposes as γ rays are. This work confirms the suitability of this new generation of X ray irradiators for pest control programmes that integrate the SIT. (author)

  19. Two new Southern African Apatomyza Wiedemann (Diptera, Bombyliidae, Crocidiinae) with discussion on their phylogenetic position

    OpenAIRE

    Carlos José Einicker Lamas; Evenhuis, Neal L.

    2005-01-01

    Two new species of Apatomyza Wiedemann from South Africa, A. whocantell spec. nov. and A. angusticephala spec. nov., are described, illustrated, and placed within the most recent key to species. Into the data matrix recently used to infer a phylogenetic hypothesis for the subfamily, were added the two new taxa, in order to verify their position and relationships. They form the most apical clade in Apatomyza.Duas novas espécies de Apatomyza Wiedemann da África do Sul, A. whocantell spec. nov. ...

  20. Stüve-Wiedemann Syndrome: Update on Clinical and Genetic Aspects.

    Science.gov (United States)

    Romeo Bertola, Débora; Honjo, Rachel S; Baratela, Wagner A R

    2016-04-01

    Stüve-Wiedemann syndrome is a rare autosomal recessive disorder characterized by bowed long bones, joint restrictions, dysautonomia, and respiratory and feeding difficulties, leading to death in the neonatal period and infancy in several occasions. Since the first cases in 1971, much has been learned about this condition, including its molecular basis - mutations in the leukemia inhibitory factor receptor gene (LIFR) -, natural history and management possibilities. This review aims to highlight the clinical aspects, radiological features, molecular findings, and management strategies in Stüve-Wiedemann syndrome. PMID:27194968

  1. Finding column depedencies in sparse matrices over $ F_ 2 $ by block Wiedemann

    NARCIS (Netherlands)

    Penninga, O.

    1998-01-01

    Large systems of linear equations over $mathbb{F_2$ with sparse coefficient matrices have to be solved as a part of integer factorization with sieve-based methods such as in the Number Field Sieve algorithm. In this report, we first discuss the Wiedemann algorithm to solve these systems and investig

  2. Multiple haemangiomas, diaphragmatic eventration and Beckwith-Wiedemann syndrome: an unusual association.

    Science.gov (United States)

    Francisco, Telma; Gonçalves, Rui Miguel; Borges, Cristina; Neto, Maria Teresa

    2013-01-01

    A 6-month-old girl with Beckwith-Wiedemann syndrome, multiple haemangiomas (axillary, laryngeal, pulmonary and hepatic) and diaphragmatic eventration was reported. All tumours responded to treatment with propranolol. The surgical correction of diaphragmatic eventration was crucial to a better outcome. PMID:23964040

  3. Multiple Haemangiomas, Diaphragmatic Eventration and Beckwith-Wiedemann Syndrome: An Unusual Association

    OpenAIRE

    Francisco, T.; Gonçalves, RM; Borges, C; Neto, MT

    2013-01-01

    A 6-month-old girl with Beckwith-Wiedemann syndrome, multiple haemangiomas (axillary, laryngeal, pulmonary and hepatic) and diaphragmatic eventration was reported. All tumours responded to treatment with propranolol. The surgical correction of diaphragmatic eventration was crucial to a better outcome.

  4. Beckwith-Wiedemann syndrome and bilateral adrenal pheochromocytoma: sonography and MRI findings

    Energy Technology Data Exchange (ETDEWEB)

    Baldisserotto, Matteo; Peletti, Adriana Barcellos; Araujo, Manoel Angelo de; Pertence, Ana Paula Cardoso; Dora, Marcelo Dourado; Maciel, Elines Oliva; Gaiger, Ana Maria [Hospital da Crianca Conceicao, Departamento de Radiologia, Porto Alegre, RS (Brazil)

    2005-11-01

    Beckwith-Wiedemann syndrome is characterized by a group of clinical abnormalities, the most frequent of which are omphalocele, macroglossia, gigantism, neonatal hypoglycemia and umbilical hernia. The association of this syndrome with malignant tumors is well documented. We report a child with this syndrome associated with bilateral adrenal pheochromocytoma. (orig.)

  5. Host plant record for the fruit flies, Anastrepha fumipennis and A. nascimentoi (Diptera, Tephritidae).

    Science.gov (United States)

    Uramoto, Keiko; Martins, David S; Lima, Rita C A; Zucchi, Roberto A

    2008-01-01

    The first host plant record for Anastrepha fumipennis Lima (Diptera: Tephritidae) in Geissospermum laeve (Vell.) Baill (Apocynaceae) and for A. nascimentoi Zucchi found in Cathedra bahiensis Sleumer (Olacaceae) was determined in a host plant survey of fruit flies undertaken at the "Reserva Natural da Companhia Vale do Rio Doce". This reserve is located in an Atlantic Rain Forest remnant area, in Linhares county, state of Espírito Santo, Brazil. The phylogenetic relationships of Anastrepha species and their hosts are discussed. The occurrence of these fruit fly species in relation to the distribution range of their host plants is also discussed. PMID:20302458

  6. Biology of Anastrepha grandis (Diptera: Tephritidae) in Different Cucurbits.

    Science.gov (United States)

    Bolzan, Anderson; Nava, Dori E; Garcia, Flávio R M; Valgas, Ricardo A; Smaniotto, Giovani

    2015-06-01

    Anastrepha grandis (Macquart) (Diptera: Tephritidae) is one of the main pests of cucurbits in Brazil. Losses occur due to the damage caused to the fruits and the embargo on exports, as A. grandis is considered a quarantine pest in countries that import Brazilian cucurbits. This study aimed to evaluate the development of A. grandis in hosts of the Cucurbitaceae family. The hosts used were stem squash (Cucurbita pepo L.), squash (Cucurbita moschata Duchesne), chayote [Sechium edule (Jacq.) Swartz], mini watermelon [Citrullus lanatus (Thunb.) Matsum & Nakai], Spanish melon (Cucumis melo L.), hybrid squash "Tetsukabuto" (C. moschata×Cucurbita maxima Duchesne), and salad cucumber (Cucumis sativus L.). We evaluated the viability and duration of egg-to-pupa period, pupal weight, sex ratio, and average number of pupae per fruit under controlled conditions of temperature, relative humidity, and photophase. The preoviposition and oviposition periods, fecundity, fertility, and longevity of females were determined for adults. Hosts of the genus Cucurbita provided a better development of A. grandis in comparison with other hosts, and presented a greater number of insects on fruit as well as higher infestation rate. Fecundity and longevity were also higher for females that developed in hosts of the genus Cucurbita, although values of these biological parameters varied between stem squash, squash, hybrid squash "Tetsukabuto." PMID:26470226

  7. RESPONSE OF ANASTREPHA SUSPENSA TO LIQUID PROTEIN BAITS AND SYNTHETIC LURE FORMULATIONS

    Science.gov (United States)

    The host list for the Caribbean fruit fly, Anastrepha suspensa (Loew), includes nearly 100 fruit trees including citrus. In south Florida, it is primarily a pest of dooryard fruit trees including Surinam cherry, Eugenia uniflora; loquat, Eriobotrya japonica; and tropical almond, Terminalia catappa;...

  8. Effect of continuous rearing on courtship acoustics of five braconid parasitoids, candidates for augmentative biological control of Anastrepha species

    Science.gov (United States)

    The courtship acoustics of five species of parasitoid wasps (Hymenoptera: Braconidae), potential candidates for augmentative biological control of Anastrepha species (Diptera: Tephritidae), were compared between recently colonized individuals and those continuously reared 70-148 generations. During...

  9. Two new Southern African Apatomyza Wiedemann (Diptera, Bombyliidae, Crocidiinae with discussion on their phylogenetic position

    Directory of Open Access Journals (Sweden)

    Carlos José Einicker Lamas

    2005-01-01

    Full Text Available Two new species of Apatomyza Wiedemann from South Africa, A. whocantell spec. nov. and A. angusticephala spec. nov., are described, illustrated, and placed within the most recent key to species. Into the data matrix recently used to infer a phylogenetic hypothesis for the subfamily, were added the two new taxa, in order to verify their position and relationships. They form the most apical clade in Apatomyza.Duas novas espécies de Apatomyza Wiedemann da África do Sul, A. whocantell spec. nov. e A. angusticephala spec. nov., são descritas, ilustradas, e incluídas na mais recente chave para espécies. Na matriz de dados recentemente utilizada para inferir a hipótese filogenética da subfamília, foram adicionados os dois novos táxons, visando verificar sua posição e relacionamento. Elas formam o clado mais apical em Apatomyza.

  10. Two sibs with Wiedemann-Rautenstrauch syndrome: possibilities of prenatal diagnosis by ultrasound.

    Science.gov (United States)

    Castiñeyra, G; Panal, M; Lopez Presas, H; Goldschmidt, E; Sánchez, J M

    1992-01-01

    A girl with Wiedemann-Rautenstrauch syndrome was born to a non-consanguineous couple. During the pregnancy, growth retardation particularly in the biparietal and abdominal diameters but not the femoral length was detected through serial ultrasound scans. When the woman became pregnant again, in spite of having been assessed as having a 25% risk of recurrence, the prenatal findings seen in her previous pregnancy led us to suggest sequential echography and a similar pattern of growth retardation was shown. After termination, the male fetus was found to be affected by Wiedemann-Rautenstrauch syndrome. This case shows that ultrasound examination can be a useful tool in the prenatal diagnosis of this rare, autosomal recessive syndrome. Images PMID:1619643

  11. Description of the pupal case of Systropus (Systropus) nitidus Wiedemann, 1830 (Diptera, Bombyliidae, Toxophorinae, Systropodini)

    OpenAIRE

    Paula Fernanda Motta Rodrigues; Carlos José Einicker Lamas

    2009-01-01

    The pupal case of Systropus (Systropus) nitidus Wiedemann reared from an unidentified tipical Limacodidae (Lepidoptera) cocoon is described and illustrated for the first time. Only species of Limacodidae are recorded as host of the immature stages of S. (Systropus). The geographical distribution of S. (Systropus) nitidus is restricted to Brazil, from Pará to Santa Catarina states. This is the first pupal case description and illustration of a Neotropical species of the subgenus Systropus.O pu...

  12. Oral polyp as the presenting feature of Beckwith-Wiedemann syndrome in a child.

    Science.gov (United States)

    Kujan, Omar; Raheel, Syed Ahmed; King, David; Iqbal, Fareed

    2015-01-01

    Beckwith-Wiedemann syndrome (BWS) is a congenital growth disorder characterised by abdominal wall defects, macroglossia and somatic gigantism. A number of associated features, including gastrointestinal and urinary tract polyps, have been described, but there are no previous reports of oral polyps occurring in this syndrome. We describe the first case of BWS presenting with an oral polyp. Clinicians should be alert to the possibility of BWS if other features of the syndrome are present, in children with oral polyps. PMID:26323977

  13. Prenatal sonographic findings of Beckwith-Wiedemann syndrome: A case report

    Energy Technology Data Exchange (ETDEWEB)

    Yoon, Won Sang; Lee, Jee Young; Lee, Yeon Hee [Dankook University Hospital, Chonan (Korea, Republic of)

    2000-03-15

    The Backwith-Wiedemann syndrome (BWS) is and unusual complex with variable clinical features. Major findings included defects in the abdominal wall, macroglossia and macrosomia. These features should be amenable to prenatal ultrasound detection. Serious complications are possible in the neonatal period, which may result from the hypoglycemia or the airway obstruction due to macroglossia. Accurate prenatal diagnosis allows optimum prenatal care and prevention of serious complications. We report a case of prenatally diagnosed BWS with omphalocele, macroglossia, nephromegaly and hepatic cyst.

  14. Long-term follow-up in Stuve–Wiedemann syndrome: a clinical report

    OpenAIRE

    Gaspar, I; Saldanha, T; Cabral, P.; Vilhena, M; Tuna., M.; Costa, C.; Dagoneau, N.; Daire, V; Hennekam, R

    2008-01-01

    Stuve-Wiedemann syndrome (SWS) is an autosomal recessively inherited disorder that is usually associated with high mortality in the neonatal period. Eleven cases have been published with prolonged survival, the oldest being 16 years. This phenotype is characterized by progressive skeletal anomalies including short stature, severe spinal deformities, bowing of the long bones, contractures and spontaneous fractures, and by neurological features that resemble dysautonomia. Here we report on the ...

  15. Evaluating mating compatibility within fruit fly cryptic species complexes and the potential role of sex pheromones in pre-mating isolation

    Science.gov (United States)

    Juárez, M. Laura; Devescovi, Francisco; Břízová, Radka; Bachmann, Guillermo; Segura, Diego F.; Kalinová, Blanka; Fernández, Patricia; Ruiz, M. Josefina; Yang, Jianquan; Teal, Peter E.A.; Cáceres, Carlos; Vreysen, Marc J.B.; Hendrichs, Jorge; Vera, M. Teresa

    2015-01-01

    Abstract The study of sexual behavior and the identification of the signals involved in mate recognition between con-specifics are key components that can shed some light, as part of an integrative taxonomic approach, in delimitating species within species complexes. In the Tephritidae family several species complexes have received particular attention as they include important agricultural pests such as the Ceratitis fasciventris (Bezzi), Ceratitis anonae (Graham) and Ceratitis rosa Karsch (FAR) complex, the Bactrocera dorsalis (Hendel) complex and the Anastrepha fraterculus (Wiedemann) complex. Here the value and usefulness of a methodology that uses walk-in field cages with host trees to assess, under semi-natural conditions, mating compatibility within these complexes is reviewed, and the same methodology to study the role of chemical communication in pre-mating isolation among Anastrepha fraterculus populations is used. Results showed that under the same experimental conditions it was possible to distinguish an entire range of different outcomes: from full mating compatibility among some populations to complete assortative mating among others. The effectiveness of the methodology in contributing to defining species limits was shown in two species complexes: Anastrepha fraterculus and Bactrocera dorsalis, and in the case of the latter the synonymization of several established species was published. We conclude that walk-in field cages constitute a powerful tool to measure mating compatibility, which is also useful to determine the role of chemical signals in species recognition. Overall, this experimental approach provides a good source of information about reproductive boundaries to delimit species. However, it needs to be applied as part of an integrative taxonomic approach that simultaneously assesses cytogenetic, molecular, physiological and morphological traits in order to reach more robust species delimitations. PMID:26798257

  16. Diversity and seasonality of fruit flies (Diptera: Tephritidae and Lonchaeidae) and their parasitoids (Hymenoptera: Braconidae and Figitidae) in orchards of guava, loquat and peach

    Energy Technology Data Exchange (ETDEWEB)

    Souza-Filho, M.F.; Raga, A. [Instituto Biologico, Campinas, SP (Brazil)], e-mail: miguelf@biologico.sp.gov.br; Azevedo-Filho, J.A. [Agencia Paulista de Tecnologia dos Agronegocios (APTA), Monte Alegre do Sul, SP (Brazil). Polo Regional do Leste Paulista; Strikis, P.C. [Universidade Estadual de Campinas (UNICAMP), SP (Brazil). Inst. de Biologia. Dept. de Parasitologia; Guimaraes, J.A. [EMBRAPA Agroindustria Tropical, Fortaleza, CE (Brazil); Zucchi, R.A. [Escola Superior de Agricultura Luiz de Queiroz (ESALQ/USP), Piracicaba, SP (Brazil). Dept. de Entomologia, Fitopatologia e Zoologia Agricola

    2009-02-15

    This work was carried out in orchards of guava progenies, and loquat and peach cultivars, in Monte Alegre do Sul, SP, Brazil, in 2002 and 2003. Guavas and loquats were bagged and unbagged bi-weekly and weekly, respectively, for assessment of the infestation period. Peach was only bagged weekly. The assays started when the fruits were at the beginning of development, but still green. Ripe fruits were taken to the laboratory and placed individually into plastic cups. McPhail plastic traps containing torula yeast were hung from January 2002 to January 2004 to assess the fruit fly population in each orchard, but only the Ceratitis capitata population is here discussed. Five tephritid species were reared from the fruits: Anastrepha bistrigata Bezzi, A. fraterculus (Wiedemann), A. obliqua (Macquart), A. sororcula Zucchi, and C. capitata, in addition to six lonchaeid species: Neosilba certa (Walker), N. glaberrima (Wiedemann), N. pendula (Bezzi), N. zadolicha McAlpine and Steyskal, Neosilba sp. 4, and Neosilba sp. 10 (both species are in the process of being described by P. C. Strikis), as well as some unidentified Neosilba species. Ten parasitoid species were obtained from fruit fly puparia, of which five were braconids: Asobara anastrephae (Muesebeck), Doryctobracon areolatus (Szepligeti), D. brasiliensis (Szepligeti), Opius bellus Gahan, and Utetes anastrephae (Viereck), and five figitids: Aganaspis pelleranoi (Brethes), Dicerataspis grenadensis Ashmead, Lopheucoila anastrephae (Rhower), Leptopilina boulardi (Barbotin, Carlton and Kelner-Pillaut), and Trybliographa infuscata Diaz, Gallardo and Uchoa. Ceratitis capitata showed a seasonal behavior with population density peaking at the second semester of each year. Anastrepha and Neosilba species remained in the orchards throughout both years. (author)

  17. Diversity and seasonality of fruit flies (Diptera: Tephritidae and Lonchaeidae) and their parasitoids (Hymenoptera: Braconidae and Figitidae) in orchards of guava, loquat and peach

    International Nuclear Information System (INIS)

    This work was carried out in orchards of guava progenies, and loquat and peach cultivars, in Monte Alegre do Sul, SP, Brazil, in 2002 and 2003. Guavas and loquats were bagged and unbagged bi-weekly and weekly, respectively, for assessment of the infestation period. Peach was only bagged weekly. The assays started when the fruits were at the beginning of development, but still green. Ripe fruits were taken to the laboratory and placed individually into plastic cups. McPhail plastic traps containing torula yeast were hung from January 2002 to January 2004 to assess the fruit fly population in each orchard, but only the Ceratitis capitata population is here discussed. Five tephritid species were reared from the fruits: Anastrepha bistrigata Bezzi, A. fraterculus (Wiedemann), A. obliqua (Macquart), A. sororcula Zucchi, and C. capitata, in addition to six lonchaeid species: Neosilba certa (Walker), N. glaberrima (Wiedemann), N. pendula (Bezzi), N. zadolicha McAlpine and Steyskal, Neosilba sp. 4, and Neosilba sp. 10 (both species are in the process of being described by P. C. Strikis), as well as some unidentified Neosilba species. Ten parasitoid species were obtained from fruit fly puparia, of which five were braconids: Asobara anastrephae (Muesebeck), Doryctobracon areolatus (Szepligeti), D. brasiliensis (Szepligeti), Opius bellus Gahan, and Utetes anastrephae (Viereck), and five figitids: Aganaspis pelleranoi (Brethes), Dicerataspis grenadensis Ashmead, Lopheucoila anastrephae (Rhower), Leptopilina boulardi (Barbotin, Carlton and Kelner-Pillaut), and Trybliographa infuscata Diaz, Gallardo and Uchoa. Ceratitis capitata showed a seasonal behavior with population density peaking at the second semester of each year. Anastrepha and Neosilba species remained in the orchards throughout both years. (author)

  18. Experiments of attractants for Anastrepha striata in Costa Rica

    International Nuclear Information System (INIS)

    The experiments were carried out in several orchards that are hosts of anastrepha striata (diptera: tephritidae). The orchards are: (1) grecia canton (year 2001) which is a mix coffee and orange orchard, (2) esparza canton (2002 and 2003) which is a mango orchard, (3) pocora (2002 and 2004) which is a guava orchard, and 4) corralar (2002 and 2004) which is also a mixed coffee and orange orchard. The purpose was to determine the responses of the guava fruit fly a. Striata to seven attractants: (a) nulure, (b) ammonium acetate (aa) at a release rate of 150μg nh4/hour + putrescine (pt), (c) aa at 300μg nh4/hour + pt, d) aa at 600μg nh4/hour +pt, e) ammonium bicarbonate (ab) at 300μg nh4/hour + pt, f) aa at 300μg nh4/hour + pt + trimethylamine and g) torula yeast. Each experiment lasted eight weeks, with a change of the attractants every four weeks and biweekly collecting of the captured fruit flies and non-target insects. The data are expressed by means of flies per trap per day (ftd). In the experiment carried out in pocora (2004) and in corrralar (2002 and 2004) the highest ftd was obtained with nulure (0.92, 0.021 and 0.02, respectively). In esparza (2002) and pocora (2002) the largest ftd was obtained with torula (0.03 and 0.12, respectively) and the second best was nulure. In grecia (2001) and in esparza (2003) the best attractant was the mixture of ammonium acetate with putrescine. In grecia (2001), pocora (2004) and corralar (2002), the second best was torula yeast. Important information on the presence, abundance and fluctuation of a. Striata populations was obtained under diverse climatic conditions and crop phenology. This information serves as an important basis to continue studies on the effectiveness of trapping systems used against this fruit fly species and potential use of bait stations. (author)

  19. Efeitos das misturas de alguns alimentos na produção de óvulos em Anastrepha obliqua (Diptera, Tephritidae)

    OpenAIRE

    Creusa Maria Message; Fernando Sérgio Zucoloto

    1989-01-01

    Effect of mixtures of some foods on egg production in the fruit fly Anastrepha obliqua. Several diets based on mixtures of different foods (brewer's yeast Boneg, wheat germ Boneg and gevral Lederle) were tested for their effect on egg production in Anastrepha obliqua. The best results were obtained with the mixture of brewer's yeast and wheat germ.

  20. Efeitos das misturas de alguns alimentos na produção de óvulos em Anastrepha obliqua (Diptera, Tephritidae

    Directory of Open Access Journals (Sweden)

    Creusa Maria Message

    1989-01-01

    Full Text Available Effect of mixtures of some foods on egg production in the fruit fly Anastrepha obliqua. Several diets based on mixtures of different foods (brewer's yeast Boneg, wheat germ Boneg and gevral Lederle were tested for their effect on egg production in Anastrepha obliqua. The best results were obtained with the mixture of brewer's yeast and wheat germ.

  1. Sterility and Sexual Competitiveness of Tapachula-7 Anastrepha ludens Males Irradiated at Different Doses

    OpenAIRE

    Dina Orozco-Dávila; Maria de Lourdes Adriano-Anaya; Luis Quintero-Fong; Miguel Salvador-Figueroa

    2015-01-01

    A genetic sexing strain of Anastrepha ludens (Loew), Tapachula-7, was developed by the Mexican Program Against Fruit Flies to produce and release only males in programs where the sterile insect technique (SIT) is applied. Currently, breeding are found at a massive scale, and it is necessary to determine the optimum irradiation dose that releases sterile males with minimum damage to their sexual competitiveness. Under laboratory and field conditions, we evaluated the effects of gamma irradiati...

  2. Neurosecretory cells of third-instar larvae of Anastrepha obliqua Macquart (Diptera, Tephritidae

    Directory of Open Access Journals (Sweden)

    Isabel C Boleli

    1994-01-01

    Full Text Available Neurosecretory cells of the nervous system of third-instar larvae of Anastrepha obliqua Macquart, 1835 were located and described histomorphologically. Six groups of neurosecretory cells were identified in the brain and one group in the ventral ganglion. The groups differed in position, cell size and staining characteristics. Four of these groups appear to he active throughout the third instar and three, from the prepupal period.

  3. Karyotype relationships among Anastrepha bistrigata, A. striata and A. serpentina (Diptera, Tephritidae

    Directory of Open Access Journals (Sweden)

    Denise Selivon

    2007-01-01

    Full Text Available The species of Anastrepha are arranged into 17 intrageneric groups. Recently, it was proposed that two species of the striata group, Anastrepha striata and A. bistrigata, might be realocated to serpentina group. Anastrepha bistrigata and A. serpentina have an X1X2Y/X1X1 X2X2 sex chromosome system while A. striata has a XY/XX system. It was previously proposed that the karyotype of A. bistrigata could be derived from that of A. striata by an Y:A fusion, and that the karyotype of A. serpentina would be derived from another, hypothetical karyotype. In the present report sequential staining with DAPI and chromomycin A3 (CMA3, followed by C-banding, revealed that the C-banded heterochromatic blocks of the sex chromosomes of A. bistrigata have different affinities to fluorochromes in comparison to the chromosomes of A. striata, from which they have hypothetically derived. The chromosomes of A. serpentina show substantial differences in their cytochemical properties compared to their A. bistrigata and A. striata counterparts. The FISH technique showed that the ribosomal gene sequences are located in DAPI- or DAPI/CMA3-positive heterochromatic blocks of the sex chromosomes, one site on the Y chromosome and one site on the X chromosome (X1 in A. bistrigata and A. serpentina. The data suggest that the karyotype of A. striata and A. bistrigata could be derived from a common ancestral karyotype, while the A. serpentina karyotype probably has a distinct origin.

  4. Predation of Fruit Fly Larvae Anastrepha (Diptera: Tephritidae by Ants in Grove

    Directory of Open Access Journals (Sweden)

    W. D. Fernandes

    2012-01-01

    Full Text Available Based on evidence that ants are population regulatory agents, we examined their efficiency in predation of fruit fly larvae Anastrepha Schiner, 1868 (Diptera: Tephritidae. Hence, we considered the differences among species of fruit trees, the degree of soil compaction, and the content of soil moisture as variables that would explain predation by ants because these variables affect burying time of larvae. We carried out the experiment in an orchard containing various fruit bearing trees, of which the guava (Psidium guajava Linn., jaboticaba (Myrciaria jaboticaba (Vell. Berg., and mango trees (Mangifera indica Linn. were chosen for observations of Anastrepha. We offered live Anastrepha larvae on soil beneath the tree crowns. We observed for 10 min whether ants removed the larvae or the larvae buried themselves. Eight ant species were responsible for removing 1/4 of the larvae offered. The Pheidole Westwood, 1839 ants were the most efficient genus, removing 93% of the larvae. In compacted and dry soils, the rate of predation by ants was greater. Therefore, this study showed that ants, along with specific soil characteristics, may be important regulators of fruit fly populations and contribute to natural pest control in orchards.

  5. Biology studies and improvement of Ceratitis capitata (Wiedemann) mass trapping control technique

    OpenAIRE

    Peñarrubia María, Esther

    2010-01-01

    Ceratitis capitata (Wiedemann) (mosca de la fruita), està considerada a nivell mundial com una de les plagues més destructives de fruits degut a la seva elevada capacitat de causar danys en la producció, la seva distribució global i al seu ampli rang d‟hostes. S‟ha desenvolupat un model eficaç de control integrat de plagues (IPM), que ha estat acceptat a Europa com estratègia de protecció vegetal per a una agricultura sostenible. L‟objectiu del present treball va ser l‟...

  6. First record of fruit fly, Dacus longicornis Wiedemann (Diptera: Tephritidae) from Bangladesh

    International Nuclear Information System (INIS)

    The presence of Dacus (Callantra) longicornis Wiedemann (Diptera: Tephritidae) was detected for the first time in Bangladesh. An adult male fly was collected on 27th July, 2008 from small kitchen garden of Ganakbari, Savar area, containing various cucurbit crops viz., Cucurbita maxima (D.), Trichosanthus cucumerina (L.), Luffa acutungula (L.) etc. using a Mcphail trap baited with cue-lure. The fruit fly specimen were distinguished by the presence of a red-brown scutum, anatergite fuscous, face with a pair of black spots, abdomen petiolate with elongated abdominal tergite-1, cells bc and c fuscous, costal band overlapping R4+5, and absence of fore femoral spines. (author)

  7. Description of the pupal case of Systropus (Systropus nitidus Wiedemann, 1830 (Diptera, Bombyliidae, Toxophorinae, Systropodini

    Directory of Open Access Journals (Sweden)

    Paula Fernanda Motta Rodrigues

    2009-01-01

    Full Text Available The pupal case of Systropus (Systropus nitidus Wiedemann reared from an unidentified tipical Limacodidae (Lepidoptera cocoon is described and illustrated for the first time. Only species of Limacodidae are recorded as host of the immature stages of S. (Systropus. The geographical distribution of S. (Systropus nitidus is restricted to Brazil, from Pará to Santa Catarina states. This is the first pupal case description and illustration of a Neotropical species of the subgenus Systropus.O pupário de Systropus (Systropus nitidus Wiedemann, originado de uma crisálida não identificada típica de Limacodidae (Lepidoptera, é descrito e ilustrado pela primeira vez. Somente espécies de Limacodidae são registradas como hospedeiros de estágios imaturos de S. (Systropus. A distribuição geográfica de S. (Systropus nitidus é restrita ao Brasil, do estado do Pará ao de Santa Catarina. Esta é a primeira descrição e ilustração de pupário de uma espécie Neotropical do subgênero Systropus.

  8. Lipidosis with a predominant storage of phosphoglycerides (phospholipidosis type II--Baar, Wiedemann).

    Science.gov (United States)

    Elleder, M; Smíd, F; Kohn, R

    1975-01-01

    A case of a 27 month old girl suffering from a rare form of lipidosis is described. Clinical symtoms consisted of a moderate hepatosplenomegaly and a progressive psychomotor retardation. Bioptical examination of the liver, appendix and skin revealed a pronounced lipid storage in histiocytes, hepatocytes, vascular endothelium and in peripheral nervous system. Histochemically, a generalized storage of phosphoglycerides and cholesterol was found. It was accompanied with a moderate amount of sphingomyelin and a variable amount of glycolipids (predominantly glycosphingolipids), the latter being stored mainly in the peripheral nervous system and in the vascular endothelium. Chromatographically, an increased concentration of lysobisphosphatidic acid and cholesterol could be detected. The ultrastructure of storage cytosomes was rather pleomorphic often with concentrically lamellar appearance. Further details of the investigation are described and the relation of this case to those described by Baar and Hickmans (1956) and Wiedemann et al. (1972) is stressed. Due to a strong evidence that this group of diseases represents a new type of phospholipid storage disease the name "Phospholipidosis Type II" (Baar-Wiedemann) or "Phosphoglyceridosis" is proposed, whereas "Phospholipidosis Type I" or "Sphingomyelinosis" should be reserved for the classical Niemann-Pick complex. PMID:804753

  9. Osseous abnormalities and CT findings in stueve-wiedemann-syndrome (SWS); Ossaere Manifestationen und CT-Befunde bei der seltenen Skelettdysplasie Stueve-Wiedemann (SWS)

    Energy Technology Data Exchange (ETDEWEB)

    Langer, R. [UAE University, Dept. of Radiology, Al Ain (United Arab Emirates); Al-Gazali, L. [UAE University, Dept. of Paediatrics (United Arab Emirates); Haas, D. [FMHS - UAE Univ. and Tawam Hospital - Dept. of Radiology (United Arab Emirates); Raupp, P.; Varady, E. [Dept. of Paediatrics Al Ain (United Arab Emirates)

    2004-02-01

    Purpose: analysis of typical conventional radiological and CT findings in our group of patients with the rare skeletal dysplasia Stueve-Wiedemann-Syndrome (SWS) and comparison with published data. Materials and methods: in 16 newborns with clinically dysmorphic features, dwarfism, and bowed limbs, radiographs of the chest and skeleton were obtained for classification of the underlying skeletal dysplasia. For the first time, computed tomography was performed for further investigation of midface hypoplasia. The early diagnosis of SWS could be made by correlation of the radiological and clinical findings. For evaluation of progression, follow-up radiological examinations of the skeleton were performed in four children surviving infancy. Results: clinically, the newborns with SWS showed dwarfisms, midface hypoplasia, bowed extremities with contractures and had severe problems with respiration, feeding, and swallowing as well as episodes of hyperthermia. Skeletal radiographs revealed bowing of the long tubular bones, most pronounced at the lower extremities. Additional findings were internal triangular cortical diaphyseal thickening at the concave side of the bowing, wide metaphyses with abnormal trabecular pattern and radiolucencies. Four patients survived infancy. Clinically, they suffered from recurrent aspiration pneumonia and recurrent episodes of hyperthermia as well as form cutaneous and mucosal infections. The follow-up radiographs showed progressive bowing of the long tubular bones as well as progressive metaphyseal decalcification. Conclusions: skeletal abnormalities in SWS are so characteristic that an early post partum diagnosis can be made. However, a close cooperation between radiologists, clinicians, and geneticists is required for correlation of clinical and radiological findings. The few cases that survive infancy have progressing orthopaedic problems. (orig.) [German] Ziel: Die typischen radiologischen und CT-Befunde beim kongenitalen Stueve-Wiedemann

  10. Pos-harvest control of Ceratitis capitata (Wiedemann, 1824) (Diptera: Tephritidae) in guava fruits (Psidium guajava L.)

    International Nuclear Information System (INIS)

    The objective of this work is to evaluate the effect of the treatment with steam heating, hot water and gamma radiation of Co-60 on eggs and fruit flies larvae (Ceratitis capitata Wiedemann, 1824) (Diptera: Tephritidae), and analyze the effect of these treatments in the fruit quality (chemical composition)

  11. INSETICIDAS VEGETAIS NO CONTROLE DE Anastrepha spp. (DIPTERA: TEPHRITIDAE EM POMAR DE GOIABA

    Directory of Open Access Journals (Sweden)

    Francisco Roberto Azevedo

    2013-09-01

    Full Text Available Objetivando avaliar os efeitos de inseticidas vegetais sobre Anastrepha spp. em pomar de goiaba, realizaram-se pesquisas em Barbalha, de 6 de maio a 24 de junho de 2011, testando Pironat®, Rotenat® e Natuneem®. Para avaliar o efeito sobre adultos, instalaram-se 20 armadilhas McPhail iscadas com proteína hidrolisada de milho a 5%, quantificando-se o número de insetos capturados. Na avaliação do efeito sobre larvas, colheram-se ao acaso 100 frutos maduros, verificando-se a presença de larvas vivas e mortas. Foram feitas três aplicações em ambos os experimentos com o auxílio de um atomizador costal motorizado, sendo as avaliações realizadas semanalmente. O extrato pirolenhoso do Pironat® repele satisfatoriamente adultos de Anastrepha spp., enquanto que a azadiractina presente no Natuneem® promove efeito inseticida sobre as larvas nas condições de campo, sendo estes produtos mais eficazes para o controle da praga a partir da segunda aplicação. Embora estes produtos vegetais não cheguem a causar 100% de controle, eles podem ser utilizados em programas de Manejo Agroecológico de Anastrepha spp. em pomares de goiaba, pois além de baratos, são de fácil aplicação e não provocam impacto ambiental em termos de risco de resíduos tóxicos nos frutos. Use este espaço para escrever o resumo.

  12. Parasitóides (Hymenoptera: Braconidae de Anastrepha Schiner (Diptera: Tephritidae no estado do Acre Parasitoids (Hymenoptera: Braconidae of Anastrepha Schiner (Diptera: Tephritidae in the state of Acre, Brazil

    Directory of Open Access Journals (Sweden)

    Marcílio José Thomazini

    2009-03-01

    Full Text Available Este trabalho relata a primeira ocorrência de parasitóides em moscas-das-frutas do gênero Anastrepha Schiner no estado do Acre. No município de Bujari foram encontrados os braconídeos Opius bellus Gahan (72,5%, Doryctobracon areolatus (Szépligeti (26,8% e Utetes anastrephae (Viereck (0,7% associados a A. obliqua (Macquart em frutos de taperebá (Spondias mombin L., com parasitismo de 29,5%. No município de Rio Branco, em frutos de goiaba (Psidium guajava L., ocorreu somente D. areolatus em A. obliqua com parasitismo de 2,7%.This paper records the first parasitoids occurrence on Anastrepha Schiner fruit flies in the state of Acre, Brazil. In the Bujari County there occurred the braconids Opius bellus Gahan (72.5%, Doryctobracon areolatus (Szépligeti (26.8% e Utetes anastrephae (Viereck (0.7% associated with A. obliqua (Macquart in tapereba fruits (Spondias mombin L., with parasitism of 29.5%. In guajava fruits (Psidium guajava L. at Rio Branco County, only D. areolatus on A. obliqua occurred, with parasitism of 2.7%.

  13. Egg length of Anastrepha obliqua Macquart (Diptera, Tephritidae according to oviposition rate and maternal age

    Directory of Open Access Journals (Sweden)

    Isabel C. Boleli

    1992-01-01

    Full Text Available The length of the entire egg, micropile and vitellus regions of Anastrepha obliqua Macquart, 1835 were measured during all opposition period. Obtained values were compared among them and with oviposition rate. The smallest eggs were produced during the first 35 oviposition days, period where the highest oviposition rate occured. The decrease in egg length was found to be due to a descrease in the vitellus region. Micropile length was found to be pratically constant throughout oviposition. Furthermore, no relationship between maternal age and length was detectable.

  14. Influence of methoprene and dietary protein on maturation and sexual performance of sterile, Anastrepha ludens (Diptera: Tephritidae)

    Science.gov (United States)

    Juvenile hormone levels and adult diet have important effects on the attractiveness and competitiveness of the male Anastrepha ludens (Loew) (Mexican fruit fly). Since the success of the sterile insect technique requires the release of males that can compete in the wild, these effects are very impor...

  15. Comparison of Hydrolyzed Protein Baits and Various Grape Juice Products as Attractants for Anastrepha Fruit Flies (Diptera: Tephritidae).

    Science.gov (United States)

    Herrera, F; Miranda, E; Gómez, E; Presa-Parra, E; Lasa, R

    2016-02-01

    Mexican fruit flies, Anastrepha ludens (Loew; Diptera: Tephritidae), have traditionally been trapped in citrus orchards in Mexico using protein hydrolysates as bait. Recently, CeraTrap(®), an enzymatic hydrolyzed protein, has emerged as an effective lure for monitoring A. ludens at the orchard level and is currently being used by growers in the region of Veracruz. Several studies have revealed that grape juice is highly attractive to A. ludens, and recent work supports its potential use for regulation purposes. In our study, the attraction of A. ludens to different grape products was evaluated in citrus orchards and in comparison to other Anastrepha species in an area composed of mango and chicozapote orchards. Attraction to grape lures was compared with CeraTrap and the standard protein Captor +borax trap. In general, CeraTrap was more attractive than different commercial grape products in several experiments. Only Jumex, a commercial grape juice, did not differ significantly from CeraTrap in the capture of A. ludens males and females in a citrus crop. However, several drawbacks were detected when using Jumex grape juice: 1) higher tendency to capture males, 2) less selectivity against non-targeted insects, 3) higher capture of beneficial lacewings, and iv) the need to re-bait weekly owing to lower stability. In the area containing mango and chicozapote, CeraTrap was more attractive than Captor + borax for Anastrepha obliqua and Anastrepha serpentina, followed by grape juice products, which were the least attractive for these fruit fly species. PMID:26396199

  16. Ovarian thecal metaplasia of the adrenal gland in association with Beckwith-Wiedemann syndrome.

    Science.gov (United States)

    Wassal, Eslam Y; Habra, Mouhammed Amir; Vicens, Rafael; Rao, Priya; Elsayes, Khaled M

    2014-12-28

    Beckwith-Wiedemann syndrome (BWS) is an overgrowth syndrome associated with increased risk to develop malignancies including adrenocortical carcinoma. Ovarian thecal metaplasia of the adrenal gland is a rare tumor-like mesenchymal lesion in BWS patients that lacks detailed radiological description. We report a 17-year-old female patient with BWS, associated with bilateral Wilms tumor, hepatic hemangiomatosis, pancreatic neuroendocrine tumor, and a phyllodes tumor of the right breast. Surveillance abdominal ultrasound identified a right adrenal mass that was further characterized by computed tomography and magnetic resonance imaging. Radiologically, this mass displayed features that overlap with adrenocortical carcinoma and pheochromocytoma but after pathological examination this proved to be an ovarian thecal metaplasia of the adrenal gland. Adrenal masses in BWS should raise the suspicion for adrenocortical carcinoma though other adrenal tumors including ovarian thecal metaplasia can be seen in these patients. PMID:25550997

  17. Ovarian thecal metaplasia of the adrenal gland in association with Beckwith-Wiedemann syndrome

    Institute of Scientific and Technical Information of China (English)

    Eslam; Y; Wassal; Mouhammed; Amir; Habra; Rafael; Vicens; Priya; Rao; Khaled; M; Elsayes

    2014-01-01

    Beckwith-Wiedemann syndrome(BWS) is an overgrowth syndrome associated with increased risk to develop malignancies including adrenocortical carcinoma. Ovarian thecal metaplasia of the adrenal gland is a rare tumorlike mesenchymal lesion in BWS patients that lacks detailed radiological description. We report a 17-yearold female patient with BWS, associated with bilateral Wilms tumor, hepatic hemangiomatosis, pancreatic neuroendocrine tumor, and a phyllodes tumor of the right breast. Surveillance abdominal ultrasound identified a right adrenal mass that was further characterized by computed tomography and magnetic resonance imaging. Radiologically, this mass displayed features that overlap with adrenocortical carcinoma and pheochromocytoma but after pathological examination this proved to be an ovarian thecal metaplasia of the adrenal gland. Adrenal masses in BWS should raise the suspicion for adrenocortical carcinoma though other adrenal tumors including ovarian thecal metaplasia can be seen in these patients.

  18. Chiral symmetry breaking and violation of the Wiedemann-Franz law in underdoped cuprates

    International Nuclear Information System (INIS)

    We propose that the recently observed violation of the Wiedemann-Franz law in the normal state of underdoped cuprates is caused by spin-charge separation and dynamical chiral symmetry breaking in a (2+1)-dimensional system consisting of massless Dirac fermions, charged bosons, and a gauge field. While the d-wave spinon gap vanishes at the Fermi points, the nodal fermions acquire a finite mass due to strong gauge fluctuations. This mass provides a gap below which no free fermions can be excited. This implies that there is not a residual linear term for the thermal conductivity, in good agreement with experiments. Other physical implications of the chiral symmetry breaking are also discussed

  19. Acoustic Repertoire of the Philippine Tarsier (Tarsius syrichta fraterculus and Individual Variation of Long-Distance Calls

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    Milada Řeháková-Petrů

    2012-01-01

    Full Text Available We present the spectrographic description of the vocal repertoire of the Philippine tarsier (Tarsius syrichta fraterculus, a solitary living nocturnal primate for which a very limited information about acoustic communication exists to date. The majority of vocalizations were performed around sunset and, less frequently, at sunrise. We identified eight call types. Five calls recorded during communication between adults included three long-distance calls—loud call, smack-whistle, and whistle—then a soft locust-like chirp and a bird-like trill. Two other calls—cheep and twitter—were recorded during mother-infant communication. One distress call was emitted by adults during handling. All calls were performed in the 9752 Hz to more than 22 kHz frequency range. This study provides the first evidence of individual variation in the long-distance calls performed by tarsiers. Moreover, our study provides a basis for future comparison within as well as between tarsier species taxonomy. Bioacoustic methods can be used in monitoring of these cryptic species and determining their distribution range. Thus, bioacoustic studies can help to improve conservation strategies of different population/species.

  20. Uma nova espécie de Strebla Wiedemann, 1824 (Diptera, Streblidae, Streblinae sobre Anoura caudifer (E. Geoffroy, 1818 (Chiroptera, Phyllostomidae, Glossophaginae

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    Graciolli Gustavo

    2003-01-01

    Full Text Available A new species of Strebla Wiedemann, S. carvalhoi sp. nov., collected, on Anoura caudifer (E. Geoffroy, 1818 from Southern of Brazil, is described. Drawings of the postvertex, occipital plates, gonopods and tergite VII are provided.

  1. A checklist of the species of Anastrepha with the families of their host plants and hymenopteran parasitoids in Brazil

    International Nuclear Information System (INIS)

    Many surveys on fruit flies have already been carried out by several researchers in Brazil while others are still going on. Most of these surveys were conducted in areas where no studies had been previously done. With these surveys, new species and new records of species were found in Brazil. Also, in this decade, several surveys on fruit fly braconid parasitoids were conducted. These data have been summarised recently, because of the great interest in the biological control of fruit flies in Brazil. Research on eucoilid fruit fly parasitoids have been largely neglected. However, taxonomic studies are being conducted on eucoilids associated with frugivorous flies (Tephritidae and Lonchaeidae) in Brazil. All the data on fruit flies, host plants and hymenopteran parasitoids are unfortunately scattered in the literature and frequently are only published as dissertations or congress abstracts which are not widely available. Even when submitted for publication, papers take a long time to come out in Brazil. Consequently, it is very difficult to get a list of the Anastrepha species in Brazil, or to determine which host plant species are associated with them. These data are of particular interest in the case of economically important species, especially those considered as quarantine pests. Therefore, such a list is very useful for regulatory entomologists and pest management programmes by listing the Anastrepha species in Brazil and their associated host plants and hymenopteran parasitoids. The objective of this paper is to gather some available records of the Anastrepha species, their host plants and hymenopteran parasitoids (Braconidae and Eucoilidae) published in Brazil. Due to the space limitation of this paper, only families of the host plants of the Anastrepha species are presented. In fact, this work is part of a research which deals with the preparation of a database for the Anastrepha species in Brazil

  2. Tetracycline-suppressible female lethality and sterility in the Mexican fruit fly, Anastrepha ludens.

    Science.gov (United States)

    Schetelig, M F; Targovska, A; Meza, J S; Bourtzis, K; Handler, A M

    2016-08-01

    The sterile insect technique (SIT) involves the mass release of sterile males to suppress insect pest populations. SIT has been improved for larval pests by the development of strains for female-specific tetracycline-suppressible (Tet-off) embryonic lethal systems for male-only populations. Here we describe the extension of this approach to the Mexican fruit fly, Anastrepha ludens, using a Tet-off driver construct with the Tet-transactivator (tTA) under embryo-specific Anastrepha suspensa serendipity α (As-sry-α) promoter regulation. In the absence of tetracycline, tTA acts upon a Tet-response element linked to the pro-apoptotic cell death gene lethal effector, head involuation defective (hid), from A. ludens (Alhid(Ala2) ) that contains a sex-specific intron splicing cassette, resulting in female-specific expression of the lethal effector. Parental adults double-homozygous for the driver/effector vectors were expected to yield male-only progeny when reared on Tet-free diet, but a complete lack of oviposited eggs resulted for each of the three strains tested. Ovary dissection revealed nonvitellogenic oocytes in all strains that was reversible by feeding females tetracycline for 5 days after eclosion, resulting in male-only adults in one strain. Presumably the sry-α promoter exhibits prezygotic maternal expression as well as zygotic embryonic expression in A. ludens, resulting in a Tet-off sterility effect in addition to female-specific lethality. PMID:27135433

  3. [Robert Schweitzer. Eine Unveröffentlichte Quelle zur Schulgeschichte von Reval Ferdinand Wiedemanns Geschichte des Revaler Gouvernementsgymnasiums aus dem Jahr 1856] / Paul Kaegbein

    Index Scriptorium Estoniae

    Kaegbein, Paul

    2008-01-01

    Arvustus: Robert Schweitzer. Eine Unveröffentlichte Quelle zur Schulgeschichte von Reval Ferdinand Wiedemanns Geschichte des Revaler Gouvernementsgymnasiums aus dem Jahr 1856. - Buch und Bildung im Baltikum. Münster : LIT, 2005. lk. 495-525. Kubermangugümnaasiumi vanemõpetaja Ferdinand Wiedemann kirjutas 1856. aastal kooli ajaloo, mis mingitel põhjustel jäi avaldamata. Tema tööd on kasutanud 1881. aastal Gotthard von Hansen

  4. Parasitóides de Peckia chrysostoma (Wiedemann, 1830 (Diptera: Sarcophagidae coletados em pupários no substrato rim bovino Parasitoids of Peckia chrysostoma (Wiedemann, 1830 (Diptera: Sarcophagidae collected in pupae in the bovine kidney

    Directory of Open Access Journals (Sweden)

    Jean Patrick Bonani

    2006-04-01

    Full Text Available Objetivou-se com este estudo, identificar as principais espécies de parasitóides de Peckia chrysostoma (Wiedemann, 1830 (Diptera: Sarcophagidae, em Lavras, Minas Gerais, Brasil, cujas larvas foram alimentadas com rim bovino. As coletas foram realizadas durante o período de agosto de 2003 a março de 2004. Um total de 921 parasitóides foram coletados em 942 pupas dessa mosca. A prevalência natural de parasitismo foi de 97%.The study aimed at identifying the main parasitoids of Peckia chrysostoma (Wiedemann, 1830 (Diptera: Sarcophagidae. The larvae were feed on bovine kidney. Samplings were conducted from August 2003 to March 2004, in Lavras, Minas Gerais State, Brazil. A total of 921 parasitoids in 942 pupae fly were collected. The prevalence natural parasitism was 97%.

  5. Primeiro relato de Spalangia nigroaenea Curtis, 1839 (Hymenoptera: pteromalidae em pupas de fannia pusio (Wiedemann, 1830 (Diptera: fanniidae no Brasil First report of Spalangia nigroaenea Curtis, 1839 (Hymenoptera: Pteromalidae in pupae of Fannia pusio (Wiedemann, 1830 (Diptera: Fanniidae in Brazil

    Directory of Open Access Journals (Sweden)

    Carlos Henrique Marchiori

    2008-10-01

    Full Text Available Relata-se a primeira ocorrência do parasitóide Spalangia nigroaenea Curtis, 1839 (Hymenoptera: Pteromalidae em pupas de Fannia pusio (Wiedemann, 1830 (Diptera: Fanniidae, no Brasil. Pupas de F. pusio foram coletadas em armadilhas utilizando-se fezes humanas como atrativo para os adultos. Obtiveram-se 10 pupas, das quais duas estavam parasitadas por S. nigroaenea, verificando-se uma porcentagem de parasitismo de 20,0%.The first occurrence in Brazil of the parasitoid Spalangia nigroaenea Curtis, 1839 (Hymenoptera: Pteromalidae in pupae of Fannia pusio (Wiedemann, 1830 (Diptera: Fanniidae is reported. Pupae of F. pusio were collected in traps using human feces to attract the adults. Ten pupae were obtained, of which two were parasitized by S. nigroaenea, thus demonstrating a parasitism rate of 20.0%.

  6. Sjögren, Wiedemann ja liivi keele sõnaraamat. Panus 19. sajandi teadusajalukku / Eberhard Winkler

    Index Scriptorium Estoniae

    Winkler, Eberhard, 1955-

    2009-01-01

    Uuritakse, milline võis olla kummagi teadlase osa esimese liivi keele sõnaraamatu koostamisel: Sjögren, Andreas Johan. Gesammelte Schriften. Band II. Theil I., Joh. Andreas Sjögren's Livische Grammatik nebst Sprachproben ; Band II. Theil II., Joh. Andreas Sjögren's livisch-deutsches und deutsch-livisches Wörterbuch / bearbeitet von Ferdinand Joh. Wiedemann. St. Petersburg, 1861

  7. Natural Enemies of Chrysomya albiceps (Wiedemann) (Diptera: Calliphoridae) Collected in States Goiás and Minas Gerais, Brazil

    OpenAIRE

    C.H. Marchiori

    2014-01-01

    Chrysomya albiceps (Wiedemann) (Diptera: Calliphoridae) is of great medical importance because it produces myiasis. It has a significant role as a predator of other dipterous larvae. Moreover, this dipterous insect is of great importance with regard to public health because it mechanically carries pathogens to humans. This study had the objective of ascertaining the species of parasitoids of C. albiceps in human feces, cattle liver, cattle kidney, chicken viscera, fish and pig carcasses in Go...

  8. Influence of different tropical fruits on biological and behavioral aspects of the Mediterranean fruit fly Ceratitis capitata (Wiedemann) (Diptera, Tephritidae)

    OpenAIRE

    2011-01-01

    Influence of different tropical fruits on biological and behavioral aspects of the Mediterranean fruit fly Ceratitis capitata (Wiedemann) (Diptera, Tephritidae). Studies on Ceratitis capitata, a world fruit pest, can aid the implementation of control programs by determining the plants with higher vulnerability to attacks and plants able to sustain their population in areas of fly distribution. The objective of the present study was to evaluate the influence of eight tropical fruits on the fol...

  9. Flutuação populacional de moscas-das-frutas em pomares de citros no oeste de Santa Catarina, Brasil Population fluctuation of fruit flies in citrus orchards in the West of Santa Catarina, Brazil

    Directory of Open Access Journals (Sweden)

    Luís Antônio Chiaradia

    2004-04-01

    Full Text Available As moscas-das-frutas (Diptera, Tephritidae causam danos econômicos em muitas frutíferas. Para conhecer a flutuação populacional destas moscas em pomares de citros da região Oeste de Santa Catarina, Brasil, e estudar as interferências de fatores climáticos sobre estes insetos, cinco frascos "caça-mosca", tendo vinagre de vinho tinto a 25% como atrativo, foram semanalmente instalados em dois pomares de laranjeiras da variedade Valência, em Águas de Chapecó e Chapecó, no período de outubro de 1999 a setembro de 2001. As moscas capturadas nas armadilhas foram triadas no Laboratório de Fitossanidade da Epagri de Chapecó. Análises de correlação e regressão polinomial foram realizadas entre o número mensal de moscas do gênero Anastrepha e os dados mensais de precipitação pluviométrica, insolação, umidade relativa do ar, velocidade do vento e temperatura ambiente. Temperatura máxima e mínima mostraram interferir na população destas moscas mais do que os outros fatores climáticos. O número mensal acumulado de moscas capturadas foi submetido à análise de regressão não linear, que revelou picos de captura destes insetos de março a junho. Anastrepha fraterculus (Wiedemann, 1830 predominou sobre outras espécies de moscas-das-frutas.Fruit flies (Diptera, Tephritidae cause economic damages in many fruit orchards. To know the population fluctuation of these flies in Citrus orchards in the west of Santa Catarina, Brazil, and to study the environmental factor interferences on these insects, five traps with 25% vinegar were weekly installed in two orange Valência variety orchards, in Águas de Chapecó and Chapecó, from October of 1999 to September of 2001. The samples of flies trap captured were counted at Epagri Fitossanity Laboratory in Chapecó. A correlation and regression polynomial analyses between flies monthly captured of genus Anastrepha and monthly datas of rain precipitation, isolation, air humidity, wind speed

  10. Procedures for mass rearing the West Indian fruit fly, Anastrepha obliqua

    International Nuclear Information System (INIS)

    A series of bioassays resulted in a promising colony of Anastrepha obliqua (Macquart) for artificial production. A new model circular cage has been designed to achieve an increase in density of adults per cages, thus resulting in an increase in egg production. A bioassay for best egg production as well as constant hydration of eggs until collection time was chosen. Cotton fabric gave the best results of the fabrics used in the oviposition panel. A new diet based on corn cob particles and with citrus acid instead of hydrochloric acid was tested and showed promising results in good production, quality and less risk in handling. The optimum humidity range for larva to pupa conversion was found to be 70-80%. (author)

  11. Influence of quantities of brewer yeast on the performance of Anastrepha obliqua wild females (Diptera, Tephritidae

    Directory of Open Access Journals (Sweden)

    Cresoni-Pereira Carla

    2001-01-01

    Full Text Available Using artificial solid diets, experiments were performed with Anastrepha obliqua (Macquart, 1835 wild females in order to verify the influence of different quantities of brewer yeast on the performance and compensation behavior to unbalanced diets ingestion. The observed parameters were egg production, ingestion, diet efficiency and survival in the reproductive phase. Results indicated that there was no compensatory ingestion to different quantities of yeast and that the diet with 12.5g of yeast provided the best performance. The absence of compensatory ingestion is discussed based on the yeast phagostimulation and on the costs involved in solid diets ingestion. The relation between the analyzed parameters and the protein quantities in the diet were discussed.

  12. New species and host plants of Anastrepha (Diptera: Tephritidae) primarily from Peru and Bolivia.

    Science.gov (United States)

    Norrbom, Allen L; Rodriguez, Erick J; Steck, Gary J; Sutton, Bruce A; Nolazco, Norma

    2015-01-01

    Twenty-eight new species of Anastrepha are described and illustrated: A. acca (Bolivia, Peru), A. adami (Peru), A. amplidentata (Bolivia, Peru), A. annonae (Peru), A. breviapex (Peru), A. caballeroi (Peru), A. camba (Bolivia, Peru), A. cicra (Bolivia, Peru), A. disjuncta (Peru), A. durantae (Peru), A. echaratiensis (Peru), A. eminens (Peru), A. ericki (Peru), A. gonzalezi (Bolivia, Peru), A. guevarai (Peru), A. gusi (Peru), A. kimi (Colombia, Peru), A. korytkowskii (Bolivia, Peru), A. latilanceola (Bolivia, Peru), A. melanoptera (Peru), A. mollyae (Bolivia, Peru), A. perezi (Peru), A. psidivora (Peru), A. robynae (Peru), A. rondoniensis (Brazil, Peru), A. tunariensis (Bolivia, Peru), A. villosa (Bolivia), and A. zacharyi (Peru). The following host plant records are reported: A. amplidentata from Spondias mombin L. (Anacardiaceae); A. caballeroi from Quararibea malacocalyx A. Robyns & S. Nilsson (Malvaceae); A. annonae from Annona mucosa Jacq. and Annona sp. (Annonaceae); A. durantae from Duranta peruviana Moldenke (Verbenaceae); and A. psidivora from Psidium guajava L. (Myrtaceae). PMID:26624697

  13. Introducción y producción en laboratorio de Diachasmimorpha tryon i y Diachasmimorpha longicaudata (Hymenoptera: Braconidae para el control biológico de Ceratitis capitata (Diptera: Tephritidae en la Argentina Introduction and laboratory production of Diachasmimorpha tryoni and Diachasmimorpha longicaudata (Hymenoptera: Braconidae for the biological control of Ceratitis capitata (Diptera: Tephritidae in Argentina

    Directory of Open Access Journals (Sweden)

    Sergio M. Ovruski

    2003-12-01

    Full Text Available Con el propósito de reanudar la utilización de enemigos naturales contra la especie exótica Ceratitis capitata (Wiedemann, fueron introducidos a la Argentina en 1999 los agentes de control biológico Diachasmimorpha tryoni (Cameron y Diachasmimorpha longicaudata (Ashmead, dos endoparasitoides de larvas de tefrítidos. Por este motivo, en este trabajo se describen los procedimientos de cría en laboratorio del huésped y de ambas especies de parasitoides y, se presentan y discuten los resultados de un año de producción de D. tryoni y D. longicaudata a mediana escala (enero-diciembre/2000. Se realizó un análisis comparativo de los datos obtenidos sobre la producción de descendientes, proporción sexual, porcentaje de parasitismo y viabilidad de puparios por jaula de cría durante 15 generaciones entre ambas especies de parasitoides exóticos, utilizando como huésped larvas de C. capitata del tercer estadio de siete días de edad. Además, se discuten las posibilidades para implementar el control biológico aumentativo contra C. capitata y Anastrepha fraterculus (Wiedemann en el país.The biocontrol agents Diachasmimorpha tryoni (Cameron and Diachasmimorpha longicaudata (Ashmead, two endoparasitoids of fruit fly larvae, were introduced to Argentina in 1999 with the purpose of renewing the employment of natural enemies against Ceratitis capitata (Wiedemann. For this reason, the general procedure and maintenance of the host and parasitoids rearing in the laboratory are described, and the results of one year insectary production (January-December/2000 of both D. tryoni and D. longicaudata are discussed. Data are presented of the progeny production, offpring sex ratio, host parasitism percentage, and pupal viability per parasitoid rearing cage during 15 generations of D. longicaudata and D. tryoni reared using late third instar larvae of C. capitata. New perspectives are discussed on the establishment of a biological control program for C

  14. The gene transformer of anastrepha fruit flies (Diptera, tephritidae and its evolution in insects.

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    María Fernanda Ruiz

    Full Text Available In the tephritids Ceratitis capitata and Bactrocera oleae, the gene transformer acts as the memory device for sex determination, via an auto-regulatory function; and functional Tra protein is produced only in females. This paper investigates the evolution of the gene tra, which was characterised in twelve tephritid species belonging to the less extensively analysed genus Anastrepha. Our study provided the following major conclusions. Firstly, the memory device mechanism used by this gene in sex determination in tephritids likely existed in the common ancestor of the Ceratitis, Bactrocera and Anastrepha phylogenetic lineages. This mechanism would represent the ancestral state with respect to the extant cascade seen in the more evolved Drosophila lineage. Secondly, Transformer2-specific binding intronic splicing silencer sites were found in the splicing regulatory region of transformer but not in doublesex pre-mRNAs in these tephritids. Thus, these sites probably provide the discriminating feature for the putative dual splicing activity of the Tra-Tra2 complex in tephritids. It acts as a splicing activator in dsx pre-mRNA splicing (its binding to the female-specific exon promotes the inclusion of this exon into the mature mRNA, and as a splicing inhibitor in tra pre-mRNA splicing (its binding to the male-specific exons prevents the inclusion of these exons into the mature mRNA. Further, a highly conserved region was found in the specific amino-terminal region of the tephritid Tra protein that might be involved in Tra auto-regulatory function and hence in its repressive splicing behaviour. Finally, the Tra proteins conserved the SR dipeptides, which are essential for Tra functionality.

  15. Phorcotabanus cinereus (Wiedemann, 1821 (Diptera, Tabanidae, an ornithophilic species of Tabanid in Central Amazon, Brazil

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    Limeira-de-Oliveira Francisco

    2002-01-01

    Full Text Available In Central Amazon, Brazil, the tabanid Phorcotabanus cinereus (Wiedemann was recorded attacking the native duck Cairina moschata (Linnaeus (Anseriformes, Anatidae. The flight and behavior of the tabanid during the attacks and the host's defenses were videotaped and analyzed in slow motion. The tabanid was recorded flying rapidly around the heads of the ducks before landing. Landing always took place on the beak, and then the tabanid walked to the fleshy caruncle on the basal part of the beak to bite and feed. Firstly the duck defends itself through lateral harsh head movements, and then, when it is being bitten, it defends itself by rubbing its head on the body, or dipping the head into water, when swimming. If disturbed, the fly resumed the same pattern of flight as before and would generally try to land again on the same host and bite in the same place. This feeding activity was observed predominantly between 9:30 am and 4:30 pm and always in open areas, near aquatic environments, from June 1996 to January 1997, the dry season in Central Amazon. To test the attractiveness of other animals to P. cinereus, mammals, caimans and domestic and wild birds were placed in suitable habitat and the response of P. cinereus observed. P. cinereus did not attack these animals, suggesting that this species has a preference for ducks, which are plentiful in the region.

  16. Germline mutation in NLRP2 (NALP2 in a familial imprinting disorder (Beckwith-Wiedemann Syndrome.

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    Esther Meyer

    2009-03-01

    Full Text Available Beckwith-Wiedemann syndrome (BWS is a fetal overgrowth and human imprinting disorder resulting from the deregulation of a number of genes, including IGF2 and CDKN1C, in the imprinted gene cluster on chromosome 11p15.5. Most cases are sporadic and result from epimutations at either of the two 11p15.5 imprinting centres (IC1 and IC2. However, rare familial cases may be associated with germline 11p15.5 deletions causing abnormal imprinting in cis. We report a family with BWS and an IC2 epimutation in which affected siblings had inherited different parental 11p15.5 alleles excluding an in cis mechanism. Using a positional-candidate gene approach, we found that the mother was homozygous for a frameshift mutation in exon 6 of NLRP2. While germline mutations in NLRP7 have previously been associated with familial hydatidiform mole, this is the first description of NLRP2 mutation in human disease and the first report of a trans mechanism for disordered imprinting in BWS. These observations are consistent with the hypothesis that NLRP2 has a previously unrecognised role in establishing or maintaining genomic imprinting in humans.

  17. Development, genetic and cytogenetic analyses of genetic sexing strains of the Mexican fruit fly, Anastrepha ludens Loew (Diptera: Tephritidae)

    OpenAIRE

    Zepeda-Cisneros, Cristina Silvia; Meza Hernández, José Salvador; García-Martínez, Víctor; Ibañez-Palacios, Jorge; Zacharopoulou, Antigone; Franz, Gerald

    2014-01-01

    Background Anastrepha ludens is among the pests that have a major impact on México's economy because it attacks fruits as citrus and mangoes. The Mexican Federal government uses integrated pest management to control A. ludens through the Programa Nacional Moscas de la Fruta [National Fruit Fly Program, SAGARPA-SENASICA]. One of the main components of this program is the sterile insect technique (SIT), which is used to control field populations of the pest by releasing sterile flies. Results T...

  18. Mass rearing of the Mexican fruit fly, Anastrepha ludens, at the Fruit Flies Biofactory in Metapa de Dominguez, Chiapas, Mexico

    International Nuclear Information System (INIS)

    A description of the present methods for mass rearing Anastrepha ludens, known as the Mexican fruit fly, at the Fruit Flies Biofactory in Metapa de Dominguez, Chiapas, is given. Important contributions and improvements are described for the rearing stages, e.g. egg production and incubation, larvae diets, lab conditions for the development of larvae and pupae, larvae and pupae handling and environmental control. (author)

  19. Índice de infestação e diversidade de moscas-das-frutas em hospedeiros exóticos e nativos no pólo de fruticultura de Anagé, BA Index of infestation and diversity of fruit-flies in exotic hosts native to the fruitculture area in Anagé, Bahia, Brazil

    Directory of Open Access Journals (Sweden)

    Ricardo Falcão de Sá

    2008-01-01

    Full Text Available As moscas-das-frutas (Diptera: Tephritidae são os principais entraves às exportações de manga nos pólos de fruticultura da Região Sudoeste da Bahia. O presente trabalho teve como objetivo estudar índices de infestação e a diversidade de moscas-das-frutas no pólo de fruticultura de Anagé, BA, visando obter subsídios para o manejo integrado dessas pragas na mangueira, na região. Os estudos foram realizados em 2004 e 2005, nos municípios de Anagé, Belo Campo e Caraíbas, BA, procedendo-se à coleta de frutos de 21 espécies vegetais, nativas e exóticas, e identificação das espécies de moscas associadas. Estimaram-se os índices de infestação em pupários/kg de fruto e pupários/fruto. Os maiores índices de infestação, em pupários/kg de fruto, ocorreram em serigüela (Spondias purpurea L. com 61,3, juá (Ziziphus joazeiro L., 38,3 e umbu (Spondias tuberosa L., 33,1, considerados hospedeiros primários de Anastrepha fraterculus (Wiedemann e A. obliqua (Macquart. As maiores infestações em pupários/fruto ocorreram em serigüela (0,9; umbu (0,7 e cajarana (Spondias sp. (0,2. Com base no monitoramento larval, registra-se, para as condições do pólo de fruticultura de Anagé, a ocorrência das espécies Anastrepha fraterculus, A. obliqua, A. dissimilis, A. amita, A. distincta, A. sororcula, A. zenildae e Ceratitis capitata. Registram-se, pela primeira vez, as seguintes associações bitróficas: juá com A. fraterculus, A. obliqua, A. dissimilis e A. distincta; e umbu com A. amita e A. sororcula.Fruit-flies (Diptera: Tephritidae are the main hindrance for mango exportation in the fruitculture areas of the Southwestern Region of Bahia. The purpose of the present work was to study the indexes of infestation and diversity of fruit-flies in the fruitculture area of Anagé, BA, in order to obtain subsidies to the integrated management of these pests in mango, in this region. Studies were carried out in 2004 and 2005 in the

  20. Parasitóides de Fannia pusio (Wiedemann, 1830) (Diptera: Fanniidae) coletados em Caldas Novas, Goiás, Brasil Parasitoids of Fannia pusio (Wiedemann, 1830) (Diptera: Fanniidae) collected in Caldas Novas, Goiás, Brasil

    OpenAIRE

    Carlos Henrique Marchiori; Otacílio Moreira Silva Filho; Francilene Cardoso Alves Fortes; Rélia Rodrigues Brunes; Rauer Ferreira Borges; Patricia Luzia Pereira Gonçalves; Juliana Fischer Laurindo

    2005-01-01

    Com este estudo, objetivou-se verificar as espécies de insetos parasitando Fannia pusio (Wiedemann, 1830) (Diptera: Fanniidae)em Caldas Novas, Goiás, de agosto de 2003 a maio de 2004, empregando como atrativo de alimentação iscas formadas por fezes humanas, fígado bovino e peixe, com pupas sendo isoladas pelo método da flutuação, em água e individualizadas em cápsulas de gelatina até a emergência das moscas e/ou dos seus parasitóides. As porcentagens de parasitismo apresentada por Pachycrepoi...

  1. Análise de sobrevivência e estimativa de entropia para Sarconesia chlorogaster (Wiedemann) (Diptera, Calliphoridae) Survival analysis and estimation of entropy of Sarconesia chlorogaster (Wiedemann) (Diptera, Calliphoridae)

    OpenAIRE

    Maurício O. Moura; Sionei R. Bonatto

    1999-01-01

    The life expectancy of Sarconesia chlorogaster (Wiedemann, 1830) reared in artificial diet and controlled temperatures chamber set at 27±1oC, 70±10% RH and 12 hours of photophase was analysed using entropy (H). Entropy (H) was used to quantify the distribuition of deaths between ages and then quantify the impact of mortality on life expectancy. The entropy values obtained for males (H=0,245) and females (H=0,299) were intermediary between the theoretical values of H=0,5 and H=0 suggesting a t...

  2. Comportamento sexual de Anastrepha sororcula Zucchi (Diptera, Tephritidae em laboratório Sexual behavior of Anastrepha sororcula Zucchi (Diptera, Tephritidae in laboratory

    Directory of Open Access Journals (Sweden)

    Michelli C. N. Facholi-Bendassolli

    2006-09-01

    Full Text Available Anastrepha sororcula Zucchi, 1979, é uma das espécies de mosca-das-frutas mais disseminadas no País, sendo considerada a praga-chave que causa os maiores danos à produção de goiaba (Psidium guajava L., 1758 no Brasil. Em vista da importância desta espécie no complexo de pragas naturais da fruticultura brasileira e, em face à escassez de dados sobre sua biologia e comportamento, este trabalho teve por objetivo obter informações sobre a idade de maturação sexual de A. sororcula em laboratório e descrever seu comportamento reprodutivo. Os machos atingiram a maturidade sexual entre 7 e 18 dias após a emergência, com a maioria dos indivíduos tornando-se sexualmente maduros entre 10 e 13 dias de idade. Exibiram comportamento de sinalização às fêmeas, caracterizado pela distensão da região pleural do abdome, formando uma pequena bolsa de cada lado e, eversão de uma diminuta bolsa membranosa de cutícula retal que circunda a área anal. Durante este processo, os machos realizaram rápidos movimentos de vibração das asas, produzindo sinais audíveis. Uma gotícula foi liberada da região anal durante os movimentos de vibração alar. Após a atração das fêmeas, os machos realizaram uma série de movimentos elaborados de cortejo. As fêmeas alcançaram a maturação sexual entre 14 e 24 dias da emergência, com a maioria tornando-se sexualmente madura aos 19 dias de idade. A exibição diária das atividades sexuais foi confinada quase que exclusivamente ao período das 16:00-17:30h. A. sororcula apresentou um acentuado padrão de protandria.Anastrepha sororcula Zucchi, 1979, is a fruit fly species that can be considered a key pest to the production of guava (Psidium guajava L., 1758, fruit tree which has a wide distribution in Brazil. In view of the importance of this species as a natural pest of Brazilian horticulture and, considering the lack of data about its biology and behavior, the aim of this paper is to obtain

  3. Medfly (Ceratitis capitata Wiedemann) female attractant studies and development of trapping systems for sterility assessment

    International Nuclear Information System (INIS)

    In four years of research, we evaluated different traps (McPhail, Tephri, Closed-bottom dry trap, Open-bottom dry trap, and Frutect), lures (FA-2 and FA-3 synthetic lures composed of ammonium acetate + putrescine, and ammonium acetate + putrescine + trimethylamine, respectively), and insect retention methods (water, sticky inserts, insecticides) to develop a selective trapping system for female Mediterranean fruit fly (Ceratitis capitata, Wiedemann) sterility assessment. The trapping systems were compared with protein-baited McPhail traps, which are the standard method for C. capitata female capture, during eight to fifteen week trials in coffee and orthanique orange plantations at two different localities in Honduras. Trimedlure-baited Jackson traps were also used as the standard indicator of the C. capitata populations. The Closed-bottom trap baited with the two-component synthetic lure captured eight to twelve times fewer C. capitata than the Jackson trap. The McPhail trap and the modified Open-bottom trap, both baited with the two-component synthetic lure, captured 1.6 to 3.5 times more C. capitata females than the protein-baited McPhail trap. The addition of trimethylamine to the two-component synthetic lure resulted in 9.8 to 15.8 times increases in C. capitata female capture over the protein-baited McPhail trap. The presence of water in McPhail or Tephri traps did not affect the capture of C. capitata females. Throughout the study, all female-targeted trapping systems captured the same proportion of females. (author)

  4. Variação na infestação de mosca-das-frutas (Diptera: Tephritidae e parasitismo em diferentes fases de frutificação em mirtaceas nativas no Rio Grande do Sul

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    Diogo Ricardo Pereira Rêgo

    2013-07-01

    Abstract. The fruit fly Anastrepha fraterculus (Wiedemann (Diptera: Tephritidae is an important pest of fruit production in Rio Grande do Sul. A. fraterculus presents native and exotic hosts, according to fruiting time. The objective of this study was compare infestation rate, the intensity of infestation of fruit fly and parasitism in four native Myrtaceae. The fruits were stored under ambient conditions until flies or parasitoids emergence. These evaluation were made in fruits collected from the canopy and soil, and between stages of ripening of the canopy. The largest infestation rate of fruit fly occurred in guava (89.5% and the lowest in feijoa (67%. The intensity of infestation per fruit was highest in guava (17.33 and lowest in red strawberry guava (1.62. The highest rate of puparia per gram of fruit was obtained in the feijoa (0.50 and the lowest in guava (0.22. The highest parasitism rate was in feijoa (21.40% and the lowest in yellow strawberry guava (2.81%. A greater occurrence of this pest in guava and feijoa revealing highest attractiveness in these hosts. Feijoa is a repository for native parasitodes species.

  5. Revision of the genus Macrostomus Wiedemann (Diptera: Empididae: Empidinae: II. The pictipennis species-group Revisão do gênero Macrostomus Wiedemann (Diptera: Empididae: Empidinae: II. O grupo de espécies pictipennis

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    José Albertino Rafael

    2010-09-01

    Full Text Available All species of Macrostomus Wiedemann allied with Macrostomus pictipennis (Bezzi, are treated in the pictipennis species-group. Three currently recognized species and four new species are included, namely M. cervicicauda Smith, M. cysticercus Smith, M. manauara, sp. nov. from Brazil (Amazonas and Pará states, M. pacaraima, sp. nov. from Brazil (Roraima, Amazonas and Pará states, M. pictipennis (Bezzi, M. smithi, sp. nov. from Guyana and Brazil (Roraima State and M. utinga, sp. nov. from Brazil (Pará State. All primary types were examined and a key to species is presented.As espécies de Macrostomus Wiedemann afins de Macrostomus pictipennis (Bezzi estão sendo tratadas no grupo M. pictipennis, o qual inclui três espécies já descritas e quarto espécies novas, a saber: M. cervicicauda Smith, M. cysticercus Smith, M. manauara, sp. nov. do Brasil (Amazonas e Pará, M. pictipennis (Bezzi, M. smithi, sp. nov. da Guiana e Brasil (Roraima, M. utinga, sp. nov. do Brasil (Pará e M. pacaraima, sp. nov. do Brasil (Roraima, Amazonas e Pará. Todos os tipos primários foram examinados e uma chave para espécie é apresentada.

  6. Moscas frugívoras associadas a mirtáceas e laranjeira "Céu" na região do Vale do Rio Caí, Rio Grande do Sul, Brasil Frugivorous flies in myrtaceans and orange trees 'Céu' in the region of Vale do Rio Caí, Rio Grande do Sul State, Brazil

    Directory of Open Access Journals (Sweden)

    Tacimara Gattelli

    2008-02-01

    Full Text Available Este estudo teve o objetivo de reconhecer as espécies de moscas frugívoras em mirtáceas: Eugenia uniflora L., Campomanesia xanthocarpa Berg., Psidium cattleianum Sabine, Psidium guajava L. e Acca sellowiana (Berg. Burret., bem como em Citrus sinensis (L. Osbeck (Rutaceae, na região do Vale do Caí, RS. Os frutos foram coletados no período de maturação de cada espécie frutífera, entre outubro de 2004 e julho de 2005, levados ao laboratório e acondicionados em potes com areia mantidos a 25 ± 1°C; 80 ± 10% UR e fotofase de 12 horas. Os pupários obtidos foram individualizados e suas características foram registradas. De Tephritidae foi registrada apenas Anastrepha fraterculus (Wiedemann e de Lonchaeidae Neosilba n. sp. 3, Neosilba zadolicha McAlpine & Steyskal e Neosilba certa (Walker. As duas últimas são novos registros para o Rio Grande do Sul. Apenas em P. cattleianum foram registradas todas as espécies de moscas encontradas neste trabalho. Os resultados evidenciam que A. fraterculus é a espécie de mosca-das-frutas de maior ocorrência para a região do Vale do Caí, RS, nas frutíferas estudadas.This study aimed at recognizing frugivorous flies species in Myrtaceae: Eugenia uniflora L., Campomanesia xanthocarpa Berg. Psidium cattleianum Sabine, Psidium guajava L. and Acca sellowiana (Berg. Burret., as well as in Citrus sinensis (L. Osbeck (Rutaceae, at Vale do Cai region, Rio Grande do Sul. Fruits were collected at the maturation stage of each fruit species between October 2004 and July 2005, and at the laboratory they were placed in pots with sand and were kept at 12h photoperiod, 80 ± 10% RH and 25 ± 1°C. Pupae were individualized and their characteristics were recorded. In Tephritidae only Anastrepha fraterculus (Wied. was recorded and in Lonchaeidae, Neosilba n. sp. 3, Neosilba zadolicha McAlpine & Steyskal and Neosilba certa (Walker. These last two species were recorded for the first time in Rio Grande do Sul. Only on

  7. Influence of Methoprene on Pheromone Emission and Sexual Maturation of Anastrepha obliqua (Diptera: Tephritidae) males.

    Science.gov (United States)

    Muñoz-Barrios, Rodolfo; Cruz-López, Leopoldo; Rojas, Julio C; Hernández, Emilio; Liedo, Pablo; Gómez-Simuta, Yeudiel; Malo, Edi A

    2016-04-01

    It has been demonstrated that the application of juvenile hormone analog, methoprene, reduces the time required for sexual maturation and enhances mating success in several species of tephritid fruit flies. This study examined the effect of different concentrations of methoprene incorporated into the diet of adult flies and distinct sugar:protein (S:P) ratios on sexual maturity and pheromone emission of Anastrepha obliqua males. Diets with 0.2 and 0.5% of methoprene accelerated sexual maturation of males compared with untreated males. In subsequent assays, the enhancement of male pheromone emission and sexual maturation by the incorporation of 0.02% methoprene into a 24:1 (S: P) diet was confirmed. Among the volatiles released by males, (Z)-3-nonenol and (Z,Z)-3,6-nonadienol were emitted at higher quantities by flies treated with methoprene than untreated ones. The results show that methoprene accelerates sexual maturation of mass-reared A. obliqua males and increases their mating propensity. This would reduce the time required to attain sexual maturation by sterile males, thus decreasing fly handling costs and improving the efficacy of the sterile insect technique. PMID:26797870

  8. Sterility and Sexual Competitiveness of Tapachula-7 Anastrepha ludens Males Irradiated at Different Doses.

    Science.gov (United States)

    Orozco-Dávila, Dina; Adriano-Anaya, Maria de Lourdes; Quintero-Fong, Luis; Salvador-Figueroa, Miguel

    2015-01-01

    A genetic sexing strain of Anastrepha ludens (Loew), Tapachula-7, was developed by the Mexican Program Against Fruit Flies to produce and release only males in programs where the sterile insect technique (SIT) is applied. Currently, breeding are found at a massive scale, and it is necessary to determine the optimum irradiation dose that releases sterile males with minimum damage to their sexual competitiveness. Under laboratory and field conditions, we evaluated the effects of gamma irradiation at doses of 0, 20, 40, 60 and 80 Gy on the sexual competitiveness of males, the induction of sterility in wild females and offspring survivorship. The results of the study indicate that irradiation doses have a significant effect on the sexual behavior of males. A reduction of mating capacity was inversely proportional to the irradiation dose of males. It is estimated that a dose of 60 Gy can induce more than 99% sterility in wild females. In all treatments, the degree of offspring fertility was correlated with the irradiation dose of the parents. In conclusion, the results of the study indicate that a dose of 60 Gy can be applied in sterile insect technique release programs. The application of this dose in the new genetic sexing strain of A. ludens is discussed. PMID:26274926

  9. Sterility and Sexual Competitiveness of Tapachula-7 Anastrepha ludens Males Irradiated at Different Doses.

    Directory of Open Access Journals (Sweden)

    Dina Orozco-Dávila

    Full Text Available A genetic sexing strain of Anastrepha ludens (Loew, Tapachula-7, was developed by the Mexican Program Against Fruit Flies to produce and release only males in programs where the sterile insect technique (SIT is applied. Currently, breeding are found at a massive scale, and it is necessary to determine the optimum irradiation dose that releases sterile males with minimum damage to their sexual competitiveness. Under laboratory and field conditions, we evaluated the effects of gamma irradiation at doses of 0, 20, 40, 60 and 80 Gy on the sexual competitiveness of males, the induction of sterility in wild females and offspring survivorship. The results of the study indicate that irradiation doses have a significant effect on the sexual behavior of males. A reduction of mating capacity was inversely proportional to the irradiation dose of males. It is estimated that a dose of 60 Gy can induce more than 99% sterility in wild females. In all treatments, the degree of offspring fertility was correlated with the irradiation dose of the parents. In conclusion, the results of the study indicate that a dose of 60 Gy can be applied in sterile insect technique release programs. The application of this dose in the new genetic sexing strain of A. ludens is discussed.

  10. Mixture-amount design and response surface modeling to assess the effects of flavonoids and phenolic acids on developmental performance of Anastrepha ludens

    Science.gov (United States)

    A mixture-amount experimental design and response surface modeling were used to study the effects of three flavonoids and two phenolic acids, alone or in mixtures, in an artificial larval diet on the development and survival of Mexican fruit fly (Anastrepha ludens [Loew]). Pupal weight, percentage o...

  11. Forest fragments as barriers to fruit fly dispersal: Anastrepha (Diptera: Tephritidae) populations in orchards and adjacent forest fragments in Puerto Rico

    Science.gov (United States)

    McPhail-type traps baited with ammonium acetate and putrescine were used to monitor populations of Anastrepha obliqua and A. suspensa at four sites in Guánica, Puerto Rico; one forest fragment in Ponce, Puerto Rico; in a commercial mango orchard in Guayanilla, PR; and an experimental carambola orcha...

  12. Response of Anastrepha suspensa (Diptera: Tepritidae) to white and brown cane, coconut, date, date jaggery and panela sugar solutions with varying degrees of fermentation

    Science.gov (United States)

    We measured the EAG response of Anastrepha suspensa (Loew), the Caribbean fruit fly to six different sugars (white and brown cane, coconut, date, date jaggery and panela sugars). Wild and lab female flies of different physiological states (immature and mature) were tested in dry crystals and 10% su...

  13. Effects of bait age and prior protein feeding on cumulative time dependent mortality of Anastrepha ludens (Diptera: Tephritidae) exposed to GF-120 Spinosad baits.

    Science.gov (United States)

    A fruit fly bait to attract and kill adult fruit flies (GF-120, Dow Agro-Science) was tested to determine effects of pre-treatment diet and ageing of GF-120 bait prior to use on cumulative mortality rates of the Mexican fruit fly (Anastrepha ludens (Leow), Tephritidae). Bait effectiveness depends o...

  14. Susceptibility of 15 mango (Sapindales: Anacardiaceae) cultivars to the attack by Anastrepha ludens and Anastrepha obliqua (Diptera: Tephritidae) and the role of underdeveloped fruit as pest reservoirs: management implications.

    Science.gov (United States)

    Aluja, M; Arredondo, J; Díaz-Fleischer, F; Birke, A; Rull, J; Niogret, J; Epsky, N

    2014-02-01

    We evaluated the susceptibility of 15 mango cultivars to the attack of Anastrepha ludens (Loew) and Anastrepha obliqua (Macquart) (Diptera: Tephritidae), the main tephritid pests of this crop in Mexico. In a field experiment, bagged fruit-bearing branches were exposed to gravid females of both fly species. Infestation rates, developmental time, adult eclosion, and F1 adult longevity, fecundity, and fertility were recorded, ranking cultivars in terms of susceptibility to fly attack and development. We also compared the volatile profile in selected resistant and susceptible cultivars in search of possible correlations. In a second experiment, clutch size for A. ludens was determined in each cultivar. Infestation rates, developmental time, and F1 demographic parameters varied sharply among cultivars and between fly species for bagged fruit. Cultivars 'Vishi,' '74-82,' and 'Brooks' were most susceptible to A. ludens infestation while "Tommy,' 'Sensation,' and 'Ataulfo "niño"' (parthenocarpic fruit) were most susceptible to A. obliqua infestation. 'Edward,' 'Kent,' 'Brooks late,' 'Palmer, and 'Ataulfo' exhibited tolerance to attack of both fly species. Fruit of susceptible and resistant cultivars exhibited unique volatile profiles. Fly development and F1 adult demographic parameters varied significantly among cultivars. A. ludens females laid larger clutches in larger and harder fruit. We highlight the important role of Ataulfo "niño" as pest reservoir if fruit is left unharvested on trees. We discuss the possible use of highly resistant cultivars as trap crops or egg sinks. PMID:24665723

  15. Histological features of the pancreas in a patient with congenital hyperinsulinism due to Beckwith-Wiedemann syndrome

    DEFF Research Database (Denmark)

    Christensen, Lene; Christesen, Henrik Boye Thybo; Brusgaard, Klaus;

    Introduction: Beckwith-Wiedemann syndrome (BWS) is a genetic disorder with typical features such as macroglossia, abdominal wall defects, macrosomia, visceromegaly and embryonal tumors. Hypoglycemia is reported in about half of all newborns with BWS, usually resolving spontaneously within the first...... and trabeculi of endocrine cells with uniform nuclei and sparse cytoplasm were observed throughout the pancreas. Most of the endocrine cells expressed insulin, while cells positive for glucagon and somatostatin were observed at the periphery of the confluent trabeculi and islets. The endocrine cells occupied......, a focus of pancreatoblastoma measuring 3x1 mm was noted. Discussion and conclusion: In this report of premature neonate with severe CHI due to BWS requiring near-total pancreatectomy, we found diffuse adenomatous hyperplasia of endocrine cells. These microscopic features differ from the focal, diffuse...

  16. Influence of protein on feeding behavior of Ceratitis capitata Wiedemann (Diptera: Tephritidae): comparison between immature males and females

    International Nuclear Information System (INIS)

    The objective of this work was to compare the influence of dietary protein on performance and feeding behavior of immature males and females of Ceratitis capitata (Wiedemann). The protein source was beer yeast at 6.5 and 1.5 g.100 ml-1. The following parameters were evaluated: percentage of emergence, total life cycle, adult size, diet consumption, feeding preference and discrimination threshold for yeast. Immature adults showed similar protein requirements regardless of sex. Both males and females showed similar feeding behavior, preferring to feed on the diet with higher protein content. The discrimination threshold for levedure in both sexes was 0.4 g.100 ml-1. We concluded that immature males of C. capitata show similar protein requirements as the immature females. (author)

  17. No evidence for pathogenic variants or maternal effect of ZFP57 as the cause of Beckwith-Wiedemann Syndrome

    DEFF Research Database (Denmark)

    Boonen, Susanne E; Hahnemann, Johanne M D; Mackay, Deborah; Tommerup, Niels; Brøndum-Nielsen, Karen; Tümer, Zeynep; Grønskov, Karen

    2012-01-01

    Beckwith-Wiedemann syndrome (BWS) is an overgrowth syndrome, which, in 50-60% of sporadic cases, is caused by hypomethylation of KCNQ1OT1 differentially methylated region (DMR) at chromosome 11p15.5. The underlying defect of this hypomethylation is largely unknown. Recently, recessive mutations of...... the ZFP57 gene were reported in patients with transient neonatal diabetes mellitus type 1, showing hypomethylation at multiple imprinted loci, including KCNQ1OT1 DMR in some. The aim of our study was to determine whether ZFP57 alterations were a genetic cause of the hypomethylation at KCNQ1OT1 DMR in...... patients with BWS. We sequenced ZFP57 in 27 BWS probands and in 23 available mothers to test for a maternal effect. We identified three novel, presumably benign sequence variants in ZFP57; thus, we found no evidence for ZFP57 alterations as a major cause in sporadic BWS cases....

  18. Male irradiation affects female remating behavior in Anastrepha serpentina (Diptera: Tephritidae).

    Science.gov (United States)

    Landeta-Escamilla, Anais; Hernández, Emilio; Arredondo, José; Díaz-Fleischer, Francisco; Pérez-Staples, Diana

    2016-02-01

    Female remating in target pest species can affect the efficacy of control methods such as the Sterile Insect Technique (SIT) but very little is known about the postcopulatory mating behavior of these pests. In this study, we investigated the remating behavior of female Anastrepha serpentina (Diptera: Tephritidae), an oligophagous pest of Sapotaceae. First, we tested how long the sexual refractory period of females lasted after an initial mating. Second, we tested the effect of male and female sterility, female ovipositing opportunities and male density on female propensity to remate. Lastly, we tested if the amount of sperm stored by females was correlated to the likelihood of females to remate. We found that receptivity of mass-reared A. serpentina females had a bimodal response, with up to 16% of mass-reared A. serpentina females remating five days after the initial copulation, decreasing to 2% at 10 and 15 days and increasing to 13% after 20 days. Compared to fertile males, sterile males were less likely to mate and less likely to inhibit females from remating. Copula duration of sterile males was shorter compared to fertile males. Remating females were less likely to mate with a sterile male as a second mate. Sterile females were less likely to mate or remate compared to fertile females. Opportunity to oviposit and male density had no effect on female remating probability. Sperm numbers were not correlated with female likelihood to remate. Information on the post-copulatory behavior of mass-reared A. serpentina will aid fruit fly managers in improving the quality of sterile males. We discuss our results in terms of the differences this species presents in female remating behavior compared to other tephritids. PMID:26616467

  19. Selection of oviposition sites by wild Anastrepha obliqua (Macquart) (Diptera: Tephritidae) based on the nutritional composition

    International Nuclear Information System (INIS)

    Few works have studied in detail the types of nutrients associated to hosts which are attractive to females of Anastrepha obliqua (Macquart) and influence the choice of the oviposition site. The relationship of the males in the physiology and in the behavior of those females has also been scarcely studied and some ecological relationships seem to be quite important for the knowledge of this species' biology. Our objective in this study was to evaluate the discriminatory behavior of A. obliqua between oviposition sites containing different nutrients. The presence of the male and the nutritional status of the female were also considered in this work. Two experiments were developed: in the first, the preference of A. obliqua females between artificial oviposition substrates was evaluated; in the second, females were submitted to two types of artificial oviposition substrates in the presence and in the absence of males and were fed either on a poor diet or on an adequate diet concerning sucrose concentration. In the first experiment, A. obliqua showed higher preference for substrates containing brewer's yeast and sucrose. Substrate containing only yeast was the second most accepted. Offspring development and adult feeding may have determined the choice for the substrate containing brewer's yeast and sucrose. In addition, the presence of protein in the brewer's yeast may indicate nutritional quality to the females in a more accurate way than the sucrose. In the second experiment, the brewer's yeast was the most accepted by the females. The male absence was also an important factor in the selection of hosts and in the egg production of A. obliqua. (author)

  20. Field evaluation of potential fruit-derived lures for Anastrepha obliqua (Diptera: Tephritidae).

    Science.gov (United States)

    Toledo, Jorge; Malo, Edi A; Cruz-López, Leopoldo; Rojas, Julio C

    2009-12-01

    Previous studies have shown that a nine-component blend (ethyl butyrate, isopropyl butyrate, hexan-1-ol, propyl butyrate, isobutyl butyrate, ethyl hexanoate, isopentyl butyrate, ethyl benzoate, and ethyl octanoate) isolated from Spondias mombin L. (Anacardiaceae) fruit are attractive to both sexes of West Indian fruit fly, Anastrepha obliqua (Macquart) (Diptera: Tephritidae), in laboratory and field cage tests. In this study, we evaluated the effectiveness of traps baited with the nine-component blend in capturing wild A. obliqua in a mango, Mangifera indica L. variety Ataulfo) orchard. In addition, we tested other S. mombin-derived lures to determine whether any of these effectively mimic the nine-component blend in attracting A. obliqua. In all trials, we compared the attractiveness of the S. mombin-derived lures against hydrolyzed protein, the standard bait for monitoring A. obliqua. We found that, in some trials, there was no difference in the number of females caught by traps baited with the nine-component blend or with hydrolyzed protein. In other trials, traps baited with hydrolyzed protein captured more females than traps baited with the nine-component blend. For males, in general there were no differences in the number of flies caught by traps baited either with the nine-component blend or with hydrolyzed protein. Traps baited with other S. mombin-derived lures captured fewer A. obliqua than traps baited with hydrolyzed protein. Traps baited with S. mombin-derived lures caught fewer species of nontarget tephritid flies and nontarget insects than traps baited with hydrolyzed protein. PMID:20069833

  1. [Fruit flies (Diptera: Tephritidae) and their parasitoids (Hymenoptera: Braconidae) associated to host plants in the southern region of Bahia State].

    Science.gov (United States)

    Bittencourt, M A L; da Silva, A C M; Silva, V E S; Bomfim, Z V; Guimarães, J A; de Souza Filho, M F; Araujo, E L

    2011-01-01

    The association among Anastrepha species, braconid parasitoids and host fruits in southern Bahia is recorded. Doryctobracon areolatus (Szépligeti) was associated with A. serpentina (Wied.) in Pouteria caimito, A. bahiensis Lima in Helicostylis tomentosa, A. sororcula Zucchi in Eugenia uniflora, and A. obliqua (Macquart) in Spondias purpurea. Anatrepha obliqua was unique in fruits of Averrhoa carambola, but associated with D. areolatus, Asobara anastrephae (Muesebeck) and Utetes anastrephae (Viereck). In Achras sapota, A. serpentina was associated with A. anastrephae and D. areolatus, while in Psidium guajava, A. fraterculus (Wied.) and A. sororcula were associated with D. areolatus and U. anastrephae. PMID:21710038

  2. Physiological mechanisms of dehydration tolerance contribute to the invasion potential of Ceratitis capitata (Wiedemann) (Diptera: Tephritidae) relative to its less widely distributed congeners

    OpenAIRE

    Weldon, Christopher W; Boardman, Leigh; Marlin, Danica; Terblanche, John S.

    2016-01-01

    Background The Mediterranean fruit fly, Ceratitis capitata (Wiedemann) (Diptera: Tephritidae) is a highly invasive species now with an almost cosmopolitan distribution. Two other damaging, polyphagous and closely-related species, the marula fruit fly, Ceratitis cosyra (Walker), and the Natal fly, Ceratitis rosa Karsch, are not established outside of sub-Saharan Africa. In this study, adult water balance traits and nutritional body composition were measured in all three species at different te...

  3. Jacobsen and Beckwith-Wiedemann syndromes in a child with mosaicism for partial 11pter trisomy and partial 11qter monosomy.

    Science.gov (United States)

    Putoux, Audrey; Labalme, Audrey; André, Jean-Marie; Till, Marianne; Schluth-Bolard, Caroline; Berard, Jérôme; Bertrand, Yves; Edery, Patrick; Putet, Guy; Sanlaville, Damien

    2013-02-01

    We report on a child with Jacobsen syndrome (JBS, OMIM 147791) and abnormalities consistent with Beckwith-Wiedemann syndrome (BWS, OMIM 130650). The constitutional karyotype was apparently normal, but FISH analysis with probes specific for the short and long arms of chromosome 11 found 11qter deletion with 11pter trisomy in 80% of the cells studied. Array-CGH identified breakpoints in the 11p15.3 and 11q24.1 regions consistent with Jacobsen and Beckwith-Wiedemann syndromes. We suggest that this chromosome imbalance results from a pericentric inversion of chromosome 11 inherited from the father, with mosaicism resulting from meiotic recombination of a paternal inversion followed by mitotic recombination during the first embryonic divisions. This hypothesis is supported by the results of microsatellite marker analysis. Three previous cases of pericentric inversion and recombination of chromosome 11 have been reported. Our case is unusual in that it combines the Jacobsen and Beckwith-Wiedemann syndromes with mosaicism. PMID:23322614

  4. Establishment of a colony of Anastrepha ludens (Diptera: Tephritidae) under relaxed mass-rearing conditions in Mexico

    International Nuclear Information System (INIS)

    Several studies have suggested that maintaining a line of insects under laboratory conditions reduces their biological attributes. With this principle in mind, the mass production of Anastrepha ludens originating from a colony raised under relaxed rearing conditions was evaluated over a period of three years. The results of the evaluation indicated that insects kept under these conditions reached their larval maturity in 10 days, and attained a greater weight, which has a direct influence on pupal quality. In adult cages having a fly density of 70,000 individuals, there was a lower level of stress which favored fecundity. Fertility was apparently not affected by the cage density. These results suggest that keeping a production line under relaxed conditions optimizes insect production and promotes higher quality. (author)

  5. Establishment of a colony of Anastrepha ludens (Diptera: Tephritidae) under relaxed mass-rearing conditions in Mexico

    Energy Technology Data Exchange (ETDEWEB)

    Orozco-Davila, Dina; Hernandez, Refugio; Solis, Eduardo; Quintero, J. Luis; Dominguez, Julio, E-mail: dorozco1@prodigy.net.m [United States Department of Agriculture, Gainesville, FL (United States). Agricultural Research Service. Center for Medical, Agricultural, and Veterinary Entomology; Sigma Space Corporation, MD(United States); Programa Moscamed Moscafrut-Desarrollo de Metodos, Chiapas (Mexico)

    2006-07-01

    Several studies have suggested that maintaining a line of insects under laboratory conditions reduces their biological attributes. With this principle in mind, the mass production of Anastrepha ludens originating from a colony raised under relaxed rearing conditions was evaluated over a period of three years. The results of the evaluation indicated that insects kept under these conditions reached their larval maturity in 10 days, and attained a greater weight, which has a direct influence on pupal quality. In adult cages having a fly density of 70,000 individuals, there was a lower level of stress which favored fecundity. Fertility was apparently not affected by the cage density. These results suggest that keeping a production line under relaxed conditions optimizes insect production and promotes higher quality. (author)

  6. Evaluating the quality of the Mexican fruit-fly, Anastrepha ludens, as host for the parasitoid Melittobia digitata

    Directory of Open Access Journals (Sweden)

    J.M. González

    2013-08-01

    Full Text Available We investigated the presence of Melittobia digitata (Hymenoptera: Eulophidae and its associations with its natural hosts in Veracruz, Mexico. The parasitoid was confirmed to be present and found to attack prepupae of Trypoxylon and Sceliphron (Hymenoptera: Crabronidae and Sphecidae, respectively mud daubers as well as pupae of the Mexican fruit fly Anastrepha ludens (Diptera: Tephritidae. Since A. ludens is a very important pest of citrus and mango in Mexico and Central America, we evaluated, in laboratory experiments, the quality of A. ludens as host of M. digitata comparing the development of the parasitoid in another unrelated fly species (Sarcophaga [Neobellieria] bullata (Diptera: Sarcophagidae and in mud dauber wasps (Trypoxylon sp. and Sceliphron sp.. The Mexican fruit fly appears to be a good-quality host for M. digitata, and the results are discussed in the context of their possible interest as a natural enemy of A. ludens.

  7. Evaluation of techniques for C and ASG banding of the mitotic chromosomes of Anastrepha species (Diptera, Tephritidae

    Directory of Open Access Journals (Sweden)

    Denise Selivon

    1997-12-01

    Full Text Available Methods previously described by Canovai et al. (Caryologia 47: 241-247, 1994 which produced C and ASG bands in mitotic chromosomes of Ceratitis capitata were applied to the chromosomes of several Anastrepha species. Metaphase plate yield was substantially increased by use of imaginal disks together with cerebral ganglia. The C-bands were quite prominent allowing the resolution of tiny blocks of heterochromatin. The ASG method produced G-like banded chromosomes, which permitted recognition of each individual chromosome. These simple techniques do not require special equipment and may be valuable for karyotype variability studies in fruit flies and other DipteraTécnicas descritas anteriormente por Canovai et al. (Caryologia 47: 241-247, 1994, que produzem bandas C e ASG nos cromossomos mitóticos de Ceratitis capitata, foram testadas com os cromossomos de várias espécies de Anastrepha. O número de metáfases analisáveis aumentou significativamente quando, além dos gânglios cerebrais, discos imaginais foram utilizados nas preparações. O bandamento tipo C produzido foi bastante conspícuo, permitindo inclusive a resolução de pequenos blocos de heterocromatina. O método ASG produziu uma fração significativa de metáfases cujos cromossomos apresentavam um nítido bandamento do tipo G, que permitiu diferenciar cada cromossomo do cariótipo. Essas técnicas simples, aplicadas sem a necessidade de equipamento especial, podem ser úteis para estudos de variabilidade cariotípica intra ou inter-específica

  8. Importance of adult protein ingestion on the mating success of Ceratitis capitata Wiedemann males (Diptera: Tephritidae); Importancia da ingestao de proteina na fase adulta para o sucesso de acasalamento dos machos de Ceratitis capitata Wiedemann (Diptera: Tephritidae)

    Energy Technology Data Exchange (ETDEWEB)

    Silva Neto, Alberto M. da; Dias, Vanessa S.; Joachim-Bravo, Iara S., E-mail: bio.alberto@gmail.co, E-mail: vanessasidias@hotmail.co, E-mail: ibravo@ufba.b [Universidade Federal da Bahia (UFBA), Salvador, BA (Brazil). Inst. de Biologia. Dept. de Biologia Geral

    2010-04-15

    The importance of the protein ingestion during the adult stage on the mating success of males of Ceratitis capitata Wiedemann was evaluated in experiments of laboratory and fi eld cage. In laboratory, the effects of protein ingestion during the fi rst four or 12 days of the male adult life was assessed by the following parameters: mating success (capacity of being chosen by the female) and the number of males that give out pheromonal signals. Some experiments of mating success had been carried through with males in different ratios. In these tests, the number of males which had ingested protein (an unique male) was remained constant and the number of males fed without protein was gradually increased from 1:1 to 1:5. In the fi eld cages, the mating success experiments were done using a 1:1 ratio. The results showed that the protein ingestion in the fi rst four days of life did not influence any of the analyzed parameters. When the period of ingestion of protein was extended to 12 days, protein-fed males fed produced more pheromonal signals and had a higher mating success when at a 1:1 ratio in laboratory and fi eld cage assays. In laboratory, females randomly chose males in any other tested ratio (1:2, 1:3, 1:4 and 1:5), indicating that the female may lose the perception to identify the male who ingested protein in the fi rst 12 days. (author)

  9. MONITORAMENTO POPULACIONAL DE Anastrepha spp. (DIPTERA: TEPHRITIDAE EM POMAR DE MANGA (Mangifera indica L. NO MUNICÍPIO DE JABOTICABAL – SP

    Directory of Open Access Journals (Sweden)

    Wilson Carlos Pazini

    2013-05-01

    Full Text Available The population monitoring of agricultural pests is an important tool to select the best control methodto be employed in a determined culture. Thus, the objective of this research was analyze the population fluctuation of Anastrepha spp. correlated with the mango tree phenology and the meteorological elements, temperature, relative humidity and pluviometric precipitation. The study was conducted between Mach 2009 to August 2010 in Jaboticabal, SP. For Anastrepha spp. monitoring, we randomly installed five yellow stick traps in an experimental orchard composed by a collection of mango varieties. These traps were replaced every fifteen days and carried to the Laboratory of Ecological Selectivity of the Department of Plant Protection (FCAV/UNESP to evaluate the sampled specimens. The meteorological data were recorded at the FCAV/UNESP Meteorological Station, located approximately 200 m from the study area. The results showed that the greater and more consistent Anastrepha spp. population density is between the spring and summer seasons, particularly related to the mature fruits. A weak positive correlation is observed between maximum temperature (°C and relative humitidy (% when compared with the Anastrepha spp. population density. There is moderate positive correlation between minimum and medium temperatures (°C and accumuluted pluviometric precipitation (mm when compared with the said agricultural pest.O monitoramento populacional de insetos considerados pragas agrícolas constitui uma importante ferramenta para a escolha do melhor método de controle a ser empregado em determinada cultura. Desta forma, o objetivo desta pesquisa foi analisar a flutuação populacional de Anastrepha spp. correlacionada com a fenologia da mangueira e com os elementos meteorológicos, temperatura, umidade relativa e precipitação pluviométrica. O estudo foi desenvolvido no período entre março de 2009 a agosto de 2010 no município de Jaboticabal, SP. Para o

  10. Combined biological effects of gamma radiation and Dimethoate insecticide on the mediterranean fruit fly ceratitis capitata Wiedemann

    International Nuclear Information System (INIS)

    The mediterranean fruit fly, (Medfly), Ceratitis capitata (Wiedemann) (Diptera : Tehritidae), is one of the most important agricultural pests. It is considered (Hagen et al, 1981) to have originated from tropical Africa, from where it spread to north and south africa, invaded spain and subsequently spread into the european mediterranean countries and the middle east. It appeared in hawaii, costa rica, south america, spread north through central america and finally into southern mexico. There are (kourti et al, 1990), 235 fruit trees, nut trees and vegetables recorded as medfly hosts . Of the 253 hosts, 40 are considered heavily or generally infested. The importance of controlling this injurious pest needs no emphasis. Different methods of control had been applied against this pest, all of them are directed towards the protection of fruits from infestation. Although man used chemical compounds which played and are still playing an important role in this struggle against insects, the extensive and continued use of broad - toxicity spectrum and long lived pesticides created a number of problems, among which environmental pollution represents one of the grave concerns. Moreover, the appearance of resistance in several species of insects to the action of these chemical is another problem

  11. Genome-wide paternal uniparental disomy as a cause of Beckwith-Wiedemann syndrome associated with recurrent virilizing adrenocortical tumors.

    Science.gov (United States)

    Bertoin, F; Letouzé, E; Grignani, P; Patey, M; Rossignol, S; Libé, R; Pasqual, C; Lardière-Deguelte, S; Hoeffel-Fornes, C; Gaillard, D; Previderè, C; Delemer, B; Lalli, E

    2015-06-01

    Beckwith-Wiedemann syndrome (BWS) is an overgrowth syndrome characterized by fetal macrosomia, macroglossia, and abdominal wall defects. BWS patients are at risk to develop Wilms tumor, neuroblastoma, hepatoblastoma, and adrenal tumors. A young woman with BWS features, but with inconclusive genetic evidence for the disease, came to clinical observation for signs of virilization at the age of 16 years. An adrenocortical tumor was diagnosed and surgically resected. The tumor underwent 2 local relapses that were also surgically treated. The patient was also operated to remove a breast fibroadenoma. SNP arrays were used to analyze chromosome abnormalities in normal and tumor samples from the patient and her parents. The patient presented genome-wide mosaic paternal uniparental disomy (patUPD) both in the adrenocortical and the breast tumors, with different degrees of loss of heterozygosity (LOH). The more recent relapses of the adrenocortical tumor showed a loss of part of chromosome 17p that was absent in the first tumor. Analysis of a skin biopsy sample also showed mosaic patUPD with partial LOH, while no LOH was detected in leukocyte DNA. This case shows that virilizing adrenocortical tumors may be a clinical feature of patients with BWS. The SNP array technology is useful to diagnose genome-wide patUPD mosaicism in BWS patients with an inconclusive molecular diagnosis and underlines the tumorigenic potential of the absence of the maternal genome combined with an excess of the paternal genome. PMID:25365508

  12. MACROGLOSSIA AS A CAUSE OF ATYPICAL SWALLOWING: COMPARISON OF EVALUATION AND LOGOPEDIC TREATMENT BETWEEN BECKWITH-WIEDEMANN AND DOWN PATIENTS

    Directory of Open Access Journals (Sweden)

    C. Anichini

    2013-12-01

    Full Text Available Atypical swallowing is the persistence of childlike deglutition at the end of dental eruption. One of the main causes is macroglossia, that is the abnormal enlargement of the tongue. The treatment is logopedic and/or surgical. Children with macroglossia have an increased incidence of respiratory diseases and infections, as well as malocclusions, articulatory defects and aesthetic damage. In this study we focused on two genetic syndromes with macroglossia: Beckwith-Wiedemann Syndrome (BWS and Down Syndrome (DS: 7 patients were evaluated for logopedic treatment: 3 are affected by BWS, 2 are affected by DS. In addition, 2 patients with isolated atypical swallowing were included in the study to emphasize problems connected with atypical swallowing. All the patients underwent a global examination and a personalized logopedic therapy scheme was planned. With the exception of one of them who was lost to follow up and who did not continue with the exercises the speech therapist had recommended, all the children showed good response and compliance with remarkable improvements, thus proving the importance of an early, constant and intensive logopedic treatment.

  13. Observation of the hydrodynamic Dirac fluid and the breakdown of the Wiedemann-Franz law in graphene

    Science.gov (United States)

    Fong, Kin Chung

    Interactions between particles in quantum many-body systems can lead to collective behavior described by hydrodynamics. One such system is the electron-hole plasma in graphene near the charge neutrality point which can form a strongly coupled Dirac fluid. This charge neutral plasma of quasi-relativistic fermions is expected to exhibit a substantial enhancement of the thermal conductivity, due to decoupling of charge and heat currents within hydrodynamics. Employing high sensitivity Johnson noise thermometry, we report the breakdown of the Wiedemann-Franz law in graphene, with a thermal conductivity an order of magnitude larger than the value predicted by Fermi liquid theory. This result is a signature of the Dirac fluid, and constitutes direct evidence of collective motion in a quantum electronic fluid. This research is performed in collaboration with J. Crossno, J. K. Shi, K. Wang, X. Liu, A. Harzheim, A. Lucas, S. Sachdev, P. Kim, T. Taniguchi, K. Watanabe, and T. A. Ohki. Funding supported by Raytheon BBN Technologies.

  14. Improving efficiency of the entomopathogenic fungi by gamma irradiation versus the Mediterranean fruit fly ceratitis capitata wiedemann (Diptera: Tephritidae)

    International Nuclear Information System (INIS)

    The efficiency of wild and irradiated biocontrol fungi, Beauvaria Bassiana (Blsamo) and Trichoderma Harzianum (Rafai) on the Mediterranean Fruit fly Ceratitis Capitata (Wiedemann) was investigated. Applying wild B. bassiana and T. harzianum using spores suspension at different concentrations (108, 106 and 104 colony-forming units), on the pupation medium (sand) or in drinking water, resulted in a significant reduction in adult emergence of pupae (1-2 day-old) and survival of produced adults. Meanwhile, the introduction of some isolates irradiated at 150 and 300 Gy significantly reduced adult emergence from pupae (1-2 day-old) and survival was greatly increased by isolates irradiated at 150 Gy of B. bassiana and at Gy in case of T. harzianum. Applying irradiated isolates as culture filtrate with the concentrations of 10, 50 and 100% to the pupation medium or in drinking water, resulted in a reduction of adult emergence and survival. The results revealed that bioagents B. bassiana and T. harzianum can be applied in the field to suppress the population of the mediterranean fruit fly ceratitis capitata and considered as entomopathogenic for controlling this pest

  15. Levantamento de moscas-das-frutas e seus parasitoides em citros, no município de Viçosa, Minas Gerais Survey of fruit-flies and their parasitoids in citrus in Viçosa, Minas Gerais

    Directory of Open Access Journals (Sweden)

    Daniel Lucas Magalhães Machado

    2012-12-01

    Full Text Available As moscas-das-frutas são responsáveis por grandes perdas em fruteiras comerciais no Brasil, por isso é fundamental conhecer as espécies predominantes na região. Objetivou-se com este trabalho estudar a ocorrência de moscas-das-frutas (Diptera: Tephritidae e seus parasitoides em laranjas doces (Citrus sinensis L. Osbeck, tangerina Poncã (Citrus reticulata Blanco e mexerica Rio (Citrus deliciosa Ten, no município de Viçosa, Minas Gerais. Os frutos foram coletados em abril de 2008. No laboratório eles foram acondicionados em caixas plásticas contendo areia umedecida e em ambiente controlado para obtenção dos pupários, que foram contados, acondicionados em frascos de vidro com areia fina e mantidos em estufa até a emergência dos adultos. Somente uma espécie de mosca-das-frutas (Anastrepha fraterculus (Wiedemann, 1830 e uma de parasitoide (Doryctobracon brasiliensis Szépligeti foram identificadas. Dentre as variedades, a laranja doce Baianinha apresentou o maior índice de infestação, e os menores foram atribuídos à mexerica Rio e à tangerina Poncã.Fruit flies are responsible for large losses in commercial orchards in Brazil, thus, it is important to know the predominant species in the region. The objective of this study was to study the occurrence of fruit flies (Diptera: Tephritoidae and of their parasitoids in sweet orange (Citrus sinensis L. Osbeck, 'Poncã' mandarin (Citrus reticulate Blanco and 'Rio' tangerine (Citrus deliciosa Ten, in Viçosa, Minas Gerais. The fruits were collected in April 2008. In the laboratory, the fruits were stored in plastic boxes containing moist sand in a controlled environment, to obtain pupae. Then, the pupae were counted, placed in glass bottles with fine sand and kept in an oven until adult emergence. Only one species of fruit fly (Anastrepha fraterculus (Wiedemann, 1830 and one species of parasitoid (Doryctobracon brasiliensis Szépligeti were identified. Among the varieties, the sweet

  16. Experiments of different compounds to attract Anastrepha obliqua (Diptera:Tephritidae)

    International Nuclear Information System (INIS)

    Information regarding eight experiments carried out between 2001 and 2004 to determine the responses of Anastrepha obliqua (Diptera:Tephritidae) to several attractants in fruit orchards in Costa Rica is presented. In a mixed coffee and citrus orchard where population levels where low in Corralar (2002 and 2004). In a guava orchard where population levels where low in 2002 and higher in 2004 in Pocora,. In a mango farm where population levels were high in Esparza (2001 and 2003). The Flies per trap per day index (FTD) obtained in mango in 2001 was 0.12 for Torula Yeast, for Ammonium Bicarbonate (AB) + Putrescine (PT) the FTD was 0.054 and for NuLure it was 0.053. In 2003 the highest attraction was obtained using NuLure (FTD = 0.025), AA+PT (FTD 0.019), 1/2AA+PT (FTD = 0.013) and Torula Yeast (FTD = 0.0077). In guava (February to April of 2004) the highest FTD was obtained with NuLure(FTD 0.11), with 1/2AA+PT (FTD = 0.07) and with Torula Yeast (FTD = 0.05). In the September - October, 2004, experiments the attraction was better using NuLure (FTD = 0.04), followed by 1/4AA+AB+1/4PT (FTD = 0.02) and by 1/2AA+PT and 1/2AA+1/4PT both with a 0.01 FTD. In the mixed coffee and citrus orchard (November - December of 2002) the highest FTD was for the NuLure, Torula Yeast and 1/2AA+PT. The differences in the concentration of AA in the formulations of 1/2, 1 and 2AA+PT, did not yield sufficient data to be able to make a conclusion. With a single 1/2AA+PT, the FTD was 0.0008, with 1AA+PT it was zero, and with 2AA+PT it was 0.004. The formulation of 1AA+PT+TMA yielded an FTD of 0.004, and the same was obtained with 2AA+PT. In 2004, the largest number of A. obliqua was captured with NuLure (FTD = 0.0053). The Easy traps with the same attractant had a FTD of 0.001. In the formulations with AA, those with 1/2AA+PT captured the largest number of flies. The data obtained in all these experiments indicate that NuLure and Torula Yeast were better attractants to capture A. obliqua in

  17. The Genetics of Eye Color Colour Mutants of the Fruit Fly Anastrepha ludens (Diptera: Tephritidae)

    International Nuclear Information System (INIS)

    Full text: The fruit fly Anastrepha ludens is one of the most important pests attacking commercial fruits such as citrus and mangoes, and having a great quarantine importance in Mexico. As a control method, the Sterile Insect Technique (SIT) is currently in use because of its effectiveness and advantages. However, its performance would be greatly enhanced by the development of a genetic sexing system that allows release of males only. Recently, the National Campaign of Fruit Flies has initiated a project to develop a genetic sexing strain of A. ludens. In order to find the appropriate genetic markers, some adult mutants have been isolated from the mass-rearing colony. These mutants are being studied in order to interpret their segregation mechanisms and to better understand the genetics of this species. Three different mutants that exhibit violet, red and yellow eyes have been found. The yellow eyes mutant possesses also white bands in the thorax. In contrast, the wild type shows green eyes with an orange mark in the centre. Additionally, wild type eyes exhibit iridescence that range from yellow to green. Conversely, a bright red background characterises eyes of the red eye mutant. The violet eye phenotype is characterised by a violet tint in the eye centre and two different iridescences, green or blue. Among all mutants, only one of them (yellow eyes) was isolated from the mass-rearing population, and then crossed with the wild type to carry on the inbreeding and screening procedures. The fly colonies were reared until F6 generation before starting with the protocols of the crosses. The offspring of the violet eye x violet eye cross was violet eye and wild type in the proportion 2:1, but the fertility rate was greatly reduced. This suggests that the mutation would be lethal as homozygous. When reciprocal crosses with the wild type were made, the F1 offspring yielded two phenotypic classes: wild type and violet eye in the ratio 1:1. A similar phenotype ratio is

  18. Influence of different tropical fruits on biological and behavioral aspects of the Mediterranean fruit fly Ceratitis capitata (Wiedemann (Diptera, Tephritidae

    Directory of Open Access Journals (Sweden)

    Anne M. Costa

    2011-09-01

    Full Text Available Influence of different tropical fruits on biological and behavioral aspects of the Mediterranean fruit fly Ceratitis capitata (Wiedemann (Diptera, Tephritidae. Studies on Ceratitis capitata, a world fruit pest, can aid the implementation of control programs by determining the plants with higher vulnerability to attacks and plants able to sustain their population in areas of fly distribution. The objective of the present study was to evaluate the influence of eight tropical fruits on the following biological and behavioral parameters of C. capitata: emergence percentage, life cycle duration, adult size, egg production, longevity, fecundity, egg viability, and oviposition acceptance. The fruits tested were: acerola (Malpighia glabra L., cashew (Anacardium occidentale L., star fruit (Averrhoa carambola L., guava (Psidium guajava L., soursop (Annona muricata L., yellow mombin (Spondias mombin L., Malay apple (Syzygium malaccense L., and umbu (Spondias tuberosa L.. The biological parameters were obtained by rearing the recently hatched larvae on each of the fruit kinds. Acceptance of fruits for oviposition experiment was assessed using no-choice tests, as couples were exposed to two pieces of the same fruit. The best performances were obtained with guava, soursop, and star fruit. Larvae reared on cashew and acerola fruits had regular performances. No adults emerged from yellow mombin, Malay apple, or umbu. Fruit species did not affect adult longevity, female fecundity, or egg viability. Guava, soursop, and acerola were preferred for oviposition, followed by star fruit, Malay apple, cashew, and yellow mombin. Oviposition did not occur on umbu. In general, fruits with better larval development were also more accepted for oviposition.Influência de diferentes frutos tropicais em aspectos biológicos e comportamentais da mosca-das-frutas Ceratitis capitata (Wiedemann (Diptera, Tephritidae. Estudos em Ceratitis capitata, uma praga agrícola, pode auxiliar

  19. Study of some biological aspects of the blowfly Chrysomya albiceps (Wiedemann 1819 (Diptera: Calliphoridae in Jeddah, Saudi Arabia

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    Layla A.H. Al-Shareef

    2016-03-01

    Full Text Available We reared Chrysomya albiceps (Wiedemann 1819 unadult stages (first larval instar, second larval instar, third larval instar and pupal stage under four constant temperatures. Results proved that increasing temperature from 20 to 25, 30 and 35 °C reduced total larval stage duration (9–6, 4.83 and 4.75 days, respectively and pupal duration (7, 5.5, 4 and 1.5 days, respectively. C. albiceps larvae at first instar reached adult stage in the longest time at 20 °C (16 days, and in the shortest time at 35 °C (6.25 days. The accumulation degree-day (ADD at 20, 25, 30, 35 °C for first larval instar were 8.86, 13.86, 18.86, 23.86 DD, for second larval instar were 10.5, 12, 17, 22 DD and for third larval instar were 35.88, 42.08, 43.97, 56.43 DD. Heat requirements for larval stage at different temperatures; 20, 25, 30 and 35 °C (49.68, 63.12, 75.01 and 97.47 DD were more than the pupal requirements at the same temperatures (39.78, 58.76, 62.73 and 31.02 DD. Total heat requirements for C. albiceps to develop from the first larval instar to adult eclosion were the lowest at 20 °C (89.46 DD and the highest at 30 °C (129.138 DD. Decreasing of temperature increased larval body length at the same age. The development curves for C. albiceps were established at four constant temperatures using larval length and the time since egg hatching.

  20. Prenatal molecular testing for Beckwith-Wiedemann and Silver-Russell syndromes: a challenge for molecular analysis and genetic counseling.

    Science.gov (United States)

    Eggermann, Thomas; Brioude, Frédéric; Russo, Silvia; Lombardi, Maria P; Bliek, Jet; Maher, Eamonn R; Larizza, Lidia; Prawitt, Dirk; Netchine, Irène; Gonzales, Marie; Grønskov, Karen; Tümer, Zeynep; Monk, David; Mannens, Marcel; Chrzanowska, Krystyna; Walasek, Malgorzata K; Begemann, Matthias; Soellner, Lukas; Eggermann, Katja; Tenorio, Jair; Nevado, Julián; Moore, Gudrun E; Mackay, Deborah Jg; Temple, Karen; Gillessen-Kaesbach, Gabriele; Ogata, Tsutomu; Weksberg, Rosanna; Algar, Elizabeth; Lapunzina, Pablo

    2016-06-01

    Beckwith-Wiedemann and Silver-Russell syndromes (BWS/SRS) are two imprinting disorders (IDs) associated with disturbances of the 11p15.5 chromosomal region. In BWS, epimutations and genomic alterations within 11p15.5 are observed in >70% of patients, whereas in SRS they are observed in about 60% of the cases. In addition, 10% of the SRS patients carry a maternal uniparental disomy of chromosome 7 11p15.5. There is an increasing demand for prenatal testing of these disorders owing to family history, indicative prenatal ultrasound findings or aberrations involving chromosomes 7 and 11. The complex molecular findings underlying these disorders are a challenge not only for laboratories offering these tests but also for geneticists counseling affected families. The scope of counseling must consider the range of detectable disturbances and their origin, the lack of precise quantitative knowledge concerning the inheritance and recurrence risks for the epigenetic abnormalities, which are hallmarks of these developmental disorders. In this paper, experts in the field of BWS and SRS, including members of the European network of congenital IDs (EUCID.net; www.imprinting-disorders.eu), put together their experience and work in the field of 11p15.5-associated IDs with a focus on prenatal testing. Altogether, prenatal tests of 160 fetuses (122 referred for BWS, 38 for SRS testing) from 5 centers were analyzed and reviewed. We summarize the current knowledge on BWS and SRS with respect to diagnostic testing, the consequences for prenatal genetic testing and counseling and our cumulative experience in dealing with these disorders. PMID:26508573

  1. TGF-β/β2-spectrin/CTCF-regulated tumor suppression in human stem cell disorder Beckwith-Wiedemann syndrome.

    Science.gov (United States)

    Chen, Jian; Yao, Zhi-Xing; Chen, Jiun-Sheng; Gi, Young Jin; Muñoz, Nina M; Kundra, Suchin; Herlong, H Franklin; Jeong, Yun Seong; Goltsov, Alexei; Ohshiro, Kazufumi; Mistry, Nipun A; Zhang, Jianping; Su, Xiaoping; Choufani, Sanaa; Mitra, Abhisek; Li, Shulin; Mishra, Bibhuti; White, Jon; Rashid, Asif; Wang, Alan Yaoqi; Javle, Milind; Davila, Marta; Michaely, Peter; Weksberg, Rosanna; Hofstetter, Wayne L; Finegold, Milton J; Shay, Jerry W; Machida, Keigo; Tsukamoto, Hidekazu; Mishra, Lopa

    2016-02-01

    Beckwith-Wiedemann syndrome (BWS) is a human stem cell disorder, and individuals with this disease have a substantially increased risk (~800-fold) of developing tumors. Epigenetic silencing of β2-spectrin (β2SP, encoded by SPTBN1), a SMAD adaptor for TGF-β signaling, is causally associated with BWS; however, a role of TGF-β deficiency in BWS-associated neoplastic transformation is unexplored. Here, we have reported that double-heterozygous Sptbn1+/- Smad3+/- mice, which have defective TGF-β signaling, develop multiple tumors that are phenotypically similar to those of BWS patients. Moreover, tumorigenesis-associated genes IGF2 and telomerase reverse transcriptase (TERT) were overexpressed in fibroblasts from BWS patients and TGF-β-defective mice. We further determined that chromatin insulator CCCTC-binding factor (CTCF) is TGF-β inducible and facilitates TGF-β-mediated repression of TERT transcription via interactions with β2SP and SMAD3. This regulation was abrogated in TGF-β-defective mice and BWS, resulting in TERT overexpression. Imprinting of the IGF2/H19 locus and the CDKN1C/KCNQ1 locus on chromosome 11p15.5 is mediated by CTCF, and this regulation is lost in BWS, leading to aberrant overexpression of growth-promoting genes. Therefore, we propose that loss of CTCF-dependent imprinting of tumor-promoting genes, such as IGF2 and TERT, results from a defective TGF-β pathway and is responsible at least in part for BWS-associated tumorigenesis as well as sporadic human cancers that are frequently associated with SPTBN1 and SMAD3 mutations. PMID:26784546

  2. Influence of different tropical fruits on biological and behavioral aspects of the Mediterranean fruit fly Ceratitis capitata (Wiedemann (Diptera, Tephritidae

    Directory of Open Access Journals (Sweden)

    Anne M. Costa

    2011-09-01

    Full Text Available Influence of different tropical fruits on biological and behavioral aspects of the Mediterranean fruit fly Ceratitis capitata (Wiedemann (Diptera, Tephritidae. Studies on Ceratitis capitata, a world fruit pest, can aid the implementation of control programs by determining the plants with higher vulnerability to attacks and plants able to sustain their population in areas of fly distribution. The objective of the present study was to evaluate the influence of eight tropical fruits on the following biological and behavioral parameters of C. capitata: emergence percentage, life cycle duration, adult size, egg production, longevity, fecundity, egg viability, and oviposition acceptance. The fruits tested were: acerola (Malpighia glabra L., cashew (Anacardium occidentale L., star fruit (Averrhoa carambola L., guava (Psidium guajava L., soursop (Annona muricata L., yellow mombin (Spondias mombin L., Malay apple (Syzygium malaccense L., and umbu (Spondias tuberosa L.. The biological parameters were obtained by rearing the recently hatched larvae on each of the fruit kinds. Acceptance of fruits for oviposition experiment was assessed using no-choice tests, as couples were exposed to two pieces of the same fruit. The best performances were obtained with guava, soursop, and star fruit. Larvae reared on cashew and acerola fruits had regular performances. No adults emerged from yellow mombin, Malay apple, or umbu. Fruit species did not affect adult longevity, female fecundity, or egg viability. Guava, soursop, and acerola were preferred for oviposition, followed by star fruit, Malay apple, cashew, and yellow mombin. Oviposition did not occur on umbu. In general, fruits with better larval development were also more accepted for oviposition.

  3. Evaluación de modernos plaguicidas en el complejo Ceratis capitata (Wiedemann) (Diptera: Tephritidae) y Psyttalia concolor Szépligeti (Hymenoptera: Braconidae)

    OpenAIRE

    Ould-Abdallahi, Elhadj Abdalldhi

    2004-01-01

    Ceratitis capitata Wiedemann (Diptera: Tephritidae) (Mosca mediterránea de la Fruta) es una de las principales plagas de los cultivos frutales. Está presente en la mayor parte de las regiones subtropicales del mundo. Su rango de huéspedes abarca a más de 250 especies. Los daños son producidos en primer lugar por la oviposición de la hembra en los frutos, y posteriormente, por el desarrollo larvario en su interior. Psyttalia concolor (Hymenoptera:Braconidae) es un endoparasitoide de moscas de ...

  4. Studies on mass rearing and effect of sterilizing doses of gamma radiation on the adult emergence and male competitiveness on Mediterranean fruit fly Ceratitis capitata (Wiedemann)

    International Nuclear Information System (INIS)

    Studies on mass rearing of mediterranean fruit fly Ceratitis capitata (Wiedemann) revealed that the size and weight of pupae influence the adult emergence, flight ability index and egg production. Egg laying spans over a period of 18 days. A great majority was laid during 3rd to 7th day. The ideal dose of gamma irradiation for sterilization of males was found to be 9 Krad applied to mature pupae. Sexual competitiveness of irradiated males was highest when the ratios of sterile male to untreated males and female was either 1:2:1 or 1:3:1. (author). 11 refs., 3 tabs

  5. Desenvolvimento Pós-embrionário de Ophyra aenescens (Wiedemann, 1830 (Diptera: Muscidae em Diferentes Dietas, sob Condições de Laboratório

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    José Mario d'Almeida

    1999-01-01

    Full Text Available Post-embryonic Development of Ophyra aenescens (Wiedemann, 1830 (Diptera: Muscidae, in Different Diets, under Laboratory Conditions - The performance of various diets (bovine meat, fish- sardine, shrimp, dog faeces, and banana in Ophyra aenescens development was evaluated. The biology was studied in an incubator (BOD at 27±1oC and 80±10% of RH. The developmental time from larvae to adult, the developmental time and viability of larvae and pupae, the weight of pupae as well as the sex ratio of the emerging adults were also determined. Beef and shrimp were the more efficient diets for rearing O. aenescens.

  6. O complexo holosericeus de Ommatius Wiedemann no Brasil: nova espécie e primeiro registro do grupo ampliatus para o País e novos registros para o grupo holosericeus (Diptera, Asilidae

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    Rodrigo Vieira

    2011-12-01

    Full Text Available O complexo holosericeus de Ommatius Wiedemann no Brasil: nova espécie e primeiro registro do grupo ampliatus para o país e novos registros para o grupo holosericeus (Diptera, Asilidae. Neste trabalho é descrita uma nova espécie de Ommatius Wiedemann, 1821 para o estado do Amazonas, pertencente ao grupo ampliatus. Além disso, são fornecidos novos registros, variações taxonômicas, ilustrações e descrição das estruturas das terminálias masculina e feminina para as espécies do grupo holosericeus.

  7. Chrysomya albiceps (Wiedemann and Hemilucilia segmentaria (Fabricius (Diptera, Calliphoridae used to estimate the postmortem interval in a forensic case in Minas Gerais, Brazil

    Directory of Open Access Journals (Sweden)

    Cecília Kosmann

    2011-12-01

    Full Text Available ABSTRACT. Chrysomya albiceps (Wiedemann and Hemilucilia segmentaria (Fabricius (Diptera, Calliphoridae used to estimate the postmortem interval in a forensic case in Minas Gerais, Brazil. The corpse of a man was found in a Brazilian highland savanna (cerrado in the state of Minas Gerais. Fly larvae were collected at the crime scene and arrived at the laboratory three days afterwards. From the eight pre-pupae, seven adults of Chrysomya albiceps (Wiedemann, 1819 emerged and, from the two larvae, two adults of Hemilucilia segmentaria (Fabricius, 1805 were obtained. As necrophagous insects use corpses as a feeding resource, their development rate can be used as a tool to estimate the postmortem interval. The post-embryonary development stage of the immature collected on the body was estimated as the difference between the total development time and the time required for them to become adults in the lab. The estimated age of the maggots from both species and the minimum postmortem interval were four days. This is the first time that H. segmentaria is used to estimate the postmortem interval in a forensic case.

  8. Preferencia de anastrepha ludens (loew) (diptera: tephritidae) por volátiles de frutos verdes o amarillos de mango y naranja

    OpenAIRE

    María de Jesús García Ramírez; Juan Cibrián Tovar; René Arzufí Barrera; José López Collado; Marcos Soto Hernández

    2004-01-01

    Se evaluó la respuesta de la mosca mexicana de la fruta, Anastrepha ludens (Loew), a volátiles de frutos verdes y amarillos de mango (Mangifera indica L. var. Haden), y naranja (Citrus aurantium L. var. Valencia). Grupos de moscas hembras y machos fueron evaluados en estado de precópula y postcópula. En los resultados de preferencia, los volátiles de los frutos verdes de mango y naranja atrajeron un mayor número de moscas en comparación con las otras opciones (p #8804;0.05). Las hembras y los...

  9. Selección de cepas de hongos entomopatógenos para el manejo de anastrepha obliqua (macquart, 1835) (diptera: tephritidae) en colombia

    OpenAIRE

    Osorio-Fajardo, Armando; Nelson A Canal

    2011-01-01

    Se evaluaron 15 cepas de los hongos entomopatógenos Beauveria bassiana y Metarhizium anisopliae sobre adultos de un día de edad de la mosca de la fruta Anastrepha obliqua. El trabajo se realizó con el fin de seleccionar las cepas más virulentas al insecto y estudiar el efecto sobre los adultos jóvenes cuando el hongo era aplicado antes de la emergencia. Mediante un screening con una concentración de 1x107 conidias/mL se seleccionaron las tres cepas más virulentas, siendo dos de ellas de Beauv...

  10. Biologia da mosca‑das‑frutas sul‑americana em frutos de mirtilo, amoreira‑preta, araçazeiro e pitangueira Biology of South American fruit fly in blueberry, blackberry, strawberry guava, and Surinam cherry crops

    OpenAIRE

    Maicon Bisognin; Dori Edson Nava; Heitor Lisbôa; Alexandre Zandoná Bisognin; Mauro Silveira Garcia; Ricardo Alexandre Valgas; Gabriela Inés Diez‑Rodríguez; Marcos Botton; Luis Eduardo Corrêa Antunes

    2013-01-01

    O objetivo deste trabalho foi descrever a biologia de Anastrepha fraterculus em frutos de mirtilo (Vaccinium ashei), amoreira‑preta (Rubus spp.), araçazeiro (Psidium cattleyanum) e pitangueira (Eugenia uniflora). O experimento foi realizado em laboratório, em condições controladas de temperatura (25±2ºC), umidade relativa (70±10%) e fotófase (12 horas), para determinação dos parâmetros biológicos do inseto nos estágios de desenvolvimento imaturos e adultos. Anastrepha fraterculus comple...

  11. Biologia da mosca‑das‑frutas sul‑americana em frutos de mirtilo, amoreira‑preta, araçazeiro e pitangueira

    OpenAIRE

    Maicon Bisognin; Dori Edson Nava; Heitor Lisbôa; Alexandre Zandoná Bisognin; Mauro Silveira Garcia; Ricardo Alexandre Valgas; Gabriela Inés Diez‑Rodríguez; Marcos Botton; Luis Eduardo Corrêa Antunes

    2013-01-01

    O objetivo deste trabalho foi descrever a biologia de Anastrepha fraterculus em frutos de mirtilo (Vaccinium ashei), amoreira‑preta (Rubus spp.), araçazeiro (Psidium cattleyanum) e pitangueira (Eugenia uniflora). O experimento foi realizado em laboratório, em condições controladas de temperatura (25±2ºC), umidade relativa (70±10%) e fotófase (12 horas), para determinação dos parâmetros biológicos do inseto nos estágios de desenvolvimento imaturos e adultos. Anastrepha fraterculus completa o c...

  12. Moscas frugívoras e seus parasitoides nos municípios de Pelotas e Capão do Leão, Rio Grande do Sul, Brasil Frugivorous flies and their parasitoids in the cities of Pelotas and Capão do Leão, Rio Grande do Sul, Brazil

    Directory of Open Access Journals (Sweden)

    Adrise Medeiros Nunes

    2012-01-01

    Full Text Available As moscas frugívoras (Tephritoidea são as principais pragas da fruticultura de clima temperado no Brasil. O objetivo do presente trabalho foi avaliar a infestação desses dípteros e a ocorrência de seus parasitoides em frutíferas nos municípios de Pelotas e Capão do Leão, localizados na região Sul, nas safras agrícolas de 2007/08 e 2008/09. Foram coletados frutos de araçazeiro-amarelo e vermelho (Psidium cattleianum Sabine, 1821, butiazeiro [Butia capitata (Mart. Becc., 1916], caquizeiro (Diospyros kaki Linnaeus, 1753, cerejeira-do-mato (Eugenia involucrata DC., 1828, goiabeira [Psidium guajava (Linnaeus, 1753], goiabeira-serrana [Acca sellowiana (Berg. Burret, 1941], nespereira [Eriobotrya japonica (Thunb. Lindley, 1822], pessegueiro [Prunus persicae (L. Batsch, 1801], pitangueira (Eugenia uniflora Linnaeus,1753 e uvalheira (Eugenia pyriformis Cambessèdes, 1832. Os frutos foram coletados e transportados para o laboratório, onde foram individualizados e determinados os seguintes parâmetros: índice de infestação das moscas, índice de parasitismo e frequência de indivíduos por espécie de parasitoide. Foram constatadas duas espécies de Tephritidae, Anastrepha fraterculus (Wiedemann, 1830 (90,5% e Ceratitis capitata (Wiedemann, 1824 (9,5% e duas de Lonchaeidae, Neosilba zadolicha McAlpine & Steyskal, 1982 (87,8% e uma espécie ainda não descrita, referida como Neosilba n. sp. 3 (12,2%. Anastrepha fraterculus é a espécie mais abundante nos dois municípios, sendo constatada na maioria das frutíferas coletadas. Caquizeiro e goiabeira foram os hospedeiros que apresentaram o maior índice de infestação por C. capitata. Quanto às espécies de Neosilba, a maior infestação ocorreu em frutos de goiabeira-serrana. Dos parasitoides emergidos, foram identificadas três espécies, sendo duas de Braconidae, Doryctobracon areolatus (Szépligeti, 1911 (52,6% e Opius bellus (Gahan, 1930 (27,5% e uma espécie de Figitidae, Aganaspis

  13. Development and reproductive biology of the egg-pupal parasite, Fopius arisanus in Anastrepha suspensa, a new tephritid host

    International Nuclear Information System (INIS)

    Fopius (=Biosteres) arisanus (Sonan) (=Opius oophilus Fullaway) (Hymenoptera: Braconidae) is a solitary egg parasite (parasitoid) that attacks tephritid fruit fly (Diptera: Tephritidae) eggs and first instars (Haramoto 1953, Clausen et al. 1965, Harris and Okamoto 1991). It completes its development within the host's larva and pupa and emerges from the latter as an adult and as such, is an egg-pupal endoparasite. F. arisanus is known to attack at least seven tephritid fruit fly species (Wharton and Gilstrap 1983) and appears to be the only egg-pupal parasite of tephritids in the Western Hemisphere. It is considered to be the most successful of the parasites that attack the Oriental fruit fly, Bactrocera dorsalis (Hendel) and the Mediterranean fruit fly (Medfly), Ceratitis capitata (Weidmann) in Hawaii (Knipling 1995), resulting in 74-92% of total parasites recovered from both host species (Wong and Ramadan 1987). However, in Malaysia, Palacio et al. (1992) found that F. arisanus was outcompeted by the larval endoparasite, Diachasmimorpha longicaudata (Ashmead) (Hymenoptera: Braconidae) in multiple parasitised B. dorsalis. While several larval parasites of tephritids had been cultured successfully in the laboratory (Ramadan 1991) and utilised in inundative release programmes, F. arisanus proved difficult to maintain in culture. In recent years, a laboratory strain of F. arisanus (termed the 'Harris strain') has been established on B. dorsalis (Harris and Okamoto 1991). Efforts are currently in progress to mass rear this strain on the Medfly and other tephritid pests. F. arisanus was first released into Florida from Hawaii in 1974-75 as a biological control agent against the Caribbean fruit fly (Caribfly) Anastrepha suspensa (Loew) (Diptera: Tephritidae) but this was unsuccessful (Baranowski et al. 1993). Interestingly, it was also introduced into Costa Rica from Hawaii and was subsequently reared from puparia of Anastrepha spp. (Wharton et al. 1981), indicating its

  14. Status of the Caribbean fruit fly, Anastrepha suspensa (Loew), sterile insect technique programme in the state of Florida, USA - November 1996

    International Nuclear Information System (INIS)

    Status of the Caribbean fruit fly, Anastrepha suspensa, Loew, sterile insect technique program in the state of Florida, USA - November 1996. Application of sterilization techniques to Anastrepha suspensa in Florida was conducted as early as 1970 in Key West. In 1988-1990, releases of sterile flies were made in a 20 km2 urban area in southwestern Florida adjacent to commercial citrus. With the intent to integrate a sterile insect technique system within a fly-free management program for the caribfly, additional tests are being conducted both within a major citrus production area and in an isolated urban location of the mid to lower Florida peninsula. Tests at the former site measures the synergistic effect of augmenting sterile fly releases with parasitoids, whereas the latter studies will define the efficacy of reduced numbers of sterile flies released per acre than is standard in medfly and medfly eradication and suppression programs. Discussed here is the progress of an ongoing project to measure the benefits of SIT as it applies to caribfly export protocols. (author)

  15. Genetic method for separation of males and females of the Mediterranean fruit fly, Ceratitis capitata (Wiedemann, 1824) (Diptera: Tephritidae), based on pupal color dimorphisms

    International Nuclear Information System (INIS)

    Pupae of Ceratitis capitata (Wiedemann, 1824) were irradiated with 60 Gy gamma radiation and subsequently the emergent males were crossed with females of recessive mutants on white pupa color (w p/w p). A strain with a translocation between autosomal chromosome number 5, carrier of w p+ dominant gene, and Y chromosome was isolated. By this way the T:Y (w p+) 70 strain with sexual dimorphism based on pupal color was obtained. Cytological examination of the males was carried out to confirm the translocation. The genetic stability was monitored under laboratory conditions during 21 generations. The rates of contaminant females emerged from brown pupae were 0,96 to 4,5% and for males from white pupae these rates were 0,26 to 0,66%. These values presented no definite increase tendency. The origin of contaminant genotypes and the potential for utilization of the sterile male techniques are discussed. (author)

  16. Capture of Anastrepha sororcula (Diptera: Tephritidae in McPhail and Jackson traps with food attractant and virgin adults

    Directory of Open Access Journals (Sweden)

    Christiane dos Santos Felix

    2009-02-01

    Full Text Available This stady evaluated the capture of A. sororcula in the traps baited with the conspecific virgin adults and food attractant in two orchards. The first was the orchard of the Universidade Federal da Grande Dourados (OUFGD and the second, the orchard of the Sindicato Rural de Dourados (OSRD. The capture of A. sororcula in McPhail and Jackson traps was carried out using the corn hydrolysed protein (CHP, control (no flies, virgin males (5, 10 and 15, five virgin females and five virgin couples. The average number of the flies caught in the traps with the corn hydrolysed protein was signifícantly higher than all the other treatments. There was no significant capture of A. sororcula females in the traps baited with the conspecific virgin males, females or the couples.As moscas-das-frutas constituem um grupo de pragas responsáveis por grandes prejuízos econômicos à fruticultura mundial. Anastrepha sororcula Zucchi, é a principal espécie de tefritídeo que ataca a goiaba em Mato Grosso do Sul. O objetivo desta pesquisa foi avaliar a captura de adultos de A. sororcula em armadilhas com atrativo alimentar e adultos virgens, em dois ambientes. Os bioensaios iniciaram-se com a criação de A. sororcula no Laboratório de Insetos Frugívoros da Universidade Federal da Grande Dourados (UFGD. As pesquisas de campo foram desenvolvidas nos pomares da UFGD e do Sindicato Rural de Dourados (SRD-MS. A captura de adultos de A. sororcula em armadilhas McPhail e Jackson foi avaliada para os tratamentos: proteína hidrolisada de milho, testemunha (sem moscas, machos virgens (5, 10 e 15, 5 fêmeas virgens e 5 casais. O número médio de indivíduos capturados nas armadilhas com proteína foi significativamente maior que nos demais tratamentos. O número médio de adultos de A. sororcula, capturado com o tratamento proteína no SRD foi significativamente superior ao do pomar da UFGD. Não ocorreu captura significativa de fêmeas de A. sororcula nas armadilhas com

  17. Effects of gamma radiation on the sterility and behavioral quality of the Caribbean fruit fly, Anastrepha suspensa (Loew) (Diptera:Tephritidae)

    International Nuclear Information System (INIS)

    Pupae of Anastrepha suspensa (Loew) were irradiated 2 days before adult eclosion in an air atmosphere with 15, 20, 25, 30, 50 and 70 Gy of gamma radiation (Co-60). The radiation effects on sterility and other parameters of quality and behavior of males and females of Caribbean fly were established. Males became fully sterile with a dose of 50 Gy and females laid no eggs when exposed to 25 Gy. Radiation had no significant effect on adult eclosion, sex ratio, flight ability and irritability, but female mortality was affected significantly by radiation, showing higher survival rates in low dosage treatments. The mating behavior of the males was reduced significantly by increasing the radiation doses. (author)

  18. Himenópteros parasitóides de larvas de Anastrepha spp. em frutos de carambola (Averrhoa carambola L. na região de Divinópolis, Minas Gerais, Brasil Himenopterous parasitoids of Anastrepha spp. larvae, in star fruit (Averrhoa carambola L. In divinópolis region, Minas Gerais, Brasil

    Directory of Open Access Journals (Sweden)

    Cláudio Gonçalves Silva

    2003-12-01

    Full Text Available Este trabalho foi conduzido com o objetivo de conhecer os parasitóides de moscas-da-fruta na região de Divinópolis-MG. As pupas foram obtidas pelo método de flutuação, sendo individualizadas em cápsulas de gelatina até a emergência das moscas adultas ou de seus parasitóides. A prevalência total de parasitismo foi de 14,8%. Trichopria anastrepha foi a espécie mais comum, com 44,5%.The objective of this work was to identify the parasitoids of fruit flies in Divinópolis-MG region. The pupae were obtained by the flotation method. They were individually placed in gelatin capsules until the emergency of the adult flies or their parasitoids. The overall prevalence of parasitism was 14,8%. Trichopria anastrepha was the most common specie with a frequency of 44,5%.

  19. Evaluating mating compatibility within fruit fly cryptic species complexes and the potential role of sex pheromones in pre-mating isolation

    Czech Academy of Sciences Publication Activity Database

    Juárez, M. L.; Devescovi, F.; Břízová, Radka; Bachmann, G.; Segura, D. F.; Kalinová, Blanka; Fernández, P.; Ruiz, M. J.; Yang, J.; Teal, P. E. A.; Cáceres, C.; Vreysen, M. J. B.; Hendrichs, J.; Vera, M. T.

    -, č. 540 (2015), s. 125-155. ISSN 1313-2989 R&D Projects: GA MŠk 7AMB13AR018 Institutional support: RVO:61388963 Keywords : species delimitation * field cages * Tephritidae * Anastrepha fraterculus * Bactrocera dorsalis Subject RIV: EG - Zoology Impact factor: 0.933, year: 2014 http://zookeys.pensoft.net/articles.php?id=6133

  20. Non-random X chromosome inactivation in an affected twin in a monozygotic twin pair discordant for Wiedemann-Beckwith syndrome

    Energy Technology Data Exchange (ETDEWEB)

    Oestavik, R.E.; Eiklid, K.; Oerstavik, K.H. [Ulleval Univ. Hospital, Oslo (Norway)] [and others

    1995-03-27

    Wiedemann-Beckwith syndrome (WBS) is a syndrome including exomphalos, macroglossia, and generalized overgrowth. The locus has been assigned to 11p15, and genomic imprinting may play a part in the expression of one or more genes involved. Most cases are sporadic. An excess of female monozygotic twins discordant for WBS have been reported, and it has been proposed that this excess could be related to the process of X chromosome inactivation. We have therefore studied X chromosome inactivation in 13-year-old monozygotic twin girls who were discordant for WBS. In addition, both twins had Tourette syndrome. The twins were monochorionic and therefore the result of a late twinning process. This has also been the case in previously reported discordant twin pairs with information on placentation. X chromosome inactivation was determined in DNA from peripheral blood cells by PCR analysis at the androgen receptor locus. The affected twin had a completely skewed X inactivation, where the paternal allele was on the active X chromosome in all cells. The unaffected twin had a moderately skewed X inactivation in the same direction, whereas the mother had a random pattern. Further studies are necessary to establish a possible association between the expression of WBS and X chromosome inactivation. 18 refs., 2 figs., 1 tab.

  1. Thermal and electrical conductivity of approximately 100-nm permalloy, Ni, Co, Al, and Cu films and examination of the Wiedemann-Franz Law

    Science.gov (United States)

    Avery, A. D.; Mason, S. J.; Bassett, D.; Wesenberg, D.; Zink, B. L.

    2015-12-01

    We present measurements of thermal and electrical conductivity of polycrystalline permalloy (Ni-Fe), aluminum, copper, cobalt, and nickel thin films with thickness nitride membrane thermal-isolation platform allows measurements of both transport properties on a single film and an accurate probe of the Wiedemann-Franz (WF) law expected to relate the two. Through careful elimination of possible effects of surface scattering of phonons in the supporting membrane, we find excellent agreement with WF in a thin Ni-Fe film over nearly the entire temperature range from 77 to 325 K. All other materials studied here deviate somewhat from the WF prediction of electronic thermal conductivity with a Lorenz number, L , suppressed from the free-electron value by 10 %to20 % . For Al and Cu we compare the results to predictions of the theoretical expression for the Lorenz number as a function of T . This comparison indicates two different types of deviation from expected behavior. In the Cu film, a higher than expected L at lower T indicates an additional thermal conduction mechanism, while at higher T lower than expected values suggests an additional inelastic scattering mechanism for electrons. We suggest the additional low-T L indicates a phonon contribution to thermal conductivity and consider increased electron-phonon scattering at grain boundaries or surfaces to explain the high-T reduction in L .

  2. Effects of gamma radiation on the sterility and behavioral quality of the caribbean fruit fly, Anastrepha suspensa (Loew (Diptera:Tephritidae Efeitos da radiação gama na esterilização e comportamento da mosca-do-caribe, Anastrepha suspensa (Low (Diptera:Tephritidae

    Directory of Open Access Journals (Sweden)

    J.M.M. Walder

    1993-09-01

    Full Text Available Pupae of Anastrepha suspensa (Loew were irradiated 2 days before adult eclosión in an air atmosphere with 15, 20, 25, 30, 50 and 70 Gy of gamma radiation (Co-60. The radiation effects on sterility and other parameters of quality and behavior of males and females of caribfly were established. Males became fully sterile with a dose of 50 Gy and females laid no eggs when exposed to 25 Gy. Radiation had no significant effect on adult eclosion, sex ratio, flight ability and irritability, but female mortality was affected significantly by radiation, showing higher survival rates in low dosage treatments. The mating behavior of the males was reduced significantly by increasing the radiation doses.Pupas de Anastrepha suspensa (Loew foram irradiadas dois dias antes da emergência dos adultos em atmosfera de ar com as doses de 15, 20, 25, 30, 50 e 70 Gy de radiação gama (Co-60. Foram avaliados os efeitos da radiação sobre a esterilidade e outros parâmetros de qualidade e comportamento de machos e fêmeas de mosca-do-caribe. Machos tornaram-se totalmente estéreis com uma dose de 50 Gy e as fêmeas não ovipositaram quando expostas a 25 Gy. A radiação não teve efeito significativo sobre a taxa de emergência de adultos, na razão sexual, na habilidade de vôo e na irritabilidade desses insetos. Somente a mortalidade das fêmeas foi afetada significativamente pela radiação, causando unia maior sobrevivência nas dosagens mais baixas. A atividade de acasalamento dos machos foi reduzida significativamente com o incremento da dosagem de radiação.

  3. Some Biological studies on the Mediterranean Fruit Fly, Ceratitis capitata (Wiedemann) After Egg Exposure to Acetone, Diethyl Ether, Ethyl Alcohol and Pupal Gamma Irradiation

    International Nuclear Information System (INIS)

    Some biological studies of the Mediterranean fruit fly Ceratitis capitata (Wiedemann) were carried out to help in controlling this pest. Three laboratory experiments were done to study the effect of acetone, diethyl ether and ethyl alcohol separately or combined with gamma radiation through egg treatment or larval diet treatment. The gamma dose (90 Gy) was applied only on the produced pupae after egg or larval diet treatment. Concentrations of 0, 25, 50 and 100% of each chemical were applied for treating eggs to evaluate egg hatch, pupation, adult emergence and sex ratio. larval diet treatment was done by adding 20 ml of each chemical concentration to 500 gm of larval diet.Treating eggs with ethyl alcohol separately increased pupation significantly at all concentration used while adult emergence was insignificantly increased with the lowest concentration only (25%). Treating larval diet with ethyl alcohol alone increased pupation insignificantly and adult emergence was insignificantly decreased at different concentrations. Moreover, treating eggs or larval diet with diethyl ether alone significantly increased sex ratio at 50% and 2% concentration, respectively,while differed insignificantly by applying different chemicals either on eggs or on larval diet. Treating eggs with the three chemicals before gamma irradiation of the produced pupae fluctuated egg hatch insignificantly compared to gamma irradiation alone. By applying diethyl ether on eggs or acetone in the larval diet decreased egg hatch insignificantly. Competitiveness values were insignificantly increased by applying ethyl alcohol on eggs, acetone or ethyl alcohol on eggs, acetone or ethyl alcohol in larval diet before gamma irradiation of the produced pupae. Survivals of the produced adults, treated as eggs or in the larval diet with different chemicals and irradiated as pupae, fluctuated insignificantly

  4. Immatures of Lutzia fuscanus (Wiedemann,1820)(Dipter-a:Culicidae)in ricefields:implications for biological con-trol of vector mosquitoes

    Institute of Scientific and Technical Information of China (English)

    Mihir Kumar Pramanik; Gautam Aditya

    2009-01-01

    Objective:Rice fields are dynamic mosquito larval habitats with assemblage of different predator taxa,inclu-ding the larva of the mosquitoes Lutzia.Entomological surveillance in the ricefields is essential to evaluate the potential of these predators as biological resource to regulate vector mosquito population.In view of this,a sur-vey of ricefields for immatures of different mosquito species including Lutzia was conducted.Methods:Survey of selected ricefields was carried out to evaluate the species composition of mosquitoes.Laboratory evaluation of the immatures of Lutzia mosquitoes was carried out to assess its predation potential using mosquitoes and chi-ronomid as preys.Results:The survey revealed the presence of five mosquito species belonging to the genera Anopheles and Culex and the predatory immatures of the mosquito Lutzia fuscana (Wiedemann,1820).The ra-tio of prey and predatory larva ranged between 1.46 and 4.78 during the study period,with a significant corre-lation on the relative abundance of the larval stages of Lt.fuscanus and Anopheles and Culex larvae.Under la-boratory conditions,a single IV instar larvae of Lt.fuscanus was found to consume on an average 5 to 15 equiv-alent instars of Anopheles sp.and Culex sp.larvae per day depending on its age.The prey consumption re-duced with the larval stage approaching pupation.When provided with equal numbers of chironomid and A-nopheles or Culex larvae,larva of Lt.fuscanus consumed mosquito larvae significantly more compared to chi-ronomids.Conclusion:The survey results and the preliminary study on predation are suggestive of the role of Lt.fuscanus in the regulation of vector mosquito populations naturally in the ricefields.Since Lt.fuscanus is common in many Asian countries,further studies on bioecology will be helpful to justify their use in mosquito control programme.

  5. Comportamento Reprodutivo de Ceratitis capitata Wiedemann (Diptera: Tephritidae: Efeito do Tamanho dos Machos Sobre o Seu Sucesso de Cópula.

    Directory of Open Access Journals (Sweden)

    Alberto Silva Neto

    2012-11-01

    Abstract. This work evaluated the influence of size on the copula success in Ceratitis capitata (Wiedemann. To assure the production of different adult sizes (big and small, two groups of larvae had been fed with different protein concentrations. Subsequently, adult males of both groups had been compared in terms of copula success and amount of males who showed the first step of courtship (emission of sexual pheromone. The copula success in laboratory was evaluated with males in some ratios, which the number of big males with five days of life (an unique male in relation to a gradual increase of small males with same age kept constant. The tested ratios had been 1:1, 1:2, 1:3, 1:4, 1:5, and 1:10. In the experiments of copula success in the 1:1 ratio and the ones of pheromone emission, they had been tested small male of different ages (five, nine or 13 days, whereas the age of the big males kept constant (five days. Experiments of copula success in the 1:1 ratio had been also carried through in field cage. It was prove that the big males had taken advantage in all the parameters analyzed in laboratory, emitting pheromone and having a bigger copula success, exactly when the age of the small males was varied. The size effect was so significant, that in the ratio of 1 big male for 10 small males, the females had still chosen the big males. In field cage, the results had been similar to the ones of laboratory.

  6. Natural enemies of corn silk flies: Euxesta Stigmatias (Loew, Chaetopsis Massyla (Walker and Eumecosommyia Nubila (Wiedemann in Guasave Sinaloa, México

    Directory of Open Access Journals (Sweden)

    Jesús Ricardo Camacho Báez

    2012-09-01

    Full Text Available The flies species complex of corn, known as “stigma flies”, including the corn-silk fly, Euxesta stigmatias (Loew,Chaetopsis massyla (Walker and Eumecosommyia nubila (Wiedemann, they have became an important pest problem in the state of Sinaloa. The damage is associated with decaying symptoms has severely affected the quality and yield of the crop. The objectives of this research project are to report sampling results on the presence of natural sources of biological control agents (parasitoids, predators, and entomopathogenic nematodes with biological control potential capacity to manage the populations of this flies species complex. This research was conducted during the spring-summer growingseason of 2011. Samples where collected for eight continuous weeks during the corn cob development and maturation. The sampled corn variety was the hybrid Asgrow Garañon. We collected predominat two wasp species belonging to the order Hymenoptera, families Pteromalidae and Eurytomidae, which are parasites to the pupa stage of corn silk fly. In addition, a wasp from the genus Spalangia spp. The latter has shown a stronger natural parasitic effect of 47% on Euxesta stigmatias (Loew. We also observed a population of the pirate bug Orius insidiosus (Say during the months of March-July, attacking several developmental stages of the fly. Soil samples where also processed to isolate and to identify populations of possible entomopathogenic nematodes (EPN. Larvae of Galleria melonella L. where utilized as nematode traps. Populations of nematodes from three different sites where isolated from CIIDIR-IPN Unidad Sinaloa, Guasave and Maximiliano R. Lopez, all located in the Guasave. The isolated populations are included in the Rhabditidae family, genus and specie identification is still in progress. The natural enemies found have shown potential capacity to asseses them asbiological control agents on the corn flies complex.

  7. Comparison of Anastrepha ludens (Diptera: Tephritidae) Bisexual and Genetic Sexing (Tapachula-7) Strains: Effect of Hypoxia, Fly Density, Chilling Period, and Food Type on Fly Quality.

    Science.gov (United States)

    Arredondo, José; Ruiz, Lía; Hernández, Emilio; Montoya, Pablo; Díaz-Fleischer, Francisco

    2016-04-01

    The use of genetic sexing strain (GSS) insects in the sterile insect technique (SIT) makes necessary the revision of quality parameters of some stressful steps used during the packing process for aerial release because of possible differences in tolerance between fly strains. Here, we determined the effect of three periods of hypoxia (12, 24, and 36 h at pupal stage), three cage densities (1.0, 1.3, and 1.5 flies/cm2), two different foods (protein/sugar (1/24) and Mubarqui), and three chilling times (20 min [control], 90, and 180 min) on the quality parameters of flies of two Anastrepha ludens (Loew) strains (bisexual and GSS Tapachula-7). In general, the response to stressful conditions of both fly strains was qualitatively equivalent but quantitatively different, as flies of both strains responded equally to the stressful factors; however, flies of Tapachula-7 exhibited lower quality parameters than the control flies. Thus, hypoxia affected the flying ability but not the emergence or longevity of flies. The food type affected the adult weight; protein/sugar produced heavier flies that also survived longer and had a greater mating propensity. Flies under the lowest density were better fliers that those at the other two densities. Increasing chilling time reduced flight ability but not longevity or mating propensity. The implications of these findings for the use of A. ludens GSS in SIT programs are discussed herein. PMID:26685109

  8. Regional-Scale Spatio-Temporal Analysis of Anastrepha ludens (Diptera: Tephritidae) Populations in the Citrus Region of Santa Engracia, Tamaulipas, Mexico.

    Science.gov (United States)

    Vanoye-Eligio, Venancio; Barrientos-Lozano, Ludivina; Pérez-Castañeda, Roberto; Gaona-García, Griselda; Lara-Villalon, Manuel

    2015-08-01

    Large citrus areas in Tamaulipas are affected by Anastrepha ludens (Loew) populations. Here we report the findings of a spatio-temporal analysis of A. ludens on an extended citrus area from 2008-2011 aimed at analyzing the probabilities of A. ludens infestation and developing an infestation risk classification for citrus production. A Geographic Information System combined with the indicator kriging geostatistics technique was used to assess A. ludens adult densities in the spring and fall. During the spring, our models predicted higher probabilities of infestation in the western region, close to the Sierra Madre Oriental, than in the east. Although a patchy distribution of probabilities was observed in the fall, there was a trend toward higher probabilities of infestation in the west than east. The final raster models summarized the probability maps using a three-tiered infestation risk classification (low-, medium-, and high risk). These models confirmed the greater infestation risk in the west in both seasons. These risk classification data support arguments for the use of the sterile insect technique and biological control in this extended citrus area and will have practical implications for the area-wide integrated pest management carried out by the National Program Against Fruit Flies in Tamaulipas, Mexico. PMID:26470306

  9. Can consumption of antioxidant rich mushrooms extend longevity?: antioxidant activity of Pleurotus spp. and its effects on Mexican fruit flies' (Anastrepha ludens) longevity.

    Science.gov (United States)

    Sánchez, José E; Jiménez-Pérez, Gabriela; Liedo, Pablo

    2015-12-01

    The variability of antioxidant capacity of 14 strains of the edible oyster mushroom Pleurotus spp. was determined, and the effect of selected mushroom supplements on the longevity of the Mexican fruit fly, Anastrepha ludens, was evaluated. The antioxidant capacity of the fruiting bodies was determined by three different methods, measuring the free radical scavenging activity of methanolic extracts, the OH radical scavenging capacity, and the total phenol content. The inhibition percentage of the DPPH radical varied between 32.6 and 85.7% and total phenols varied between 30.6 and 143.3 mg/g. The strains with the highest (Pleurotus djamor ECS-0142) and lowest (Pleurotus ostreatus ECS-1123) antioxidant capacity were selected to study their effect on the survival, life expectancy, and mortality of the Mexican fruit fly A. ludens. The results demonstrated differing responses between male and female flies. High concentrations of mushrooms (5 and 20%) in the diet resulted in a decrease in life expectancy. However, flies on the diet with 1% P. djamor ECS-0142 showed slightly but significantly greater survival than those on the control diet. The possible adverse effect of protein content in mushroom extracts is discussed. PMID:26499817

  10. Acoustic courtship songs in males of the fruit fly Anastrepha ludens (Diptera: Tephritidae associated with geography, mass rearing and courtship success

    Directory of Open Access Journals (Sweden)

    R.D Briceño

    2009-11-01

    Full Text Available The Sterile Insect Technique (SIT has been used successfully to control or eradicate fruit flies. The commonly observed inferiority of mass-reared males, compared with wild males, when they are paired with wild females, is apparently due to their inadequate courtship. Anastrepha ludens males produce two types of wing vibration during courtship and mating, the "calling sound" and the "premating or precopulatory sound". There were clear differences in the calling songs between successful and unsuccessful courtships in sterile (irradiated and fertile Mexican flies. Among sterile flies, successful males produce longer buzzes, shorter interpulses and a higher power spectrum in the signal. Fertile flies showed the same trend. For mating songs a significant difference occurred in two parameters: power spectrum between sterile and fertile flies with respect to the type of song, and the signal duration and intensity were greater in non-irradiated flies. Calling songs of wild flies compared with laboratory grown flies from Mexico had shorter interpulses, longer pulses, and a greater power spectrum. However, in the case of premating songs, the only difference was in the intensity, which was significantly greater in wild males. An unexpected result was not observing pulses during pheromone deposition in wild males from Costa Rica. Comparing the premating songs of wild flies from Costa Rica and Mexico, no significant differences were observed in the duration, and the intensity of the signal was slightly greater in flies from Mexico. Rev. Biol. Trop. 57 (Suppl. 1: 257-265. Epub 2009 November 30.

  11. Short-term anoxic conditioning hormesis boosts antioxidant defenses, lowers oxidative damage following irradiation and enhances male sexual performance in the Caribbean fruit fly, Anastrepha suspensa

    International Nuclear Information System (INIS)

    Most organisms are repeatedly exposed to oxidative stress from multiple sources throughout their lifetimes, potentially affecting all aspects of organismal performance. Here we test whether exposure to a conditioning bout of anoxia early in adulthood induces a hormetic response that confers resistance to oxidative stress and enhances male sexual performance later in life in the Caribbean fruit fly, Anastrepha suspensa. Anoxic conditioning of adults prior to emergence led to an increase in antioxidant capacity driven by mitochondrial superoxide dismutase and glutathione peroxidase. When exposed to gamma irradiation, a strong oxidative stressor, males that received anoxic conditioning had lower lipid and protein oxidative damage at sexual maturity. Anoxia conditioning led to greater male sexual competitiveness compared with unconditioned males when both were irradiated, although there was no effect of anoxia conditioning on mating competitiveness in unirradiated males. Anoxia also led to higher adult emergence rates and greater flight ability in irradiation-stressed flies while preserving steriity. Thus, hormetic treatments that increased antioxidant enzyme activity also improved male performance after irradiation, suggesting that antioxidant enzymes play an important role in mediating the relationship between oxidative stress and sexual selection. Furthermore, our work has important applied implications for the sterile insect technique (SIT), an environmentally friendly method of insect pest control where males are sterilized by irradiation and deployed in the field to disrupt pest populations via mating. We suggest that hormetic treatments specifically designed to enhance antioxidant activity may produce more sexually competitive sterile males, thus improving the efficacy and economy of SIT programs. (author)

  12. Determination of optimum irradiation doses in respect of the competitiveness of sterile males of Anastrepha ludens (Loew); attraction to colour traps and to sexual attractants

    International Nuclear Information System (INIS)

    Fruit cultivation is of great socio-economic importance in Mexico and covers an area of 650,000 ha. One of the most important pests is the Mexican fruit fly Anastrepha ludens (Loew). Its study is of topical importance since the Directorate General of Plant Health (SARH) and the United States Department of Agriculture have embarked on a joint control and eradication programme through APHIS. The results relate mainly to the effect of gamma radiation on sexual competitiveness and behaviour. The radiation was applied in the pupal phase three days before emergence, and sterility and sexual competitiveness were studied in the laboratory and in the field. The following conclusions were reached: (a) The males showed 90% sterility at 4 krad and practically 100% at 6 krad. A dose between 3 and 5 krad may be sufficient to obtain a high degree of sterility with a minimum of effect on sexual competitiveness; (b) 'solar' yellow increases the efficiency of traps by a factor of three to five; (c) the live-male bait attracts the greatest number of flies of both sexes, and the male was found to secrete a sex pheromone and an aggregation pheromone; (d) in all cases a significantly higher number of normal than irradiated flies were captured in the traps. This at least shows that the dose of 6 krad affects the adults' flying capacity or perception of attractants. Colouring also reduced the number of flies attracted. (author)

  13. The presence of the sexual partner and nutritional condition alter the Anastrepha obliqua MacQuart (Diptera: Tephritidae) protein discrimination threshold

    International Nuclear Information System (INIS)

    The minimum protein amount that Anastrepha obliqua MacQuart can detect in its alimentary source is variable, though the causes of such variation are not very well known. In this study, the authors tested whether the sexual partners nutritional condition and presence devoid of direct contact alter the A. obliqua protein discrimination threshold. Male and female insects were assigned to groups as follows: (1) newly emerged, (2) deprived of protein source (yeast) during 18 days, (3) non-yeast-deprived during 18 days, (4) yeast-deprived in the presence of equally yeast-deprived sexual partners, (5) yeast-deprived in the presence of non-yeast-deprived partners, (6) non-yeast-deprived with yeast-deprived partners and (7) non-yeast-deprived with non-yeast-deprived partners. The sexual partners were maintained apart by a transparent plastic screen with small holes. Not only the males presence but also their nutritional condition have altered the females discrimination threshold, particularly when the females were deprived and when non- deprived females cohabited with deprived males. Therefore, the females threshold was determined by their own nutritional condition in addition to recognition of the males nutritional condition. The males discrimination threshold was higher for non-deprived subjects than for the deprived ones. The occurrence of responses in the absence of direct contact between males and females has shown that they may use a chemical mechanism for mutual recognition of the sexual partner nutritional condition. (author)

  14. Optimización del proceso de cría de Anastrepha ludens Loew (Diptera: Tephritidae) utilizando una dieta larvaria a base de almidón pre-gelatinizado

    OpenAIRE

    J. Pedro RIVERA; Emilio HERNÁNDEZ; Jorge TOLEDO; Bigail BRAVO; Salvador, Miguel; Yeudiel GÓMEZ

    2012-01-01

    La dieta larvaria para cría masiva de la mosca mexicana de la fruta, Anastrepha ludens (Loew) representa el 30% del costo de producción y genera una gran cantidad de desechos sólidos con alto contenido de proteína como resultado de un bajo aprovechamiento por las larvas. Para reducir los costos de producción y la cantidad de desechos sólidos generados, se desarrolló una dieta texturizada con almidón pre-gelatinizado, con la cual se incrementó la producción en comparación con una dieta estanda...

  15. Machos Virgens e Acasalados de Ceratitis capitata Wiedemann (Diptera: Tephritidae Apresentam o mesmo Sucesso de Cópula e a mesma Capacidade de Inibição de Recópula das Fêmeas?

    Directory of Open Access Journals (Sweden)

    Luiza Santana

    2014-08-01

    Virgin and Mated Males of Ceratitis capitata Wiedemann (Diptera: Tephritidae Have the Same Mating Success and the Same Ability to Inhibit Female Remating? Abstract. Ceratitis capitata Wiedemann is a polyphagous species that damages fruits and affects their production and consumption. One of the techniques to manage this pest is the Sterile Insect Technique, which consists in releasing sterile males in nature to compete with wild males for mating. The success of this technique is associated with the ability of sterile male in being selected by the female and in preventing female remating with other males. This paper aims to evaluate the influence of male reproductive status in mating success and in female remating inhibition. Tests for evaluating the latency to mate and copula duration were performed to evaluate latency to mate and copula duration based on different male status. In remating inhibition tests, females mated with virgin and mated males, were exposed to other males one day after the first mating so the rate of remating could be evaluated. The results showed that males of different reproductive status had no differences in mating success and in female remating inhibition. The latency to mate and copula duration were similar for both male status as well. Our results suggest that, assuming that the sterile males have the same basic biology of no sterile males, in SIT, after released in nature, mated males can have the same success in mating and female remating inhibition as virgin males.

  16. Evaluation of Quality Production Parameters and Mating Behavior of Novel Genetic Sexing Strains of the Mediterranean Fruit Fly Ceratitis capitata (Wiedemann) (Diptera: Tephritidae)

    Science.gov (United States)

    Haq, Ihsan ul; Wornayporn, Viwat; Ahmad, Sohel; Sto Tomas, Ulysses; Dammalage, Thilakasiri; Gembinsky, Keke; Franz, Gerald; Cáceres, Carlos; Vreysen, Marc J. B.

    2016-01-01

    The Mediterranean fruit fly Ceratitis capitata (Wiedemann) (Diptera: Tephritidae) is one of the most important pest of fruits and vegetables in tropical and subtropical countries. The sterile insect technique (SIT) as a component of area-wide integrated pest management (AW-IPM) approaches is being used for the successful management of this pest. VIENNA 8 is a genetic sexing strain (GSS) that has a white pupae (wp) and temperature sensitive lethal (tsl) mutation, the latter killing all female embryos when eggs are exposed to high temperatures (34°C). The use of this GSS permits production and the release of only males which has increased the cost effectiveness of the SIT several fold for this pest. An efficient method of identification of recaptured sterile males can further increase the cost effectiveness of the SIT for this pest. Therefore, VIENNA 8-Sergeant2 (Sr2) strain and the transgenic strain VIENNA 8–1260 having visible markers were constructed. All three strains were evaluated for egg production, egg hatch, and egg sterility parameters under semi mass-rearing conditions and mating competitiveness in field cages. VIENNA 8–1260 females produced significantly fewer eggs as compared with the two other strains, which produced similar numbers of eggs. However, egg hatch of all strains was similar. Egg hatch of eggs produced by untreated females that had mated with adult males that had been irradiated with 100 Gy as pupae 2 days before emergence, was different for the three strains, i.e., egg hatch of 0.63%, 0.77%, 0.89% for VIENNA 8, VIENNA 8–1260, and VIENNA 8-Sr2, respectively. Differences in male mating competitiveness of the three strains against wild-type males were gradually reduced with successive generations under semi mass-rearing conditions. However, VIENNA 8 males adapted faster to laboratory conditions as compared with VIENNA 8-Sr2 and VIENNA 8–1260 males with respect to mating competitiveness. VIENNA 8 males of the F10 generation were

  17. Evaluation of Quality Production Parameters and Mating Behavior of Novel Genetic Sexing Strains of the Mediterranean Fruit Fly Ceratitis capitata (Wiedemann (Diptera: Tephritidae.

    Directory of Open Access Journals (Sweden)

    Polychronis Rempoulakis

    Full Text Available The Mediterranean fruit fly Ceratitis capitata (Wiedemann (Diptera: Tephritidae is one of the most important pest of fruits and vegetables in tropical and subtropical countries. The sterile insect technique (SIT as a component of area-wide integrated pest management (AW-IPM approaches is being used for the successful management of this pest. VIENNA 8 is a genetic sexing strain (GSS that has a white pupae (wp and temperature sensitive lethal (tsl mutation, the latter killing all female embryos when eggs are exposed to high temperatures (34°C. The use of this GSS permits production and the release of only males which has increased the cost effectiveness of the SIT several fold for this pest. An efficient method of identification of recaptured sterile males can further increase the cost effectiveness of the SIT for this pest. Therefore, VIENNA 8-Sergeant2 (Sr2 strain and the transgenic strain VIENNA 8-1260 having visible markers were constructed. All three strains were evaluated for egg production, egg hatch, and egg sterility parameters under semi mass-rearing conditions and mating competitiveness in field cages. VIENNA 8-1260 females produced significantly fewer eggs as compared with the two other strains, which produced similar numbers of eggs. However, egg hatch of all strains was similar. Egg hatch of eggs produced by untreated females that had mated with adult males that had been irradiated with 100 Gy as pupae 2 days before emergence, was different for the three strains, i.e., egg hatch of 0.63%, 0.77%, 0.89% for VIENNA 8, VIENNA 8-1260, and VIENNA 8-Sr2, respectively. Differences in male mating competitiveness of the three strains against wild-type males were gradually reduced with successive generations under semi mass-rearing conditions. However, VIENNA 8 males adapted faster to laboratory conditions as compared with VIENNA 8-Sr2 and VIENNA 8-1260 males with respect to mating competitiveness. VIENNA 8 males of the F10 generation were

  18. Evaluation of Quality Production Parameters and Mating Behavior of Novel Genetic Sexing Strains of the Mediterranean Fruit Fly Ceratitis capitata (Wiedemann) (Diptera: Tephritidae).

    Science.gov (United States)

    Rempoulakis, Polychronis; Taret, Gustavo; Haq, Ihsan Ul; Wornayporn, Viwat; Ahmad, Sohel; Sto Tomas, Ulysses; Dammalage, Thilakasiri; Gembinsky, Keke; Franz, Gerald; Cáceres, Carlos; Vreysen, Marc J B

    2016-01-01

    The Mediterranean fruit fly Ceratitis capitata (Wiedemann) (Diptera: Tephritidae) is one of the most important pest of fruits and vegetables in tropical and subtropical countries. The sterile insect technique (SIT) as a component of area-wide integrated pest management (AW-IPM) approaches is being used for the successful management of this pest. VIENNA 8 is a genetic sexing strain (GSS) that has a white pupae (wp) and temperature sensitive lethal (tsl) mutation, the latter killing all female embryos when eggs are exposed to high temperatures (34°C). The use of this GSS permits production and the release of only males which has increased the cost effectiveness of the SIT several fold for this pest. An efficient method of identification of recaptured sterile males can further increase the cost effectiveness of the SIT for this pest. Therefore, VIENNA 8-Sergeant2 (Sr2) strain and the transgenic strain VIENNA 8-1260 having visible markers were constructed. All three strains were evaluated for egg production, egg hatch, and egg sterility parameters under semi mass-rearing conditions and mating competitiveness in field cages. VIENNA 8-1260 females produced significantly fewer eggs as compared with the two other strains, which produced similar numbers of eggs. However, egg hatch of all strains was similar. Egg hatch of eggs produced by untreated females that had mated with adult males that had been irradiated with 100 Gy as pupae 2 days before emergence, was different for the three strains, i.e., egg hatch of 0.63%, 0.77%, 0.89% for VIENNA 8, VIENNA 8-1260, and VIENNA 8-Sr2, respectively. Differences in male mating competitiveness of the three strains against wild-type males were gradually reduced with successive generations under semi mass-rearing conditions. However, VIENNA 8 males adapted faster to laboratory conditions as compared with VIENNA 8-Sr2 and VIENNA 8-1260 males with respect to mating competitiveness. VIENNA 8 males of the F10 generation were equally

  19. Long-term impact of tongue reduction on speech intelligibility, articulation and oromyofunctional behaviour in a child with Beckwith-Wiedemann syndrome.

    Science.gov (United States)

    Van Lierde, K M; Mortier, G; Huysman, E; Vermeersch, H

    2010-03-01

    The purpose of the present case study was to determine the long-term impact of partial glossectomy (using the keyhole technique) on overall speech intelligibility and articulation in a Dutch-speaking child with Beckwith-Wiedemann syndrome (BWS). Furthermore the present study is meant as a contribution to the further delineation of the phonation, resonance, articulation and language characteristics and oral behaviour in a child with BWS. Detailed information on the speech and language characteristics of children with BWS may lead to better guidance of pediatric management programs. The child's speech was assessed 9 years after partial glossectomy with regard to ENT characteristics, overall intelligibility (perceptual consensus evaluation), articulation (phonetic and phonological errors), voice (videostroboscopy, vocal quality), resonance (perceptual, nasometric assessment), language (expressive and receptive) and oral behaviour. A class III malocclusion, an anterior open bite, diastema, overangulation of lower incisors and an enlarged but normal symmetric shaped tongue were present. The overall speech intelligibility improved from severely impaired (presurgical) to slightly impaired (5 months post-glossectomy) to normal (9 years postoperative). Comparative phonetic inventory showed a remarkable improvement of articulation. Nine years post-glossectomy three types of distortions seemed to predominate: a rhotacism and sigmatism and the substitution of the alveolar /z/. Oral behaviour, vocal characteristics and resonance were normal, but problems with expressive syntactic abilities were present. The long-term impact of partial glossectomy, using the keyhole technique (preserving the vascularity and the nervous input of the remaining intrinsic tongue muscles), on speech intelligibility, articulation, and oral behaviour in this Dutch-speaking child with congenital macroglossia can be regarded as successful. It is not clear how these expressive syntactical problems

  20. Acoustic courtship songs in males of the fruit fly Anastrepha ludens (Diptera: Tephritidae associated with geography, mass rearing and courtship success

    Directory of Open Access Journals (Sweden)

    R.D Briceño

    2009-11-01

    Full Text Available The Sterile Insect Technique (SIT has been used successfully to control or eradicate fruit flies. The commonly observed inferiority of mass-reared males, compared with wild males, when they are paired with wild females, is apparently due to their inadequate courtship. Anastrepha ludens males produce two types of wing vibration during courtship and mating, the "calling sound" and the "premating or precopulatory sound". There were clear differences in the calling songs between successful and unsuccessful courtships in sterile (irradiated and fertile Mexican flies. Among sterile flies, successful males produce longer buzzes, shorter interpulses and a higher power spectrum in the signal. Fertile flies showed the same trend. For mating songs a significant difference occurred in two parameters: power spectrum between sterile and fertile flies with respect to the type of song, and the signal duration and intensity were greater in non-irradiated flies. Calling songs of wild flies compared with laboratory grown flies from Mexico had shorter interpulses, longer pulses, and a greater power spectrum. However, in the case of premating songs, the only difference was in the intensity, which was significantly greater in wild males. An unexpected result was not observing pulses during pheromone deposition in wild males from Costa Rica. Comparing the premating songs of wild flies from Costa Rica and Mexico, no significant differences were observed in the duration, and the intensity of the signal was slightly greater in flies from Mexico. Rev. Biol. Trop. 57 (Suppl. 1: 257-265. Epub 2009 November 30.La técnica estéril del insecto (SIT se ha utilizado con éxito para controlar o para suprimir las moscas de fruta y su impacto en los cultivos. La inferioridad comúnmente observada de machos criados masivamente, comparada con los machos silvestres, cuando se aparean con las hembras silvestres es al parecer debido a su inadecuado cortejo. Los machos de Anastrepha

  1. Sexual competitiveness and compatibility between mass-reared sterile flies and wild populations of Anastrepha Ludens (Diptera: Tephritidae) from different regions in Mexico

    International Nuclear Information System (INIS)

    The mass-reared colony of Anastrepha ludens (Loew) currently used in Mexico for suppression of the Mexican fruit fly has been in use for over 10 years. Sterile flies are released into a wide range of environmental conditions as part of an integrated area-wide approach to suppress diverse populations of this pest in the Mexican Republic. This paper assesses the performance of the sterile flies interacting with wild populations from the different environments. We investigated the sexual compatibility and competitiveness of the sterile flies when competing with wild populations from 6 representatives Mexican states: Nuevo Leon, Tamaulipas, Sinaloa, Nayarit, Michoacan, and Chiapas. Results show that the males of the wild populations differed in the time to the onset and peak of sexual activity. Nevertheless, the index of sexual isolation (ISI) reflected sexual compatibility between the populations and the mass-reared strain, indicating that the sterile individuals mate satisfactorily with the wild populations from the 6 states. The male relative performance index (MRPI) showed that the sterile male is as effective in copulating as the wild males. The female relative performance index (FRPI) reflected a general tendency for wild females to copulate in greater proportion than the sterile females, except for the strains from Tamaulipas and Chiapas. In general, the lower participation of the sterile females in copulation increases the possibilities of sterile males to mate with wild females. The relative sterility index (RSI) showed that the acceptance by wild females of the sterile males (25-55%) was similar to that of wild males. Females of the Chiapas strain showed the lowest acceptance of sterile males. Finally, the results obtained in the Fried test (which measures induced sterility in eggs) showed a competitiveness coefficient ranging from 0.2 to 0.5. This suggests that sterile males successfully compete and are compatible with flies from different geographic origins

  2. Sexual behavior and male volatile compounds in wild and mass-reared strains of the Mexican fruit fly Anastrepha ludens (Diptera: Tephritidae) held under different colony management regimes.

    Science.gov (United States)

    Bosa, Carlos Felipe; Cruz-López, Leopoldo; Zepeda-Cisneros, Cristina Silvia; Valle-Mora, Javier; Guillén-Navarro, Karina; Liedo, Pablo

    2016-02-01

    We compared the calling and mating behavior and volatile release of wild males Anastrepha ludens (Loew) with males from 4 mass-reared strains: (i) a standard mass-reared colony (control), (ii) a genetic sexing strain (Tap-7), (iii) a colony started from males selected on their survival and mating competitiveness abilities (selected), and (iv) a hybrid colony started by crossing wild males with control females. Selected and wild males were more competitive, achieving more matings under field cage conditions. Mass-reared strains showed higher percentages of pheromone calling males under field conditions except for Tap-7 males, which showed the highest percentages of pheromone calling males under laboratory cage conditions. For mature males of all strains, field-cage calling behavior increased during the last hour before sunset, with almost a 2 fold increase exhibited by wild males during the last half hour. The highest peak mating activity of the 4 mass-reared strains occurred 30 min earlier than for wild males. By means of solid phase microextraction (SPME) plus gas chromatography-mass spectrometry (GC-MS), the composition of volatiles released by males was analyzed and quantified. Wild males emitted significantly less amounts of (E,E)-α-farnesene but emitted significantly more amounts of (E,E)-suspensolide as they aged than mass-reared males. Within the 4 mass-reared strains, Tap-7 released significantly more amounts of (E,E)-α-farnesene and hybrid more of (E,E)-suspensolide. Differences in chemical composition could be explained by the intrinsic characteristics of the strains and the colony management regimes. Characterization of calling behavior and age changes of volatile composition between wild and mass-reared strains could explain the differences in mating competitiveness and may be useful for optimizing the sterile insect technique in A. ludens. PMID:25339372

  3. Improved attractants for Mediterranean fruit fly, Ceratitis capitata (Wiedemann) and olive fruit fly, Bactrocera oleae(Gmelin): Two years data evaluating the responses of wild fly populations in 3 Southern Italy locations

    International Nuclear Information System (INIS)

    Tests were conducted during 2003 and 2004 on wild Mediterranean fruit flies (medfly), Ceratitis capiata (Wiedemann) and on olive fruit flies, Bactrocera oleae (Gmelin), in three locations in southern Italy. The tests with medfly were carried out in a citrus orchard in Sicily during 2003, from the end of September until the end of November, and in a peach orchard in Basilicata during the summer of 2004; while tests on olive fruit fly have been carried out both years in the same location in Apulia, starting in late August and finishing at the end of November. Among the 5 different baits used for the control of medfly in Sicily, the first records on the captures started during the 3rd week (mid October). Treatments B and C (AA+PT+TMA and AA+TMA, respectively) showed the best scores compared to the others and to the control (NuLure). Evaluating the captures among the 6 different baits utilized for the control of olive fruit fly in Apulia, first records started during the 3rd week (begin of September), and the best scores were detected on the traps with NuLure, showing a sex ratio in the captures of 1:1. Interesting data were recorded both years with the pheromone treatment (side experiment), showing a performance extremely high compared even with NuLure. (author)

  4. Biologia da mosca‑das‑frutas sul‑americana em frutos de mirtilo, amoreira‑preta, araçazeiro e pitangueira Biology of South American fruit fly in blueberry, blackberry, strawberry guava, and Surinam cherry crops

    Directory of Open Access Journals (Sweden)

    Maicon Bisognin

    2013-02-01

    Full Text Available O objetivo deste trabalho foi descrever a biologia de Anastrepha fraterculus em frutos de mirtilo (Vaccinium ashei, amoreira‑preta (Rubus spp., araçazeiro (Psidium cattleyanum e pitangueira (Eugenia uniflora. O experimento foi realizado em laboratório, em condições controladas de temperatura (25±2ºC, umidade relativa (70±10% e fotófase (12 horas, para determinação dos parâmetros biológicos do inseto nos estágios de desenvolvimento imaturos e adultos. Anastrepha fraterculus completa o ciclo biológico em todos hospedeiros estudados, embora os frutos nativos (pitanga e araçá ofereçam melhores condições para seu desenvolvimento. Os parâmetros biológicos determinados para as fases imaturas foram semelhantes nos quatro hospedeiros. Insetos criados em pitanga e araçá apresentam, na fase adulta, maior período de oviposição, fecundidade e longevidade de fêmeas, em comparação aos criados em mirtilo e amora‑preta. O ritmo diário de oviposição é mais prolongado e uniforme nos insetos criados em araçá e pitanga, o que mostra que A. fraterculus está mais bem adaptada a estas frutas, nativas da região Sul.The objective of this work was to describe the biology of Anastrepha fraterculus in blueberry (Vaccinium ashei, blackberry (Rubus spp., strawberry guava (Psidium cattleyanum and Surinam cherry (Eugenia uniflora fruits. The experiment was carried out in laboratory under controlled conditions of temperature (25±2ºC, relative humidity (70±10%, and photophase (12 hours to determine insect biological parameters in immature and adult development stages. Anastrepha fraterculus finishes its biological cycle in all studied hosts; however, the Brazilian native fruits (strawberry guava and Surinam cherry provide better conditions for development of the insect. Biological parameters determined for immature development stadium were similar in the four hosts. Insects reared in Surinam cherry and strawberry guava showed, in the

  5. Biologia da mosca‑das‑frutas sul‑americana em frutos de mirtilo, amoreira‑preta, araçazeiro e pitangueira

    Directory of Open Access Journals (Sweden)

    Maicon Bisognin

    2013-02-01

    Full Text Available O objetivo deste trabalho foi descrever a biologia de Anastrepha fraterculus em frutos de mirtilo (Vaccinium ashei, amoreira‑preta (Rubus spp., araçazeiro (Psidium cattleyanum e pitangueira (Eugenia uniflora. O experimento foi realizado em laboratório, em condições controladas de temperatura (25±2ºC, umidade relativa (70±10% e fotófase (12 horas, para determinação dos parâmetros biológicos do inseto nos estágios de desenvolvimento imaturos e adultos. Anastrepha fraterculus completa o ciclo biológico em todos hospedeiros estudados, embora os frutos nativos (pitanga e araçá ofereçam melhores condições para seu desenvolvimento. Os parâmetros biológicos determinados para as fases imaturas foram semelhantes nos quatro hospedeiros. Insetos criados em pitanga e araçá apresentam, na fase adulta, maior período de oviposição, fecundidade e longevidade de fêmeas, em comparação aos criados em mirtilo e amora‑preta. O ritmo diário de oviposição é mais prolongado e uniforme nos insetos criados em araçá e pitanga, o que mostra que A. fraterculus está mais bem adaptada a estas frutas, nativas da região Sul.

  6. Larval endoparasitoids (Hymenoptera of frugivorous flies (Diptera, Tephritoidea reared from fruits of the cerrado of the State of Mato Grosso do Sul , Brazil

    Directory of Open Access Journals (Sweden)

    Manoel A. Uchôa-Fernandes

    2003-01-01

    Full Text Available This paper presents a five years survey of endoparasitoids obtained from the larvae of frugivorous Tephritidae and Lonchaeidae flies. The insects were reared from cultivated and wild fruits collected in areas of the cerrado in the State of Mato Grosso do Sul, Brazil. The flies obtained from 14 host fruit species were eight Anastrepha species, Ceratitis capitata (Wiedemann, 1824 (Tephritidae; Dasiops sp. and Neosilba spp. (Lonchaeidae. Eleven parasitoid species were collected: Braconidae - Asobara anastrephae (Muesebek, 1958, Doryctobracon areolatus (Szépligeti, 1911, D. fluminensis (Costa Lima, 1938, Opius bellus Gahan, 1930 and Utetes anastrephae (Viereck, 1913; Figitidae - Aganaspis nordlanderi Wharton, 1998, Lopheucoila anastrephae (Rhower, 1919, Odontosema anastrephae (Borgmeier, 1935 and Trybliographa infuscata Gallardo, Díaz & Uchôa-Fernandes, 2000 and, Pteromalidae - Spalangia gemina Boucek, 1963 and S. endius Walker, 1839. In all cases only one parasitoid emerged per puparium. D. areolatus was the most abundant and frequent parasitoid of fruit fly species, as was L. anastrephae in Neosilba spp. larvae. This is the first record of A. nordlanderi in the midwestern Brazilian region.

  7. Incidência de podridão-branca em frutos de macieira com e sem ferimentos Incidence of white rot in apple fruits with and without wounds

    OpenAIRE

    Janaína Pereira dos Santos; Adriana Regina Corrent; Onofre Berton; Lígia Loss Schwarz; Frederico Denardi

    2008-01-01

    Este estudo teve como objetivo avaliar a incidência da podridão-branca (Botryosphaeria dothidea) em frutos de dois genótipos de macieira submetidos à inoculação artificial, na ausência e na presença de ferimentos provocados pela mosca-das-frutas (Anastrepha fraterculus) e por estilete. O experimento foi conduzido no laboratório de Entomologia da Epagri/Estação Experimental de Caçador, na safra 2005/2006. No estudo, foram utilizados frutos da cv. Catarina (grupo 'Fuji') e da seleção M-13/00 (g...

  8. Hongos patógenos asociados a “moscas de la fruta” (Diptera: Tephritidae) en el sector austral de Las Yungas del noroeste argentino

    OpenAIRE

    Albornoz Medina, Patricia

    2014-01-01

    La presencia en Argentina de Anastrepha fraterculus (Diptera: Tephritidae) (especie nativa) y Ceratitis capitata (especie exótica) limitan la exportación de frutas y hortalizas al estado fresco, ya que estas plagas son de importancia cuarentenaria. A nivel mundial existe una tendencia a disminuir el empleo de plaguicidas de sintesis contra “moscas de la fruta”, debido fundamentalmente a los efectos nocivos de estos sobre el ambiente y la salud humana, sumado a la necesidad de la conservación ...

  9. Review of existing species of fruit flies in Ecuador

    International Nuclear Information System (INIS)

    This study was carried out since 1990 to 1997. The goal was to figure out different species of fruit fly that inhabit in Ecuador. For the identification we put special emphasis in the female genitalia. We recommend to do more research into this subject, because of the few studies done in our country and the importance of fruit cultivation. We mention 32 genus in the family Tephritidae in Ecuador, including the introduced genus Ceratitis. Into Toxotrypaninae are pointing out the presence of one specie of the Toxotrypana genus and 31 species of the Anastrepha genus, detailing brilly the 27 species most common. General notions about taxonomic bases are mentioned in order to identify species of the Anastrepha Schiner, pointing out certain fenotipic characteristics that prove variability among the ecuadorian's population, mainly A. fraterculus, A. distincta, A. obliqua, A. striata, and others. (The author)

  10. 韦-伯综合征相关印记基因在人类卵母细胞及植入前胚胎的正常表达%Expression of imprinted genes related to Beckwith-Wiedemann syndrome in human oocytes and preimplantation embryos

    Institute of Scientific and Technical Information of China (English)

    沈文洁; 邢福祺; 孔令红; 陈士岭; 李红

    2005-01-01

    Objective To investigate the expression of imprinted genes related to Beckwith-Wiedemann syndrome(BWS)in human oocytes and preimplantation embryos for understanding the relationship between assisted reproductive technology (ART) and BWS. Methods Using nested reverse transcription-PCR to analyze the expression of P57KIP2,LIT1,TSSC3 in human oocytes and preimplantation embryos. Results Transcripts of P57KIP2 were detected in human oocytes and at all stages of preimplantation embryos. LIT1 was expressed only in stages of 8-cell and blastocyst. Transcripts of TSSC3 could not be detected in human oocytes and preimplantation embryos. Conclusion Transcripts of P57KIP2 and LIT1, imprinted genes related to BWS, were detected in human preimplantation development;ART might affect the epigenetics of imprinted genes in early embryogenesis.%目的检测韦-伯综合征(Beckwith-Wiedemann syndrome,BWS)相关印记基因在人类卵母细胞和植入前胚胎的正常表达,探讨辅助生殖技术(assisted reproductive technology,ART)和BWS的关系.方法应用嵌套式逆转录-聚合酶链反应技术检测印记基因 P57KIP2、LIT1、TSSC3在人类卵母细胞及植入前胚胎的正常表达.结果卵母细胞和各期植入前胚胎、囊胚泡中均存在P57KIP2表达. LIT1自8细胞胚胎开始表达,持续至囊胚泡期. TSSC3于卵母细胞及各期植入前胚胎中均未表达.结论 BWS相关印迹基因 LIT1、P57KIP2表达于植入前胚胎,ART技术的体外干预可能影响其印迹基因的正常表达.

  11. Moscas-das-frutas em pomares de pessegueiro e maracujazeiro, no Município de Iraceminha, Santa Catarina, Brasil Fruit flies in peach and passion fruit orchards in Iraceminha, Santa Catarina, Brazil

    Directory of Open Access Journals (Sweden)

    Sheila Alberti

    2009-08-01

    Full Text Available Este estudo teve o objetivo de caracterizar a comunidade de moscas-das-frutas de ocorrência em pomares de pessegueiro e maracujazeiro, no Município de Iraceminha, Santa Catarina (SC, por meio da análise faunística. Os adultos de moscas-das-frutas foram capturados semanalmente, em armadilhas McPhail, contendo glicose invertida a 10%, no período de abril de 2006 a março de 2007. Na caracterização, foram calculados os índices de abundância, constância, dominância, frequência e diversidade. Foram coletados 697 adultos de moscas-das-frutas. Anastrepha grandis e Anastrepha fraterculus foram as espécies mais abundantes, frequentes, constantes e dominantes nos pomares estudados, predominando sobre as outras espécies de moscas-das-frutas. Ceratitis capitata foi caracterizada como dispersa e pouco frequente. O maior índice de diversidade encontrado foi de 1,99 no pomar de maracujazeiro.This research had the objective to characterize the community of fruit flies in peach and passion fruit orchards in Iraceminha, Santa Catarina, Brazil, through faunistic analyses. The adults fruit flies were weekly captured in McPhail traps with 10% inverted glucose, from April 2006 to March 2007. In the characterization, the indices for abundance, constancy, dominance, frequency and diversity were calculated. A total of 697 adults fruit flies were collected. Anastrepha grandis and Anastrepha fraterculus species were the most abundant, frequent, constant and dominant in orchards studied, predominating upon other fruit flies species. Ceratitis capitata was dispersed and not very frequent. The biggest index of diversity of 1.99 was in passion fruit orchard.

  12. Sterilization of fruit flies (Diptera: Tephritidae) with X-rays for sterile insect technique programs

    International Nuclear Information System (INIS)

    Recent fear of acts of terrorism provoked an increase of delays and denials in the shipment of radioisotopes. This truly represented a menace to sterile insect production projects around the world. In order to validate the use of a new kind of low-energy Xray irradiator, a series of radiobiological studies on Ceratitis capitata (tsl-VIENNA 8 strain) (Wied., 1824) (Diptera: Tephritidae) and an Argentinean strain of Anastrepha fraterculus (Wied., 1830) (Diptera: Tephritidae) were carried out, also comparing biological effectiveness between X-rays and traditional γ radiation from 60Co. Pupae 48- 24 h before adult emergence of C. capitata males and both sexes of A. fraterculus were irradiated with doses ranging from 15 to 120 Gy and 10 to 70 Gy respectively. Doses that induce 50, 90 and 99% of sterility were estimated and the hypothesis of Parallelism for the Probit equations was tested. Doses of 82.7 Gy of X-rays and 128.2 Gy of γ rays (thus, a RBE∼1.5) induced 99% sterility on medfly males. The fertility of A. fraterculus fertile females crossed with 41 Gy of X-rays and 62.7 Gy of γ rays decreased in 99% comparing with the control group (RBE∼1.5). 99% sterility of A. fraterculus irradiated females was achieved with 60-80 Gy (RBE∼0.7). The standard quality control parameters of fecundity, adult emergence, fliers and survival were not significantly affected by the two types of radiation (RBE∼1) either for medfly or A. fraterculus (p>0.01), being averages in conformity with the values required by FAO/IAEA/USDA. Only fecundity of irradiated A. fraterculus females was severely reduced with increasing doses and no egg was laid at 70 Gy of both radiations. There were no significant differences between X-rays and γ rays regarding mating indices (RSI for medfly, RII, ISI, MRPI and FRPI for A. fraterculus) (p>0.05), what indicated more random matings for fertile and sterile insects. The results demonstrated that no significant difference in biological effectiveness

  13. Sterilization of fruit flies (Diptera: Tephritidae) with X-rays for sterile insect technique programs; Esterilizacao de moscas-das-frutas (Diptera: Tephritidae) com raios-X para programas de tecnica do inseto esteril

    Energy Technology Data Exchange (ETDEWEB)

    Mastrangelo, Thiago de Araujo

    2009-07-01

    Recent fear of acts of terrorism provoked an increase of delays and denials in the shipment of radioisotopes. This truly represented a menace to sterile insect production projects around the world. In order to validate the use of a new kind of low-energy Xray irradiator, a series of radiobiological studies on Ceratitis capitata (tsl-VIENNA 8 strain) (Wied., 1824) (Diptera: Tephritidae) and an Argentinean strain of Anastrepha fraterculus (Wied., 1830) (Diptera: Tephritidae) were carried out, also comparing biological effectiveness between X-rays and traditional {gamma} radiation from {sup 60}Co. Pupae 48- 24 h before adult emergence of C. capitata males and both sexes of A. fraterculus were irradiated with doses ranging from 15 to 120 Gy and 10 to 70 Gy respectively. Doses that induce 50, 90 and 99% of sterility were estimated and the hypothesis of Parallelism for the Probit equations was tested. Doses of 82.7 Gy of X-rays and 128.2 Gy of {gamma} rays (thus, a RBE{approx}1.5) induced 99% sterility on medfly males. The fertility of A. fraterculus fertile females crossed with 41 Gy of X-rays and 62.7 Gy of {gamma} rays decreased in 99% comparing with the control group (RBE{approx}1.5). 99% sterility of A. fraterculus irradiated females was achieved with 60-80 Gy (RBE{approx}0.7). The standard quality control parameters of fecundity, adult emergence, fliers and survival were not significantly affected by the two types of radiation (RBE{approx}1) either for medfly or A. fraterculus (p>0.01), being averages in conformity with the values required by FAO/IAEA/USDA. Only fecundity of irradiated A. fraterculus females was severely reduced with increasing doses and no egg was laid at 70 Gy of both radiations. There were no significant differences between X-rays and {gamma} rays regarding mating indices (RSI for medfly, RII, ISI, MRPI and FRPI for A. fraterculus) (p>0.05), what indicated more random matings for fertile and sterile insects. The results demonstrated that no

  14. Ocorrência precoce da mosca das frutas em ameixas Incidence of the southamerican fruit fly on plums

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    Luiz Antonio Salles

    1999-06-01

    Full Text Available O objetivo deste estudo foi verificar qual o estágio fenológico mais precoce da fruta de ameixeira em que ocorreria o ataque de mosca das frutas Anastrepha fraterculus. Os estudos foram conduzidos em plantas adultas de ameixeira, expondo-se fêmeas grávidas da mosca das frutas, confinadas em gaiolas com frutos protegidos do ataque natural. Cinco cultivares de ameixeira foram estudados (Amarelinha, Pluma 7, Reubennel, Santa Rosa e Wade. Essa praga ataca frutos de qualquer um dos cultivares logo nos primeiros estádios do desenvolvimento, quando os mesmos têm somente cerca de 2 a 3cm de diâmetro.The incidence of the southamerican fruit fly, Anastrepha fraterculus, on plum cultivars is reported. The objective of this study was to know the earliest fruit phase that fly attack could occur. Fertilized females were confined with fruits in plum trees in an orchard. Five plums cultivars were studied: Amarelinha; Pluma 7; Reubennel; Santa Rosa and Wade. This pest attack fruits during first stages of their development, mainly they have only from 2 to 3 centimeters of diameter.

  15. Eficácia de atrativos alimentares na captura de moscas-das-frutas em pomar de citros Attractiveness of food baits to the fruit flies in citrus orchard

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    Adalton Raga

    2006-01-01

    Full Text Available As moscas-das-frutas (Diptera: Tephritoidea são importantes pragas de frutas cítricas no Estado de São Paulo, principalmente Anastrepha fraterculus (Wied. e Ceratitis capitata (Wied.. O objetivo deste estudo foi medir a eficiência dos atrativos alimentares para monitoramento de moscas-das-frutas, em pomar de citros. O delineamento experimental adotado foi de blocos ao acaso com cinco tratamentos e cinco repetições. O ensaio foi instalado em 30/9/2003 e desenvolvidopor nove semanas. Os atrativos testados foram: proteínas hidrolisadas comerciais Bio Anastrepha, Isca Mosca e Aumax®, todas diluídas em água a 5%; melaço a 7% isoladamente e melaço a 7% em mistura com suco de laranja a 10%. Foram utilizados semanalmente, 400mL da solução atrativa por frasco plástico McPhail instalado na copa de laranjeiras da variedade 'Pêra Rio'. As soluções eram renovadas semanalmente, ocasião em que os adultos eram coletados e çevados ao laboratório para contagem, sexagem e identificação. Foram capturados 1.821 adultos de Tephritoidea, sendo 892 de Anastrepha spp., 731 de C. capitata e 198 de Neosilba spp. Para essas espécies, as proteínas Bio Anastrepha e Isca Mosca foram altamente eficientes e semelhantes entre si, capturando 44,5% e 41,3% dos adultos de Tephritidae respectivamente. Não houve diferença entre as espécies de Tephritidae analisadas por sexo capturadas em Bio Anastrepha, Aumax® e melaço. Aumax®, melaço isoladamente e melaço + suco de laranja atraíram apenas 4,6%, 1,3% e 1,2% do total de adultos de Tephritidae, respectivamente. Melaço isoladamente e melaço com suco de laranja foram mais eficazes na atratividade de Zaprionus indianus (Gupta (Diptera: Drosophilidae.Fruit flies (Diptera: Tephritoidea are key pests in citrus production in the State of São Paulo, Brazil, mainly Anastrepha fraterculus (Wied. and Ceratitis capitata (Wied.. The objective of this study was to evaluate food baits to monitor fruit fly

  16. Population fluctuation of fruit flies (Diptera, Tephritidae in peach and passion fruit orchards in Iraceminha, Santa Catarina

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    Sheila Alberti

    2012-06-01

    Full Text Available The objective of this study was learn more about the population fluctuation of fruit flies in peach and passion fruit orchards in the municipality of Iraceminha, Santa Catarina. In order to carry out the survey, McPhail traps were set up with 10% inverted glucose from April 2006 to March 2007. Captured flies were identified at the Laboratório de Entomologia at UNOCHAPECÓ. The collected females belonged to twelve species and four genera. The adults of Anastrepha fraterculus were trapped during all seasons, with a population peak in October 2006 in the peach orchards. The population levels of Anastrepha grandis remained higher during the first five months in the passion fruit orchard. There were low infestation rates by flies of the genera Ceratitis, Blepharoneura and Tomoplagia when compared to flies of the genus Anastrepha. The results showed that the presence of flies in the orchards was associated with the availability of host fruit and not with climatic conditions.

  17. Understanding long-term fruit fly (Diptera: Tephritidae) population dynamics: implications for areawide management.

    Science.gov (United States)

    Aluja, Martín; Ordano, Mariano; Guillén, Larissa; Rull, Juan

    2012-06-01

    Fruit flies (Diptera: Tephritidae) are devastating agricultural pests worldwide but studies on their long-term population dynamics are sparse. Our aim was to determine the mechanisms driving long-term population dynamics as a prerequisite for ecologically based areawide pest management. The population density of three pestiferous Anastrepha species [Anastrepha ludens (Loew), Anastrepha obliqua (Macquart), and Anastrepha serpentina (Wiedemann)] was determined in grapefruit (Citrus x paradisi Macfad.), mango (Mangifera indica L.), and sapodilla [Manilkara zapota (L.) P. Royen] orchards in central Veracruz, México, on a weekly basis over an 11-yr period. Fly populations exhibited relatively stable dynamics over time. Population dynamics were mainly driven by a direct density-dependent effect and a seasonal feedback process. We discovered direct and delayed influences that were correlated with both local (rainfall and air temperature) and global climatic variation (El Niño Southern Oscillation [ENSO] and North Atlantic Oscillation [NAO]), and detected differences among species and location of orchards with respect to the magnitude and nature (linear or nonlinear) of the observed effects, suggesting that highly mobile pest outbreaks become uncertain in response to significant climatic events at both global and local levels. That both NAO and ENSO affected Anastrepha population dynamics, coupled with the high mobility of Anastrepha adults and the discovery that when measured as rate of population change, local population fluctuations exhibited stable dynamics over time, suggests potential management scenarios for the species studied lie beyond the local scale and should be approached from an areawide perspective. Localized efforts, from individual growers will probably prove ineffective, and nonsustainable. PMID:22812118

  18. Sterility and meeting competitiveness of medfly, Ceratitis Capitata (Wiedemann)

    International Nuclear Information System (INIS)

    The basic methodology in the determination of sterilising dosage in male med flies and mating competitiveness with the normal males was carried out in the laboratory. Application of the Sterile Insect Technique (S.I.T.) by three irradiation dosages on Seib-6096 pupae results in sterility when dosage increased. A lower mating competitiveness was observed with the increase in sterility value. This value was determined from the corrected egg hatch percent. The resulting data showed that irradiation dosage of γ 10.0 Krad gave a good advantage to suppress the population in the next generation. The method suggested a good application in the control and eradication of fruit flies. (author)

  19. Incidence of fruit flies on coffee and citrus and quarantine treatment of citrus fruits by gamma radiation; Incidencia de moscas-das-frutas em cafe e citros e tratamento quarentenario de frutos citricos com radiacao gama

    Energy Technology Data Exchange (ETDEWEB)

    Raga, Adalton

    1996-12-31

    The objective of this study was to evaluate the fruit fly infestation on coffee and citrus, and also to determine gamma radiation doses for immature stages of Ceratitis capitata and Anastrepha fraterculus, in order to satisfy quarantine regulations. Coffee arabica varieties Icatu Vermelho, Catuai Amarelo, Mundo Novo and Sarchimor showed the highest infestation indices (pupa/berry): 0.53; 0,41; 0.33 and 0.36. respectively Icatu Vermelho and Catuai Vermelho showed the highest values of pupa/berry weight (0.49 and 0.39, respectively), and Robusta (Coffea canephora) presented the lowest index (0.01). The following fruit flies were found in coffee berries: C. capitata (76.6%) Anastrepha spp. (7.4%) and Lonchaeidae (17.0%). In area near coffee plantation, fruit fly infestation indices in sweet oranges were of 4.77 larvae/kg and 0.55 larva/fruit. The infestation indices for sweet orange, collected from five regions of the State of Sao Paulo ranged from 0.73 to 7.60 pupa/kg and 0.12 to 1.27 pupa/fruit. The same species of fruit flies were found in oranges. In the case of C. capitata eggs with 24-48 hours old, 20 Gy prevented completely adult emergence (artificial diet and orange). No emergence of adult occurred when C. capitata larvae of third instar were irradiated at 20 Gy in their rearing medium. But at 25 Gy, the number of adults was reduced by 54% and 97% from larval infestation in oranges and grapefruit, respectively. A dose of 30 Gy was required to prevent medfly emergence from third instar larvae in grapefruit. A dose of 15 Gy was required for third instar, to prevent adult emergence of A. fraterculus. No adult emerged from C third instar, to prevent adult emergence of A. fraterculus. No adult emerged from C capitata pre-pupa irradiated at 30 Gy. One medfly adult emerged from pupa (3-4 days after pupating) irradiated at 120 Gy. At the same dose, sixteen A. fraterculus adults emergency from irradiated pupa with 5-6 days old. (author) 85 refs., 2 figs., 13 tabs.

  20. Incidence of fruit flies on coffee and citrus and quarantine treatment of citrus fruits by gamma radiation

    International Nuclear Information System (INIS)

    The objective of this study was to evaluate the fruit fly infestation on coffee and citrus, and also to determine gamma radiation doses for immature stages of Ceratitis capitata and Anastrepha fraterculus, in order to satisfy quarantine regulations. Coffee arabica varieties Icatu Vermelho, Catuai Amarelo, Mundo Novo and Sarchimor showed the highest infestation indices (pupa/berry): 0.53; 0,41; 0.33 and 0.36. respectively Icatu Vermelho and Catuai Vermelho showed the highest values of pupa/berry weight (0.49 and 0.39, respectively), and Robusta (Coffea canephora) presented the lowest index (0.01). The following fruit flies were found in coffee berries: C. capitata (76.6%) Anastrepha spp. (7.4%) and Lonchaeidae (17.0%). In area near coffee plantation, fruit fly infestation indices in sweet oranges were of 4.77 larvae/kg and 0.55 larva/fruit. The infestation indices for sweet orange, collected from five regions of the State of Sao Paulo ranged from 0.73 to 7.60 pupa/kg and 0.12 to 1.27 pupa/fruit. The same species of fruit flies were found in oranges. In the case of C. capitata eggs with 24-48 hours old, 20 Gy prevented completely adult emergence (artificial diet and orange). No emergence of adult occurred when C. capitata larvae of third instar were irradiated at 20 Gy in their rearing medium. But at 25 Gy, the number of adults was reduced by 54% and 97% from larval infestation in oranges and grapefruit, respectively. A dose of 30 Gy was required to prevent medfly emergence from third instar larvae in grapefruit. A dose of 15 Gy was required for third instar, to prevent adult emergence of A. fraterculus. No adult emerged from C third instar, to prevent adult emergence of A. fraterculus. No adult emerged from C capitata pre-pupa irradiated at 30 Gy. One medfly adult emerged from pupa (3-4 days after pupating) irradiated at 120 Gy. At the same dose, sixteen A. fraterculus adults emergency from irradiated pupa with 5-6 days old. (author)

  1. Moscas frugívoras (Diptera, Tephritoidea coletadas em Aquidauana, MS Frugivorous flies (Diptera, Tephritoidea collected in Aquidauana, MS

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    Sérgio Roberto Rodrigues

    2006-03-01

    Full Text Available No Brasil as moscas frugívoras são pragas importantes de frutas e hortaliças. O conhecimento da flutuação populacional dessas espécies em cada bioma é um importante requisito para a adoção de estratégia de controle de pragas nos agroecossistemas. O objetivo desse trabalho foi avaliar a diversidade de espécies de moscas-das-frutas infestantes de frutas silvestres e cultivadas em Aquidauana, MS. Vinte e uma espécies de frutas foram amostradas de fevereiro de 2003 a janeiro de 2004. As espécies de Tephritidae encontradas foram: Anastrepha striata Schiner, 1868, Anastrepha obliqua (Macquart, 1835 e Ceratitis capitata (Wiedemann, 1824. Os frugívoros Lonchaeidae e Muscidae encontrados foram: Neosilba sp. e Atherigona orientalis (Schiner, 1868, respectivamente. Um total de 2.568 moscas foram coletadas, das quais 2.394 representadas pela mosca-do-Mediterrâneo C. capitata. A associação entre moscas frugívoras e espécies de frutas é discutida.In Brazil, frugivorous flies represent important pests of fruits and vegetables. Information on populational fluctuation of these species in each biome is an important requirement for the adoption of a strategy of pest control in the agroecosystems. The objective of this paper is to assess the diversity of fruit fly species occurring in wild and cultived fruits in Aquidauana, MS. Twenty-nine fruit species were sampled from February 2003 to January 2004. The Tephritidae species recovered were: Anastrepha striata Schiner, 1868, Anastrepha obliqua (Macquart, 1835 and Ceratitis capitata (Wiedemann, 1824. The frugivorous Lonchaeidae and Muscidae recovered were: Neosilba sp. and Atherigona orientalis (Schiner, 1868, respectively. A total of 2.568 flies were obtained, from which 2.394 flies were the Mediterranean fruit fly, C. capitata. The association between frugivorous flies and the fruit species is discussed.

  2. Determination of gamma radiation dose as a post-harvest treatment in mangos infested with the South American fruit fly

    International Nuclear Information System (INIS)

    Efforts are being made to determine a gamma radiation dose for mortality of third-instar larvae of Anastrepha fraterculus which infest mangos of the Haden variety of 400 g weight. Four radiation treatments were tested: 0.4 kGy, 0.6 kGy, 0.8 kGy and 1.0 kGy. Using as a criterium for mortality the interruption of the biological cycle between larva and pupa, the following results were achieved: 49.61%, 63.33%, 74.86% and 90.72%. The percentages obtained have been corrected using the Abbot formula. When the criterium was based on no adult emergence, 100% mortality was achieved for the four treatments. (author)

  3. Fruit flies (Diptera: Tephritidae associated to native fruit of Spondias spp. (Anacardiaceae and Ximenia americana L. (Olacaceae and their parasitoids in the State of Piaui, Brazil

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    Almerinda Amélia Rodrigues Araújo

    2014-09-01

    Full Text Available This work aims to identify the species of fruit flies and their parasitoids associated to native fruit of Spondias spp. (caja S. mombin L., umbu-caja Spondias sp., umbu S. tuberosa Arr. Câm. and wild plum Ximenia americana L., in the State of Piaui, Brazil. Samples (63 of fruits were collected from November 2009 to July 2010, totalizing 4,495 fruits and 46,906 kg. It was possible to obtain 10,617 puparia, from which 4,497 tephritids and 1,118 braconid parasitoids emerged. Regarding Spondias spp., the highest occurrence was Anastrepha obliqua (Macquart, with 100% for umbu and umbu-caja. Caja presented an average of 99.52% of A. obliqua, 0.46% of Anastrepha fraterculus (Wied. and 0.97% of Ceratitis capitata (Wied.. Wild plum percentages were 97.83% for A. alveata Stone and 2.17% for A. fraterculus. Infestation rates were 429.2, 178.4, 158.9 and 43.3 puparia/kg in umbu-caja, caja, wild plum and umbu, respectively. Pupal viability was 77.8%, 69.3%, 52.5% and 41.1% to umbu, wild plum, umbu-caja and caja, respectively. By analyzing the sample parasitoids, the percentage was 21.39% for the Doryctobracon areolatus (Szépligeti species and 78.61% for Opius bellus Gahan. For the first time, it was recorded in Brazil X. americana as a host to A. alveata, as well as D. aleolatus and O. bellus as parasitoids of A. obliqua and A. alveata in Piaui.

  4. Biological Control of Tephritid Fruit Flies in Argentina: Historical Review, Current Status, and Future Trends for Developing a Parasitoid Mass-Release Program

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    Sergio M. Ovruski

    2012-09-01

    Full Text Available In Argentina there are two tephritid fruit fly species of major economic and quarantine importance: the exotic Ceratitis capitata that originated from Southeast Africa and the native Anastrepha fraterculus. In recent years, the use of fruit fly parasitoids as biocontrol agents has received renewed attention. This increasing interest has recently led to the establishment of a program for the mass rearing of five million Diachasmimorpha longicaudata parasitoids per week in the BioPlanta San Juan facility, San Juan, Argentina. The first augmentative releases of D. longicaudata in Argentina are currently occurring on commercial fig crops in rural areas of San Juan as part of an integrated fruit fly management program on an area-wide basis. In this context, research is ongoing to assess the suitability of indigenous parasitoid species for successful mass rearing on larvae of either C. capitata or A. fraterculus. The purpose of this article is to provide a historical overview of the biological control of the fruit fly in Argentina, report on the strategies currently used in Argentina, present information on native parasitoids as potential biocontrol agents, and discuss the establishment of a long-term fruit fly biological control program, including augmentative and conservation modalities, in Argentina’s various fruit growing regions.

  5. Hole diameters in pet bottles used for fruit fly capture

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    Maurico Paulo Batistella Pasini

    2015-05-01

    Full Text Available Two experiments were conducted during the period from 31 January to 6 March 2012 in Santa Maria, Rio Grande do Sul State, Brazil to determine the efficiency of different hole diameters in PET trap bottles on pests in guava and persimmon orchards. In a randomised block design in a factorial scheme, we assessed the average number adults of Anastrepha fraterculus, Ceratitis capitata (Diptera: Tephitidae and Zaprionus indianus (Diptera: Drosophilidae infruits thatemerged in two situations (in the plant and on the soil; we also assessed the number of captured adults in trap bottlesunder two conditions, different hole diameters and different days after placement of the attractive solution. Smaller diameter sizescaptured more A. fraterculus, C. capitata and Z. indianusadults. The 1.0 cm diameter was the most efficient hole size in reducing the adult emergence of Tephritidae to Z. indianus, whereas the smallest diameter hole sizes, 0.6 and 0.8 cm, showed the highest efficiencies in controlling adult emergence in persimmon fruit and guava fruit.

  6. Responses of Anastrepha striata to various attractants in Costa Rica

    International Nuclear Information System (INIS)

    Full text: The purpose was to determine the responses of A. striata to seven attractants: A) NuLure, B) Ammonium Acetate (AA) at 150 μg NH4/hour + Putrescine (PT), C) AA at 300 μg NH4/hour + PT, D) AA at 600 μg NH4/hour +PT, E) Ammonium Bicarbonate (AB) at 300 μg NH4/hour + PT, F) AA at 300 μg NH4/hour + PT + Trimethylamine and G) Torula yeast. Each evaluation lasted eight weeks, with a change of the attractants at four weeks and biweekly gatherings of the captured insects. The data are expressed as the 'Flies per Trap per Day Index' (FTD Index). In Grecia Canton (year 2001) in a coffee and orange plantation 4549 tephritids were captured and only 49 (1,07%) were A. striata. In Esparza Canton in a mango orchard (2001) 2239 tephritids were captured and of those 50 (4.03%) were this species, and in the (2003) evaluation 792 flies were captured and of them 15 (1,89%) were this species. In Pocora District (2002 and 2004) in a guava orchard 1,491 and 9,251 flies were collected and of those, 1477 (99,06%) and 8071 (87,20%) were of this species, respectively. And in Corralar District (2002 and 2004) in a mixed coffee and orange plantation 3853 and 447 tephritids were collected and of those 114 (2,95%) and 5 (1,11%) belong to A. striata. Therefore these data show that in coffee and citrus plantations and in the mango orchard, there was a low population density and in guava orchard a high density. The evaluation carried out in Pocora (2004) and in Corralar (2002 and 2004) the largest FTD Index was obtained with NuLure (0.92, 0.0215 and 0.02 respectively). In Esparza (2002) and Pocora (2002) the largest FTD Index was obtained with Torula (0.03 and 0.12, respectively). In Grecia (2001) and in Esparza (2003) the best attractant was the mixture of Ammonium Acetate with Putrescine. In Esparza (2002) and Pocora (2002) the second best attractant was NuLure. In Grecia (2001), Pocora (2004) and Corralar (2002) it was Torula. Basic and necessary information was obtained to evaluate the presence and density of the population of A. striata under diverse climatic conditions, phenologies and different population densities and an important base to study its use in bait stations. (author)

  7. Sex Pheromone Investigation of Anastrepha serpentina (Diptera: Tephritidae)

    Science.gov (United States)

    Attraction of virgin females to odor of calling males was demonstrated. This sex pheromone mediated attraction occurred during the latter half of a 13-h photophase but not during the first half of the day. Two major components of emissions of calling males, 2,5-dimethylpyrazine (DMP) and 2,5-dihyd...

  8. Conditional lethality strains for the biological control of Anastrepha species

    Science.gov (United States)

    Pro-apoptotic cell death genes are promising candidates for biologically-based autocidal control of pest insects as demonstrated by tetracycline (tet)-suppressible systems for conditional embryonic lethality in Drosophila melanogaster (Dm) and the medfly, Ceratitis capitata (Cc). However, for medfly...

  9. Color preference of Anastrepha obliqua (Diptera, Tephritidae Preferência de cor por Anastrepha obliqua (Macquart (Diptera, Tephritidae

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    Guillermo López-Guillén

    2009-01-01

    Full Text Available The color preference of A. obliqua was evaluated in two-choice tests. The results showed that both sexes were attracted to wavelengths ranging from 340 nm to 670 nm, although the broad major peak of attraction occurred between 380 and 570 nm.A preferência de cor por A. obliqua foi avaliada em testes de dupla escolha. Os resultados mostraram que ambos os sexos foram atraídos aos comprimentos de onda que variam de 340 nm a de 670 nm, embora o principal pico da atração de A. obliqua tenha ocorrido entre 380 e 570 nm.

  10. Biodiversidade de moscas-das-frutas (Diptera, Tephritoidea em matas nativas e pomares domésticos de dois municípios do Estado do Tocantins, Brasil Biodiversity of fruit flies (Diptera, Tephritoidea in native forests and orchards in two counties of the State of Tocantins, Brazil

    Directory of Open Access Journals (Sweden)

    Darcy A. do Bomfim

    2007-01-01

    Full Text Available Este trabalho apresenta análise faunística comparativa das espécies de moscas-das-frutas capturadas em armadilhas McPhail (junho a dezembro de 2002 com proteína hidrolisada de milho a 5%. Foram comparadas a riqueza de espécies e a estrutura populacional entre ambientes de mata e pomar dos municípios de Palmas e Porto Nacional, TO. Foram capturados 1.748 indivíduos de espécies de três gêneros de Tephritidae: Tomoplagia Coquillett, 1910, Anastrepha Schiner, 1868 e Ceratitis MacLeay, 1829. De Lonchaeidae foram capturadas espécies de três gêneros: Lonchaea Fallén, 1820, Neosilba McAlpine, 1962 e Dasiops Rondani, 1856. Ceratitis capitata (Wiedemann, 1824. Dezenove espécies de Anastrepha foram coletadas, sendo a maioria dos indivíduos (69,1% de A. obliqua (Macquart, 1835. Não houve diferença significativa (P This paper presents comparative and faunistic analysis of the species of fruit flies captured in McPhail traps (from June to December 2002 baited with 5% corn protein hydrolyzed. Species richness and the patterns of population are compared between forest and orchard environments and between the counties of Palmas and Porto Nacional. A total of 1,748 individuals of Tephritidae belonging to species of three genera were collected: Tomoplagia Coquillett, 1910, Anastrepha Schiner, 1868 and Ceratitis MacLeay, 1829. Species of three genera of Lonchaeidae were also captured: Lonchaea Fallén, 1820, Neosilba McAlpine, 1962 and Dasiops Rondani, 1856. Ceratitis capitata (Wiedemann, 1824 and nineteen species of the genus Anastrepha were collected. Most of the collected individuals (69.1% belonged to A. obliqua (Macquart, 1935. The average numbers of tephritid individuals in Palmas and native forests were significantly lower than Porto Nacional and orchards, respectively. According to the Shannon diversity index (H' and test t used for comparing the fruit flies fauna among the environments, it was verified that only one comparison showed

  11. Fruit flies (Diptera, Tephritidae) and their associations with native host plants in a remnant area of the highly endangered Atlantic Rain Forest in the State of Espírito Santo, Brazil.

    Science.gov (United States)

    Uramoto, K; Martins, D S; Zucchi, R A

    2008-10-01

    The results presented in this paper refer to a host survey, lasting approximately three and a half years (February 2003-July 2006), undertaken in the Vale do Rio Doce Natural Reserve, a remnant area of the highly endangered Atlantic Rain Forest located in Linhares County, State of Espírito Santo, Brazil. A total of 330 fruit samples were collected from native plants, representing 248 species and 51 plant families. Myrtaceae was the most diverse family with 54 sampled species. Twenty-eight plant species, from ten families, are hosts of ten Anastrepha species and of Ceratitis capitata (Wiedemann). Among 33 associations between host plants and fruit flies, 20 constitute new records, including the records of host plants for A. fumipennis Lima and A. nascimentoi Zucchi. The findings were discussed in the light of their implications for rain forest conservation efforts and the study of evolutionary relationships between fruit flies and their hosts. PMID:18439337

  12. Irradiation of mangoes as a quarantine treatment

    International Nuclear Information System (INIS)

    This research project was conducted following the guidelines of research protocols for post-harvest treatments developed by the United States Department of Agriculture. Laboratory bioassays included the irradiation of mangoes (Mangifera indica L.) infested with third instar larvae of Anastrepha serpentina (Wiedemann), A. Ludens (Loew), A. obliqua (Macquart) and Ceratitis capitata (Wiedemann) at doses of 10-250 Gy. Irradiation doses were applied using a 60Co Atomic Energy of Canada Limited Model JS-7400 irradiator. The design was chosen to obtain a maximum/minimum ratio equal to, or less than, 1025, C. capitata was the species most tolerant to irradiation. A dose of 60 Gy, applied to third instar fruit fly larvae in the infested fruits, sterilized this species and prevented the emergence of adults of the other three species. A dose of 250 Gy was required to prevent emergence of C. capitata. In fertility tests using emerged adults of A. ludens and A. obliqua, a dose of 30 Gy gave 45 and 27% fertility, respectively. The adults of A. serpentina that emerged died before reaching sexual maturity. Confirmatory tests, at the probit 9 security level, were done at 100 Gy for the three species of Anastrepha and at 150 Gy for C. capitata. The quality of fruits irradiated up to 1000 Gy was evaluated by chemical, physiological and sensorial tests. Determination of vitamin C indicated that there was no loss in the nutritive value of the fruit. It also was observed that fruit metabolism, was not accelerated, since no significant increase in respiration or transpiration was registered and consumers accepted both the treated and untreated fruits in the same way. (author). 11 refs, 2 figs, 9 tabs

  13. Diversidade de moscas-das-frutas, suas plantas hospedeiras e seus parasitóides nas regiões Norte e Noroeste do Estado do Rio de Janeiro, Brasil Fruit fly diversity, their host plants and their parasitoids in the northern and northwestern regions of Rio de Janeiro State, Brazil

    Directory of Open Access Journals (Sweden)

    Michela Rocha Leal

    2009-06-01

    Full Text Available Em razão da exploração crescente da fruticultura nas regiões Norte e Noroeste do Estado do Rio de Janeiro e da importância econômica e quarentenária das moscas-das-frutas para essa atividade agrícola no mundo, este estudo foi conduzido em cinco municípios dessas regiões: Cambuci, Campos dos Goytacazes, Itaocara, São Francisco do Itabapoana e São João da Barra, com objetivo de registrar as espécies de moscas-das-frutas, suas plantas hospedeiras e seus parasitóides. Os espécimes foram coletados por meio de armadilhas McPhail com solução aquosa de proteína hidrolisada a 5% e em amostras de frutos. Nas armadilhas, 4% do total de moscas-das-frutas capturadas foram Ceratitis capitata e 96% eram do gênero Anastrepha, num total de 15 espécies. Das moscas capturadas nas armadilhas, apenas seis espécies infestaram frutos entre as 12 espécies de fruteiras amostradas. Fruteiras das famílias Anacardiaceae, Malpighiaceae, Myrtaceae, Oxalidaceae, Passifloraceae e Sapotaceae foram plantas hospedeiras de moscas-das-frutas. Apenas três espécies de Anastrepha (A. fraterculus, A. sororcula e A. zenildae infestaram goiabas da variedade comercial Paluma. Os parasitóides de larvas de moscas-das-frutas encontrados foram Doryctobracon areolatus e Aganaspis pelleranoi, parasitando-as em frutos de goiabeira e de outras fruteiras nessas regiões.Due to the increase in fruit crops acreage in the northern and northwestern regions of Rio de Janeiro State and to the economic and quarantine importance of the fruit flies to this agricultural activity in the world, this study was carried out in five municipalities of these regions: Cambuci, Campos dos Goytacazes, Itaocara, São Francisco do Itabapoana, and São João da Barra, aiming to study the fruit fly species, their host plants and their parasitoids. The specimens were collected using McPhail traps with aqueous solution of hydrolyzed protein to 5% and in fruit samples. In the traps, 4% of the total

  14. Induced Cannibalism in Experimental Populations of the Forensic Indicator Chrysomya putoria Wiedemann (Diptera: Calliphoridae).

    Science.gov (United States)

    Botteon, V W; Fernandes, F S; Godoy, W A C

    2016-04-01

    We analyzed the behavior of third-instars of Chrysomya putoria as potential cannibals in experimental populations. Cannibalism rates were evaluated in three settings observed for 3, 6, 9, and 24 h, placing injured and uninjured larvae of C. putoria together. Our data heavily support that C. putoria larvae behave as cannibals when induced by a wound in another larva, and also after starving for 24 h. The probability of cannibalism increased as a function of time, both in no-choice and in choice experiments evidencing that time is a determining factor for cannibalism induction in C. putoria. However, the treatment combining injured with uninjured larvae showed the highest probability of cannibalism. These results suggest that C. putoria larvae may cannibalize under scarcity of food over long time or the presence of injured larvae. This study is useful to understand the behavior of C. putoria feeding on ephemeral substrates such as carrion or corpses and brings relevant and significant contribution to population ecology of blowflies and also forensic entomology. PMID:26698866

  15. Prenatal molecular testing for Beckwith-Wiedemann and Silver-Russell syndromes

    DEFF Research Database (Denmark)

    Eggermann, Thomas; Brioude, Frédéric; Russo, Silvia;

    2016-01-01

    the cases. In addition, 10% of the SRS patients carry a maternal uniparental disomy of chromosome 7 11p15.5. There is an increasing demand for prenatal testing of these disorders owing to family history, indicative prenatal ultrasound findings or aberrations involving chromosomes 7 and 11. The complex...... molecular findings underlying these disorders are a challenge not only for laboratories offering these tests but also for geneticists counseling affected families. The scope of counseling must consider the range of detectable disturbances and their origin, the lack of precise quantitative knowledge...

  16. Rescue of placental phenotype in a mechanistic model of Beckwith-Wiedemann syndrome

    Directory of Open Access Journals (Sweden)

    Higgins Michael J

    2010-05-01

    Full Text Available Abstract Background Several imprinted genes have been implicated in the process of placentation. The distal region of mouse chromosome 7 (Chr 7 contains at least ten imprinted genes, several of which are expressed from the maternal homologue in the placenta. The corresponding paternal alleles of these genes are silenced in cis by an incompletely understood mechanism involving the formation of a repressive nuclear compartment mediated by the long non-coding RNA Kcnq1ot1 initiated from imprinting centre 2 (IC2. However, it is unknown whether some maternally expressed genes are silenced on the paternal homologue via a Kcnq1ot1-independent mechanism. We have previously reported that maternal inheritance of a large truncation of Chr7 encompassing the entire IC2-regulated domain (DelTel7 allele leads to embryonic lethality at mid-gestation accompanied by severe placental abnormalities. Kcnq1ot1 expression can be abolished on the paternal chromosome by deleting IC2 (IC2KO allele. When the IC2KO mutation is paternally inherited, epigenetic silencing is lost in the region and the DelTel7 lethality is rescued in compound heterozygotes, leading to viable DelTel7/IC2KO mice. Results Considering the important functions of several IC2-regulated genes in placentation, we set out to determine whether these DelTel7/IC2KO rescued conceptuses develop normal placentae. We report no abnormalities with respect to the architecture and vasculature of the DelTel7/IC2KO rescued placentae. Imprinted expression of several of the IC2-regulated genes critical to placentation is also faithfully recapitulated in DelTel7/IC2KO placentae. Conclusion Taken together, our results demonstrate that all the distal chromosome 7 imprinted genes implicated in placental function are silenced by IC2 and Kcnq1ot1 on the paternal allele. Furthermore, our results demonstrate that the methylated maternal IC2 is not required for the regulation of nearby genes. The results show the potential for fully rescuing LQ trans placental abnormalities that are caused by imprinting defects.

  17. Autocidal fight against the Mediterranean fruit fly: Ceratitis capitata Wiedemann (Diptera, Tephritidae)

    International Nuclear Information System (INIS)

    Our study which aims at the control of the TIS consisted in following the stages of breeding of the fly and carrying out lachers sterile insects. We noticed during the massive breeding, a monitoring of the physicochemical parameters (pH, Porosite) and climatic conditions of the mediums and the rooms of breeding (temperature, Humidity) allows a significant productivity in quantity. However, a good productivity inevitably does not imply a good quality, this was illustrated by the tests of quality control of the most productive transfers (weight and number of pupes/2ml, aptitude for thr flight, recombination). The very start of the lachers what increases the effectiveness of the technique of the sterile insect (TIS). A good control of the breeding makes it possible to have a massive production to be able to make homogenous lachers.

  18. Mälestused minu elust / Ferdinand Johann Wiedemann ; tõlk. Kalev Jaago

    Index Scriptorium Estoniae

    Wiedemann, Ferdinand Johann

    2000-01-01

    Järg Sep/21;23;26;28;30 Oct/3;5;7;10;12;14 Ferdinand Johann Wiedemanni (1805-1887) mälestuste saksakeelne algkäsikiri aastast 1878 asub Eesti Ajaloomuuseumis Otto Greifenhageni fondis nr. 65, säilik 6. Kommentaar: Kalev Jaago

  19. Ultrastructure of immature stages of the black dump fly: Ophyra aenescens (Wiedemann, 1830) (Diptera: Muscidae: Azeliinae).

    Science.gov (United States)

    Cortinhas, Lucas Barbosa; Mendonça, Paloma Martins; Barbosa, Rodrigo Rocha; Queiroz, Margareth Maria de Carvalho

    2016-06-01

    Ophyra aenescens (black dump fly) originally belonged to the New World, however, now it is spread worldwide. This fly is a mechanical vector of some pathogenic microorganisms and eggs of the human botfly (Dermatobia hominis). The adults are associated with decaying matter and the immature stages colonize animal and human corpses. It is considered an important muscid species for forensic entomology. The aim of this study was to describe the morphology of the eggs, the three larval instars and the puparia of O. aenescens using scanning electron microscopy (SEM). The spiracular opening of the first instar has an interruption in the middle of its length. Comparing to the other instar, the ventral tubercles are only developed in the first instar. The anterior spiracles have a variation in the numbers of spiracular ramification. The puparia morphology is similar to the third instar larvae, however the cephalic region is retracted and on the third thoracic segment, a respiratory structure is present. In conclusion, the SEM technique used and the results obtained are helpful to describe and differentiate the immature stages of O. aenescens and consequently support forensic and medical entomology. PMID:26943996

  20. INSECTS ASSOCIED WITH BACUPARI FRUIT, Salacia crassifolia (Mart. PEYR, IN THE SAVANNAHS OF CENTRAL BRAZIL ENTOMOFAUNA ASSOCIADA AOS FRUTOS DO BACUPARI, Salacia folia (MART. PEYR, NOS CERRADOS DO BRASIL CENTRAL

    Directory of Open Access Journals (Sweden)

    Ronaldo Veloso Naves

    2007-09-01

    Full Text Available

    The bacupari (Salacia crassifolia is a native fruit plant of the Brazilian cerrado areas. Although a high fruit fly infestation limits its utilization, it is eaten by animals and humans. Fruits present orange colored pulp, with slightly acid flavour and can be apreciated in natura or juices. The objective of this study was to assay bacupari plant features in Goiás State cerrado and to verify insects associated to bacupari, to determine infestation index and to verify this plant as a natural reservoir of fruit flies for adjacent orchards. Samples were collected during the frutification stage from September to December from 1995 to 1999 on 11 counties in Goiás State. The insects found more often were from Tephritidae (54.22% as Anastrepha sp. (new species, A. zenildae, A. obliqua, A. fraterculus, A. sororcula, A. serpentina. Insects from other families were also identified: Lonchaeidae (Neosilba sp., Muscidae (Atherigona orientalis, Oititidae and their parasitoids: Braconidae (Doryctobracon areolatus, Doryctobracon sp.-new species, Pteromalidae (Dicerataspis flavipes and Figitidae (Eucoilinae - Lopheucoila anastrephae, Aganaspis nordlanderi, A. pelleranoi. Anstrepha sp. and Lonchaeidae, Anastrepha sp. and A. zenildae were found in the same fruit, proving overposition of fruit fly species in the fruit.

    KEY-WORDS: Insecta; native fruit plant; insects population.

    O bacupari, Salacia

  1. Y-Linked markers for improved population control of the tephritid fruit fly pest, Anastrepha suspensa

    Science.gov (United States)

    Insect pest control programs incorporating the sterile insect technique (SIT) rely on the mass production and release of sterilized insects to reduce the wild-type population through infertile matings. Most effective programs release only males to avoid any crop damage caused by female fruit flies o...

  2. Response of Anastrepha suspensa to liquid protein baits and synthetic lure formulations

    International Nuclear Information System (INIS)

    Traps baited with AAPt captured more A. suspensa than traps baited with ABPt even when the ammonia release rates were similar. Reducing dosage of ammonia by 50% of the commercially available AA lure slightly increased female capture, but reducing dosage to 25% tended to decrease female capture. The 5% CPH/3% borax bait captured the same number of flies as TYB, and was more effective than 10% CPH/3% borax. Further decreasing the amount of borax added to CPH may improve its effectiveness. As has been observed in field tests, fresh TYB captures more A. suspensa than fresh Nulure/borax but this difference decreases as the bait solutions age. EAG analysis indicates that volatiles from fresh Nulure/ borax elicit a higher antennal response than TYB, but this difference decreases as the TYB solution ages. Chemical analysis will be needed to determine the nature of reduced capture by fresh Nulure/borax and to identify additional attractive chemicals emitted by these protein baits. (author)

  3. Solar sterilization of abscised fruit: a cultural practice to reduce infestations of Anastrepha obliqua around orchards

    Science.gov (United States)

    Abscised mangoes, Mangifera indica L., of several varieties were stored under varying conditions of insolation, including no sun (stored in a laboratory), shade (stored under the shade of a mango tree), full sun (stored in direct view of the sun), and covered in a black plastic bag and stored in dir...

  4. Response of Anastrepha suspensa to liquid protein baits and synthetic lure formulations

    Energy Technology Data Exchange (ETDEWEB)

    Epsky, Nancy D.; Kendra, Paul E.; Heath, Robert R., E-mail: Nancy.Epsky@ars.usda.go, E-mail: Paul.Kendra@ars.usda.go, E-mail: Bob.Heath@ars.usda.go [U.S. Department of Agriculture (USDA/ARS/SHRS), Miami, FL (United States). Agricultural Research Service. Subtropical Horticulture Research Station

    2006-07-01

    Traps baited with AAPt captured more A. suspensa than traps baited with ABPt even when the ammonia release rates were similar. Reducing dosage of ammonia by 50% of the commercially available AA lure slightly increased female capture, but reducing dosage to 25% tended to decrease female capture. The 5% CPH/3% borax bait captured the same number of flies as TYB, and was more effective than 10% CPH/3% borax. Further decreasing the amount of borax added to CPH may improve its effectiveness. As has been observed in field tests, fresh TYB captures more A. suspensa than fresh Nulure/borax but this difference decreases as the bait solutions age. EAG analysis indicates that volatiles from fresh Nulure/ borax elicit a higher antennal response than TYB, but this difference decreases as the TYB solution ages. Chemical analysis will be needed to determine the nature of reduced capture by fresh Nulure/borax and to identify additional attractive chemicals emitted by these protein baits. (author)

  5. Contribución al estudio de las moscas anastrephas en colombia.

    OpenAIRE

    González Mendoza Rafael

    2012-01-01

    1. Colombia tiene amplias posibilidades de desarrollar una industria frutícola floreciente dadas las excepcionales condiciones de ubicación geográfica, diversidad de climas y de suelos. 2. La deficiente producción frutera actual es el resultado de una reunión de factores adversos, entre los que resalta el desconocimiento de los problemas científicos que afectan a dicha industria. En este aspecto, los problemas fitosanitarios, abandonados y faltos de investigación, ocupan lugar pre...

  6. Study of the combined radial post-feeding dispersion of the blowflies Chrysomya megacephala (Fabricius and C. albiceps (Wiedemann (Diptera, Calliphoridae Estudo da dispersão radial combinada de Chrysomya megacephala (Fabricius e C. albiceps (Wiedemann (Diptera, Calliphoridae

    Directory of Open Access Journals (Sweden)

    Leonardo Gomes

    2005-09-01

    Full Text Available Blowflies use discrete and ephemeral substrates to feed their larvae. After they run out of food, the larvae begin to disperse in order to find adequate places for pupation or additional food sources, a process named post-feeding larval dispersion. Some important aspects of this process were studied in a circular arena allowing the combined radial post-feeding dispersion from the center of the arena of C. albiceps and C. megacephala larvae. To determine the location of each pupa, the arena was divided in 72 identical sections starting from the center. The distance from the center, the depth and weight of each pupa were evaluated. Statistical tests were done to verify the relation between weight, depth and distance for pupation. From the total an average of 976 larvae released (488 for each species were collected considering both experiments 456 C. megacephala pupae and 488 of C. albiceps. This demonstrates that C. albiceps probably preyed on 32 C. megacephala larvae during post-feeding dispersion. The study of this dispersion process can be used to estimate the postmortem interval (PMI of human cadavers in legal medicine.As moscas- varejeiras utilizam-se de substratos discretos e efêmeros para alimentar suas larvas. Após deixarem o substrato alimentar, as larvas começam a dispersar em busca de locais adequados para pupação e fontes adicionais de alimento, um processo denominado dispersão larval pós-alimentar. Alguns aspectos importantes desse processo foram estudados em uma arena permitindo a dispersão radial combinada de larvas de C. megacephala e C. albiceps. Para determinar a localização de cada pupa, a arena foi dividida em 72 setores iguais começando do centro. A distância a partir do centro, a profundidade e o peso de cada pupa foram determinados. Testes estatísticos foram feitos para verificar a relação entre peso, profundidade e distância para pupação. De um total em média de 976 larvas soltas (488 de cada espécie foram coletadas considerando ambos os experimentos 456 larvas de C. megacephala e 488 larvas de C. albiceps. Isso demonstrou que as larvas de C. albiceps provavelmente predaram 32 larvas de C. megacephala. O estudo desse processo de dispersão pode auxiliar na estimativa do intervalo pós- morte (IPM em estudos de medicina legal.

  7. Aphaereta sp. (Hymenoptera: Braconidae: Alysiinae) as a natural enemy to Peckia chrysostoma (Wiedemann) (Diptera: Sarcophagidae), in Brazil Aphaereta sp. (Hymenoptera, Braconidae, Alysiinae) como inimigo natural de Peckia chrysostoma (Wiedemann) (Diptera: Sarcophagidae), no Brasil

    OpenAIRE

    C.H. Marchiori; L. A. Pereira; O. M. S. Filho

    2003-01-01

    This paper reports the first occurence of the parasite Aphaereta sp. (Hymenoptera: Braconidae: Alysiinae) which wascollected from Peckia chrysostoma pupae (Diptera: Sarcophagidae) by means of traps containing some fish baits in a wood area close to the Agronomy college (Faculdade of Agronomia) in Itumbiara, Goiás, in the period from March to September, 2001. A total of 362 gregarious specimens of parasitoids from 26 pupae of P. chrysostoma. Aphaereta sp. was collected, with several individual...

  8. Avaliação da qualidade de frutos de café atacados por Ceratitis capitata (Wiedemann, 1824 (Diptera: Tephritidae Evaluation of the quality of coffee fruit attacked by Ceratitis capitata (Wiedemann, 1824 (Diptera: Tephritidae

    Directory of Open Access Journals (Sweden)

    F.J. Cividanes

    1993-09-01

    Full Text Available Foram usadas plantas de Coffea arabica L., variedade Catuaí Vermelho, localizadas no Campus da Escola Superior de Agricultura "Luiz de Queiroz" - USP, Piracicaba,SP, para avaliação dos danos que Ceratitis capitata (Wied., 1824 pode causar aos frutos do cafeeiro. Os resultados mostraram que o ataque de C. capitula não causou queda prematura dos frutos, mas aumentou a queda de cerejas e foram encontradas, fortes evidências, com base na atividade da enzima polifenol oxidase e lixiviação de potássio, que cerejas atacadas podem produzir bebida de café de qualidade inferior.The present work was carried out using trees of Coffea arabica L. variety Red Catuaí grown at Escola Superior de Agricultura "Luiz de Queiroz" - Campus of the University of São Paulo, Piracicaba,SP. The objective was to estimate damages that Ceratitis capitata (Wied., 1824 can cause to coffee fruits. The results showed that C.capitata did not cause premature fruit fall, but it increased berry fall. The activity of the enzyme polyphenol oxidase and potassium lixiviatiou give strong evidences that atacked coffee beans produce coffee beverage of inferior quality.

  9. Sobrevivência de pupas de Lucilia eximia (Wiedemann (Diptera, Calliphoridae após submersão em laboratório Survival of Lucilia eximia (Wiedemann (Diptera, Calliphoridae pupae after submersion in laboratory

    Directory of Open Access Journals (Sweden)

    Alex Sandro Barros de Souza

    2009-01-01

    Full Text Available Entre Maio e Junho de 2008 foi observado a sobrevivência das pupas de Lucilia eximia (Diptera, Calliphoridae após submersão em laboratório. Para este experimento foram utilizadas 480 pupas de mesma idade, sendo estas divididas em oito grupos: o controle não foi submerso e os demais grupos foram submersos de um a sete dias. O aumento do período de submersão diminui a sobrevivência, com um dia de submersão a sobrevivência é de 80%, com dois dias 40%, é de 30% a partir do terceiro dia, no quarto dia cai para 23,34% e no quinto dia fica em 10%. Após este período a mortalidade sobe para 100%. Este padrão pode ser explicado pela curva "U-shaped" que ocorre no consumo de O2 durante o período pupal, onde o consumo é maior no início e no final do período pupal. O tempo de submersão também afeta o tempo de desenvolvimento, aumentando o período pupal. Estes dados têm o potencial para serem utilizados em investigações envolvendo Entomologia Forense, para a estimativa do tempo de submersão de um cadáver.Between May and June of 2008, the survival of the pupae of Lucilia eximia (Diptera, Calliphoridae was observed after submersion in laboratory. For this experiment 480 pupae of same age were used, these were divided in eight groups: the group control was not submerged and the other groups were submerged from one to seven days. The increase of the submersion period reduces the survival, with one day of submersion the survival is of 80%, with two days 40%, of 30% with three days, in the fourth day it falls to 23,34% and in the fifth day it is 10%. After this period the mortality rises to 100%. This pattern can be explained by the curve "U-shaped" that happens in the consumption of O2 during the pupal period, where the consumption is larger at the beginning and at the end of the pupal period. The time of submersion also affects the development time, increasing the pupal period. These data are potentially useful in estimating duration of submergence of a corpse in forensic entomology investigations.

  10. Tephritids in fruit plantations in Costa Rica

    International Nuclear Information System (INIS)

    Full text: The diversity of tephritids captured in fruit orchards in Costa Rica during four years (2001- 2004) with MultilureRM Traps is presented. These were baited with different attractants (Torula, Nu-Lure and several synthetic mixtures) in a project to determine their capacity of attraction, in mixed plantations of coffee and citrus in the Grecia Canton (year 2001) and in the Corralar District (2002 and 2004); in a mango plantation in the Esparza Canton (2001 and 2003), in a guava orchard in Pocora District (2002 and 2004) and in a citrus plantation in the San Carlos Canton, (2003). In the Grecia Canton 4,545 fruit flies were captured: 3837 (84.42%) medflies, 634 (13,94%) Anastrepha ludens, 49 (1,07%) A. striata, 29 (0.06%) A. fraterculus. In Esparza Canton (2001) 2239 tephritids were captured: 1107 (49,44%) Medflies, 875 (39,07%) A. obliqua, 156 (6,96%) A. striata, 73 (3,26%) A. serpentina and 1 (0.04%) A. ludens. In Esparza (2003) 792 tephritids were captured: 518 (65.40%) medflies, 216 (27,27%) A. obliqua, 15 (1.89%) A. striata, 18 (2.27%) A. serpentina and 24 (3.03%) Hexachaeta obscura. In Corralar District (2002) 3873 tephritids were captured: 2323 (59.99%) medflies, 1416 (36.56%) A. ludens, 20 (0.51%) A. obliqua and 114 (2.94%) A. striata. In the same place (Corralar - 2004) 533 tephritids were captured: 270 (50.65%) medflies, 118 (22.13%) A. ludens, 19 (3.56%) A. obliqua, 5 (0.93%) A. striata, 105 (19.69%) of the genus Molynocoelya spp., 14 (2.62%) Paroxyna spp. and 2 (0.37%) Tetreuareta spp. In Pocora District (2002) 1542 tephritids were captured: 1526 (98.96%) A. striata, 3 (0.19%) A. obliqua, 6 (0.38%) A. fraterculus, 1 (0.064%) A. zuelianiae, 2 (0.12%) Pesudocrotaenia spp. and 1 (0.064%) Pyrgotoides spp. In the same place (2004) 9250 tephritidis was captured: 8071 (87.25%) A. striata, 935(10.10%) A. obliqua, 235 (2.54%) medflies, 6 (0.06%) A. serpentina, 2 (0.02%) A. cyclayae and 1 (0.01%) Hexachaeta obscura. In a citrus plantation in the San Carlos

  11. Entomology Unit annual report 2003

    International Nuclear Information System (INIS)

    As described in the 2002 Annual Report an improved medfly genetic sexing strain (GSS) was developed, VIENNA 8. This strain shows improved production characteristics and will have a major impact on the production efficiency in SIT rearing facilities. During 2003 this strain was transferred to four rearing facilities in Guatemala, Peru, South Africa and Tunisia based on acceptable QC data developed for the strain in the Unit. For the first time the strain was transferred to the different facilities under an agreement that prevents further distribution to third parties without consent of the Unit. In the past, strains originating from the Unit have been freely exchanged within the medfly SIT community, sometimes with not always the best results. During 2003 there has been a substantial increase in the resources devoted to activities in fruit flies other than medfly e.g. Bactrocera oleae and Anastrepha fraterculus. Rearing of the olive fly, B. oleae has traditionally not been straightforward due to the very specific, and expensive, larval diet that is required by this monophagous pest. With the disappearance of an essential larval diet component from the commercial market an urgent search is underway for an alternative. In 2004, experiments will be carried out to identify improved larval diets. For A. fraterculus, a large-scale evaluation of mating compatibility between different geographical races has been carried out by a consultant. Progress has been made in the containerised rearing of tsetse fly colonies. The container required considerable work before the temperature and humidity controls were suitable for tsetse rearing and a closed colony of Glossina fuscipes is now being reared. Discussions are now underway to install a version of TPU 3.2 (an automated tsetse feeding and production unit) in the container. A protocol for the handling, irradiation and eventual release of large numbers of sterile male tsetse has been formulated and it will involve at least two

  12. Some aspects of the behavior at different ages of Ceratitis capitata (Wiedemann, 1824) (Diptera-Tephritidae) irradiated with gamma rays

    International Nuclear Information System (INIS)

    The present work was carried out in the laboratory of the Entomology Section of the Nuclear Energy for Agriculture Center (CENA) in Piracicaba, Sao Paulo state, Brazil, to determine the effects different gamma radiation doses on the reproductive potential of males and the flight behavior of Ceratitis capitata (Wied.). For all the treatments with gamma radiation a Cobalt-60 source type Gamma beam-650 was used, with activity of approximately 13,410 x 10B Bq. (4,967 Ci.), and the dose rate of 2.000 Gy per hour. The doses used were 80 Gy, 100 Gy and 120 Gy. The three doses employed affected more the longevity of males than the females and the number of spermatozoid found lower in the irradiated insects compared with the control, with no significant differences between doses. The insects irradiated with 80 Gy showed activity similar to the control population until four days after emergence: afterwards they were more active than the unirradiated. The gamma irradiation diminished the take-off ability of the insects. (author). 59 refs., 9 figs., 9 tabs

  13. Ionization with accelerated high energy electrons as quarantine treatment against Ceratitis capitata (Wiedemann) (Diptera: Tephritidae) in citrus fruits

    International Nuclear Information System (INIS)

    Ceratitis capitata is a quarantine pest. Spanish citrus exports to countries such as the USA or Japan are subjected to a mandatory quarantine treatment consisting of exposure of fruits to a low temperatures. Some citrus (''Fino'' lemon, ''Fortune'' mandarin) are very sensitive to this kind of treatment and can not be treated this way. Therefore, alternative treatments are necessary. In this study, high energy electrons were investigated as an alternative quarantine treatment against C. capitata in citrus. Survival of the different instars (egg to old pupae) of C. capitata reared in an artificial medium was assessed when exposed to different doses between 0 and 1 kGy. Both pupariation and adult emergence were almost prevented at 0.25 kGy, and no viable adults were obtained at 0.50 kGy. When artificially infested fruits (in both ''Fino'' lemon and ''Fortune'' mandarin) were exposed to 1 kGy, 100% mortality was obtained. Finally, quality (texture, color index, maturity index, juice yield, ethanol and acetaldehyde contents, physiological alterations and organoleptic characteristics) of irradiated (1 kGy) and non irradiated fruit were compared. High energy electron irradiation resulted in unacceptable damage to ''Fortune'' mandarin, but quality of ''Fino'' lemon resulted unaltered even when evaluated one month after irradiation. Therefore high energy electrons could be a useful alternative to cold quarantine treatment for ''Fino'' lemons. (author)

  14. Effect of Gamma Irradiation on Mediterranean Fruit Fly, Ceratitis Capitata (Wiedemann) and Improvement of The Sterile-Insect Technique

    International Nuclear Information System (INIS)

    The population suppression success of Mediterranean fruit fly, Ceratitis capitata (Wied.) using sterile insect technique (SIT) depends mainly upon: the release of male only, ability of sterilized males to compete with wild males in mating with wild females and discrimination of released male flies from the wild population. The effect of gamma irradiation doses on the male sterility was evaluated, to determine the level of induced sterility for achieving the balance between sterility and mating competitiveness. For optimal sterilizing dose, 8 different doses of gamma irradiation were tested. The results revealed that the doses 80, 90 and 100 Gy were the effective doses for SIT. In a field cage experiment, the mating ability, mating competitiveness and sexual compatibility were determined for the three effective sterilizing doses. The indices of sexual isolation (ISI) and the relative sterile index (RSI) indicated that mating efficiency of the dose 80 Gy was better than the doses 90 and 100 Gy. Obtained results also revealed that the competitiveness of 80 Gy irradiated males was higher than either 90 or 100 Gy irradiated males. Mutant strains, i.e. white eye white pupae strain (WeWp strain), male linked translocated strain (T strain), temperature sensitive lethal strain (tsl strain) and sergeant 2 strain (Sr2 strain) were reared and maintained for the construction of genetic sexing strain Vienna 8- Sr2 strain (GSS V8-Sr2). The results of biological characters of GSSs revealed that, the 3 sexing strains (T, Sr2 and V8 strains) which have Y- auto some translocation were less productive than the bisexual strain (BSS). Also, the development of tsl and GSS V 8-Sr2 strains was delayed compared with the BSS strain. The stability of GSS V8-Sr2 strain in the filter rearing was higher than in the mass rearing throughout 12 successive generations. The use of recombinant DNA to develop the two genetically modified strains GMSs (V8-2) and (V8-4) using insect transformation offers the prospect of new marking techniques. DsRed marker gene could potentially be used to discriminate released medfly from the wild population. The average no. of eggs/fem./day, egg hatch (%), pupal production (%) and the number of pupae per ml. were not affected and the fitness of GMS trains (V8-2 and V8-4) which carry the DsRed was similar to the GSS V8-Sr2 which does not carry this marker. Also, the DsRed marker gene does not have a direct impact on the quality control parameters (sex ratio, adult emergence and flight ability) of the GSS V8- Sr2.

  15. Aphaereta sp. (Hymenoptera: Braconidae: Alysiinae) as a natural enemy to Peckia chrysostoma (Wiedemann) (Diptera: Sarcophagidae), in Brazil

    OpenAIRE

    Marchiori C.H.; Pereira L.A.; Filho O.M.S.

    2003-01-01

    This paper reports the first occurence of the parasite Aphaereta sp. (Hymenoptera: Braconidae: Alysiinae) which wascollected from Peckia chrysostoma pupae (Diptera: Sarcophagidae) by means of traps containing some fish baits in a wood area close to the Agronomy college (Faculdade of Agronomia) in Itumbiara, Goiás, in the period from March to September, 2001. A total of 362 gregarious specimens of parasitoids from 26 pupae of P. chrysostoma. Aphaereta sp. was collected, with several individual...

  16. Opportunities to improve competitiveness in male sexual strain has genetic sex determination Ceratitis capitata Wiedemann (Diptera: Tephritidae)

    International Nuclear Information System (INIS)

    The success of TIS program depends essentially on the capacity of the sterile males to compete with fertile males to couple with wild females. This program becomes more and more efficient if one good mastery its various factors, mainly the performances of males of the origin of ceratite in genetic sexing within the production unit of sterile flies of the National Center of the Sciences and Nuclear Technologies. Researches turned to the improvement of the competitiveness of the sterile males by the addition of bacteria in the nourishing circles of breeding. By basing itself on the symbiotic relations between the present bacteria in the bowel of the ceratite, we adopted, in this present work, a method of breeding which could improve the quality of the males of genetic sexing GSS. This method consists in introducing certain beneficial bacteria in the ceratite (Enterobacteriaceae and Pseudomonas aerogenes) into the middle of breeding according to various combinations. The effect of these bacteria was analyzed by making various tests of quality control (weight, emergence, capacity in the flight, the longevity) and of reproduction (competitiveness, lasted mating, latent period). It turns out that the addition of Enterobacteriaceae in the middle of breeding outstandingly improved the percentage of emergence of the males of the GSS. Besides, these bacteria contributed to the improvement of the competitiveness of these males with regard to those of the other circles. Besides, the addition of Pseudomonas aerogenes in the middle of breeding gave the best latent period to the males GSS. We also noticed that the association of Enterobacteriaceae with Pseudomonas aerogenes has a positive effect on the capacity in the flight of the males of the GSS and their duration of mating.

  17. First record of Chrysomya albiceps Wiedemann, 1819 (Diptera: Calliphoridae) maggots from a sambar deer (Rusa unicolor) in Kerala, South India

    OpenAIRE

    Radhakrishnan, Sreejith; Gopalan, Ajith Kumar Karapparambu; Ravindran, Reghu; Rajagopal, Kavitha; Sooryadas, Surendran; Promod, Kanjirakuzhiyil

    2012-01-01

    Fully grown third stage larvae (LIII) of Chrysomya albiceps were recovered from aberrant sites viz. trachea and rumen during necropsy of a free-range sambar deer that had been observed to bear an inflamed tongue infested with maggots and subsequently died due to starvation. Five dead maggots of C. bezziana were also recovered from rumen. The aberrant locations of the recovery of the maggots indicated that they might have reached these sites accidentally. This is the first report of LIII of C....

  18. Diagnóstico da área cultivada com uva fina de mesa (Vitis vinifera L sob cobertura plástica e do manejo de pragas Area grown with table grape (Vitis vinifera L under protected cultivation and pest management practices used by growers in Caxias do Sul, RS

    Directory of Open Access Journals (Sweden)

    Rodrigo Formolo

    2011-03-01

    Full Text Available Neste trabalho, foi realizado o censo das áreas cultivadas com uvas finas de mesa sob cultivo protegido e a identificação das principais espécies de pragas e estratégias de controle empregadas pelos produtores, no município de Caxias do Sul-RS. Na safra de 2007/2008, foram identificados os produtores envolvidos com a atividade no município e através de entrevista presencial e semiestruturada ao estabelecimento produtivo, registrou-se a área cultivada e variedades. Para produtores com cultivo de áreas superiores a 2.000m² da cultivar Itália, com dois anos ou mais de produção, foi aplicado outro questionário na safra de 2008/2009 com o objetivo de levantar as informações referentes: a espécies de insetos e ácaros-praga que danificam as uvas finas de mesa na propriedade, segundo o viticultor; b conhecer a realidade do manejo de insetos e ácaros-praga na cultura; c verificar os parâmetros que o produtor utiliza para a aplicação de inseticidas; d conhecer os produtos aplicados, e e identificar o tipo de assistência técnica recebida pelo viticultor. Foram identificados 43 produtores de uvas finas de mesa sob cultivo protegido com área total cultivada de 30,36 ha, sendo 70,31% desta área da cultivar Itália. As pragas mais importantes mencionadas pelos produtores foram tripes - Frankliniella rodeos Moulton e a mosca-das-frutas-sul-americana Anastrepha fraterculus (Wied. O manejo realizado para controle destas pragas é através da aplicação de inseticidas com os ingredientes ativos acefato e fentiona, respectivamente, com base em calendário. Os principais problemas enfrentados para implementar estratégias de manejo de pragas no cultivo são a falta de assistência técnica, a ausência de metodologias confiáveis para o monitoramento e o reduzido número de inseticidas autorizados para a cultura.The area grown with table grapes (Vitis vinifera under protected cultivation, pests associated with the crop and control

  19. Controle de pragas e doenças, maturação e qualidade de maçãs 'imperial gala' submetidas ao ensacamento Control of insect pests and diseases, maturity and quality of 'imperial gala' apples submitted to bagging

    Directory of Open Access Journals (Sweden)

    Rosângela Teixeira

    2011-06-01

    Full Text Available O objetivo deste trabalho foi avaliar a eficiência de diferentes embalagens no ensacamento de maçãs para o controle de pragas e doenças, e sua influência na maturação e qualidade dos frutos, em pomar sob sistema orgânico. O experimento foi conduzido em pomar com plantas de dez anos de idade da cultivar Imperial Gala, sobre porta-enxerto 'Marubakaido', com filtro EM-9, localizado no município de São Joaquim-SC, nas safras 2007/2008 e 2008/2009. Os frutos foram ensacados, após o raleio, com embalagens plásticas transparentes microperfuradas ou de tecido não texturizado (TNT. Frutos não ensacados constituíram o tratamento-controle. Na colheita, os frutos foram avaliados quanto aos danos provocados por mosca-das-frutas (Anastrepha fraterculus, mariposa-oriental (Grapholita molesta, lagarta-enroladeira (Bonagota salubricola e pulgão-lanígero (Eriosoma lanigerum, incidência das doenças sarna-da-macieira (Venturia inaequalis e podridão-amarga (Colletotrichum gloeosporioides, e atributos físico-químicos de maturação e qualidade e teor de cálcio (Ca nos frutos. O ensacamento, independentemente do tipo de material utilizado, reduziu os danos de insetos-praga, porém não foi eficiente no controle de doenças nos frutos. O ensacamento não comprometeu o desenvolvimento de coloração vermelha na casca e o teor de Ca nos frutos. De modo geral, o ensacamento antecipou o processo de maturação, caracterizado pela redução na firmeza de polpa e na textura da casca e da polpa, e pelo aumento no índice de iodoamido.This work was carried out to evaluate the efficiency of different fruit bagging materials to insect pests and diseases control, and its influence on maturity and quality of the fruits in an organic apple orchard. The experiment was conducted in an orchard with ten years old 'Imperial Gala' apple trees grafted on 'Marubakaido' rootstock (with a filter of EM-9, in São Joaquim, State of Santa Catarina, in 2007/08 and 2008

  20. Controle de pragas e doenças, maturação e qualidade de maçãs 'imperial gala' submetidas ao ensacamento

    Directory of Open Access Journals (Sweden)

    Rosângela Teixeira

    2011-06-01

    Full Text Available O objetivo deste trabalho foi avaliar a eficiência de diferentes embalagens no ensacamento de maçãs para o controle de pragas e doenças, e sua influência na maturação e qualidade dos frutos, em pomar sob sistema orgânico. O experimento foi conduzido em pomar com plantas de dez anos de idade da cultivar Imperial Gala, sobre porta-enxerto 'Marubakaido', com filtro EM-9, localizado no município de São Joaquim-SC, nas safras 2007/2008 e 2008/2009. Os frutos foram ensacados, após o raleio, com embalagens plásticas transparentes microperfuradas ou de tecido não texturizado (TNT. Frutos não ensacados constituíram o tratamento-controle. Na colheita, os frutos foram avaliados quanto aos danos provocados por mosca-das-frutas (Anastrepha fraterculus, mariposa-oriental (Grapholita molesta, lagarta-enroladeira (Bonagota salubricola e pulgão-lanígero (Eriosoma lanigerum, incidência das doenças sarna-da-macieira (Venturia inaequalis e podridão-amarga (Colletotrichum gloeosporioides, e atributos físico-químicos de maturação e qualidade e teor de cálcio (Ca nos frutos. O ensacamento, independentemente do tipo de material utilizado, reduziu os danos de insetos-praga, porém não foi eficiente no controle de doenças nos frutos. O ensacamento não comprometeu o desenvolvimento de coloração vermelha na casca e o teor de Ca nos frutos. De modo geral, o ensacamento antecipou o processo de maturação, caracterizado pela redução na firmeza de polpa e na textura da casca e da polpa, e pelo aumento no índice de iodoamido.

  1. Dietas artificiais para a criação de larvas e adultos da mosca-das-frutas sul-americana

    Directory of Open Access Journals (Sweden)

    Adrise Medeiros Nunes

    2013-10-01

    Full Text Available O objetivo deste trabalho foi adequar as dietas artificiais para o desenvolvimento dos estágios de larva e adulto da mosca-das-frutas sul-americana (Anastrepha fraterculus. Para o estágio larval, foram testadas as seguintes dietas: D1, original, com 10 g de ágar; D2, modificada, com 3,6 g de ágar; e, D3, modificada, com bagaço seco de cana-de-açúcar. Para os adultos, foram testadas quatro dietas: A, levedura de cerveja + mel (2:1; B, açúcar refinado + extrato de levedura + gérmen de trigo cru (3:1:1; C, extrato de soja + açúcar mascavo + gérmen de trigo cru (3:1:1; e D, levedura seca de cervejaria + mel (2:1. Avaliaram-se os parâmetros biológicos de duração do período ovo-pupa, duração e viabilidade do estágio de pupa, massa média de pupas, razão sexual e duração e viabilidade do período ovo-adulto. O desenvolvimento larval em D1 e D2 foi semelhante e indicou que a criação de larvas pode ser realizada com 1/3 da quantidade de ágar da utilizada em D1. A utilização do bagaço seco de cana-de-açúcar, na dieta artificial, afetou negativamente o desenvolvimento larval. As dietas artificiais com levedura de cerveja + mel e com açúcar refinado + extrato de levedura + gérmen de trigo cru são as mais adequadas para a criação de adultos.

  2. Eficiência de substâncias atrativas na captura de moscas-das-frutas (diptera: tephritidae em goiabeiras no município de Itapecuru-Mirim (MA

    Directory of Open Access Journals (Sweden)

    Lemos Raimunda Nonata Santos

    2002-01-01

    Full Text Available O experimento foi conduzido em pomar comercial de goiaba (Psidium guajava L. cultivar 'Pêra Vermelha', localizado no município de Itapecuru-Mirim (MA, na Comunidade Magnificat, visando a adotar um sistema de manejo integrado de moscas-das-frutas através do monitoramento com armadilhas do tipo frasco caça-moscas (modelo garrafa plástica e atraentes de alimentação. O delineamento estatístico adotado foi o de blocos inteiramente casualizados, com cinco tratamentos e quatro repetições, sendo: suco de laranja (50%, acerola (30%, goiaba (30%, maracujá (30% e solução de açúcar cristal a 10 %. Verificou-se que o suco de maracujá (30% e a solução de açúcar cristal (10% foram mais atrativos para os adultos de Anastrepha distincta Greene, A. sororcula Zucchi, A. striata Schiner, A. obliqua Macquart e A. serpentina Wiedemann.

  3. Guidance for packing, shipping, holding and release of sterile flies in area-wide fruit fly control programmes

    International Nuclear Information System (INIS)

    This guidance represents the recommendations, reached by consensus of an international group of experts, on the standard procedures for the packing, shipping, holding and release of mass reared and sterilized tephritid flies that are to be used in area-wide programmes that include the Sterile Insect Technique (SIT). The majority of the procedures were initially designed specifically for the Mediterranean fruit fly Ceratitis capitata (Wiedemann) (or Medfly), but they are applicable, with minor modifications, for other tephritid species such as those in the genera Anastrepha, Bactrocera and Dacus. The guidance is designed to be a working document that can be subject to periodic updates due to technological developments and research contributions. Future editions will endeavour to include more specific recommendations for other species of fruit flies as the relevant data become available. The procedures described in this guidance will help ensure that released sterile fruit flies will be of optimal quality and that the resulting field density of these flies will be as closely aligned to the individual programme needs. It is hoped that this guidance will help to quickly identify and correct problems in programme effectiveness, resulting from less than optimal emergence and release conditions

  4. A compound produced by fruigivorous Tephritidae (Diptera) larvae promotes oviposition behavior by the biological control agent Diachasmimorpha longicaudata (Hymenoptera: Braconidae).

    Science.gov (United States)

    Stuhl, Charles; Sivinski, John; Teal, Peter; Paranhos, Beatriz; Aluja, Martin

    2011-06-01

    Tephritid fruit fly parasitoids use fruit-derived chemical cues and the vibrations that result from larval movements to locate hosts sequestered inside fruit. However, compounds produced by the larvae themselves have not been previously described nor their significance to parasitoid foraging determined. We collected the volatiles from four species of tropical and subtropical Tephritidae: Anastrepha suspensa (Loew), Bactrocera dorsalis Hendel, Bactrocera cucurbitae Coquillett, and Ceratitis capitata (Wiedemann), representing two subfamilies (Dacinae and Trypetinae). Para-ethylacetophenone, an analog of a known tephritid parasitoid attractant, was a major constituent of all four, and was not associated with larvae of another acalypterate fly, Drosophila melanogaster Meigen, or with the calypterate Musca domestica L. It also was present in volatiles from whole, A. suspensa infested fruits of Eugenia uniflora (L.). Para-ethylacetophenone was not necessarily produced as a direct consequence of fruit consumption because it also was detected from larvae that developed in two artificial diets and in spent diets subsequent to larval development. Sensillae on both the antennae and ovipositor of the opiine braconid fruit fly parasitoid, Diachasmimorpha longicaudata (Ashmead) responded to the para-ethylacetophenone in larval volatiles and as a synthetic. Although a potential cue to foraging parasitoids, para-ethylacetophenone showed no long range (>1m) attractiveness to the adult female parasitoid, but did stimulate ovipositor-insertion and oviposition into both a natural (fruit) and an artificial (parafilm) substrate. Thus it may prove useful in colonizing and mass-rearing opine fruit fly parasitoids. PMID:22251652

  5. Characterization of the proteasome ß2 subunit gene and its mutant allele in the tephritid fruit fly pest, Anastrepha suspensa

    Science.gov (United States)

    Conditional lethal release (CLR) is a proposed variation of the sterile insect technique (SIT) for the biological control of pest insects that would result from the release of transgenic insects carrying dominant conditional lethal genes. After mating with pest insects in the field, lethal gene exp...

  6. Pheromone communication in Anastrepha obliqua (Diptera: Tephritidae): A comparison of the volatiles and salivary gland extracts of two wild populations

    Czech Academy of Sciences Publication Activity Database

    Goncalves, G. B.; Silva, C. E.; Mendonca, A. D. L.; Vaníčková, Lucie; Tomčala, Aleš; do Nascimento, R. R.

    2013-01-01

    Roč. 96, č. 4 (2013), s. 1365-1374. ISSN 0015-4040 Institutional support: RVO:61388963 Keywords : salivary glands * volatile compounds * sex attractant * wild population * gas chromatography - mass spectrometry Subject RIV: CE - Biochemistry Impact factor: 1.056, year: 2013

  7. Detection of Caribbean fruit fly [(Anastrepha suspensa Loew (Diptera: Tephritidae)]-infested grapefruit with portable gas chromatography

    Science.gov (United States)

    New technologies are being sought by plant protection officials to more quickly and efficiently identify concealed pests in imported commodities. The zNose portable gas chromatography unit was investigated as a tool for identifying organic volatile signatures indicative of Caribbean fruit fly infest...

  8. Laboratory and field cage studies on female-targeted attract-and-kill bait stations for Anastrepha suspensa (Diptera: Tephritidae)

    Science.gov (United States)

    A matrix was developed for use as a base for bait station for pest tephritid fruit flies. The matrix consists of a wax, a hardener and emulsifier, and can be used with a variety of insecticides and other additives. Bait stations were formed into plugs to approximate a sphere shape or into strips of ...

  9. Efficacy Of Some Fungal Isolates And Their Applications For Controlling The Immature Stages Of The Medfly, Ceratitis Capitata (Wiedemann) Before And During Sterile Insect Technique (SIT)

    International Nuclear Information System (INIS)

    The application of the sterile insect technique (SIT) needs a suitable and effective cheap method alternative to chemical pesticides for suppressing or controlling the population density of the Mediterranean fruit fly, Ceratitis capitata (Wi ed.). The effectiveness of five different fungal isolates: Trichoderma longibranchiatum, T. harzianum, Aspergillus terreus, A. niger and Penicillium oxalicum was evaluated against the immature stages of med fly. Filtrate and three spore suspension concentrations (104, 106 and 108 spores/ml) of each fungal isolate were applied to both 3rd larval instar and pupae at two ages (2 and 8 days-old). Percentage pupation, pupal mortality, adult emergence and sex ratio were studied. The percentage of pupation of 3rd larval instar was not affected. However, there was a significant increase (P<0.05) in the percentage of pupal mortality as well as in adult emergence from pupae 2 and 8 days-old at all fungal treatments. Pupae (2 days-old) were more susceptible than pupae (8 days-old) to all fungal treatments. The microbial biomass of both A. terreus and P. oxalicum was selected to apply with different concentrations (5, 10 and 20 w/w) on the pupae at the two ages (2 and 8 days-old). Best results were recorded with biomass at 20% concentration of both fungal isolates. Percentage of mortality was significantly higher (P<0.05) than 50% at the two ages (2 and 8 days-old) for both fungi. A significant decrease (P<0.05) was obtained in adult females emergence resulted in a reduction in the number of eggs deposited and subsequently the punctures on fruits. Chitinase enzyme (important for degradation of chitin which is a component of insect cuticle) and cellulase enzyme (used for improving soil fertility) were determined. The microbial biomass by A. terreus was appeared to be safe to human and animals and can be used for combating immature stages of medfly.

  10. Biological and morphological aspects of Diachasmimorpha longicaudata (Ashmead, 1905) (Hymenoptera: Braconidae) on irradiated larva of Ceratitis capitata (Wiedemann, 1824) (Diptera: Tephritidae)

    International Nuclear Information System (INIS)

    The objective of this work was evaluate some biological and morphological aspects of Diachasmimorpha longicaudata on irradiated and not irradiated larva of bisexual and tsl strains of Ceratitis capitata. The experiments were developed at the Laboratorio de Irradiacao de Alimentos e Radioentomologia (LIARE) of CENA/USP. For gamma radiation treatment it was used a Cobalt-60 source, model Gamma beam-650. Larva of bisexual strain were irradiated with 65 Gy and the tsl strain with 45 Gy. Experiments were carried out at room temperature of 25 ± 2 deg C, 75 ± 5 % RH and 14 hours of photo phase. After irradiation, the bisexual strain larva were exposed to adults of D. longicaudata for parasitization and parameters of percentage adult emergency and rate of male and female of D. longicaudata were observed. For tsl strain, were used larva from the first and the fourth collection only, and the following parameters were observed: percentage of adult emergency, rate of male and female, and the average unitary volume and weight of pupae at the 8th and 16 days after the parasitism date. Other parameters evaluated for tsl strain related to the parasitoid morphology such as, the length of the body, antenna, tibia and ovipositor. As result, both of the first and second experiments, the rate of parasitism was satisfactory, as well as showed larger incidence of females than males in parasitized larva, discarding the possibility that gamma radiation interfere in the sexual rate. No significant differences were observed on pupae volume. Some differences on pupae weight were observed at 8th and 16th day after the parasitism date, which should be associated to pre-emerging flies (8th day) and empty pupa (16th day). None significant difference was observed on morphological parameters, so one can conclude that gamma radiation treatment did not interfere in these quality parameters of the parasitoid. (author)

  11. Evaluation of certain trapping systems for capturing the Mediterranean fruit fly, Ceratitis capitata (Wiedemann) in Assiut, Egypt during 1987-1991

    International Nuclear Information System (INIS)

    Seven types of traps were used for evaluating the efficiency of 16 different trapping systems in catching males and females of medflies in citrus orchards during 1987 to 1991 in Assiut, Egypt. For the non-liquid trapping systems, the Jackson trap (JT) with white sticky insert baited with trimedlure was used as the standard trap, whereas that for the liquid systems was the International Pheromones McPhail trap (IPMT) baited with 300 ml of aqueous solution of nulure + borax. The results obtained under the dry climatic conditions of Assiut showed that, among the non-liquid trapping systems, the Hawaiian dry trap baited with trimedlure plug (TMLP) + DDVP dispenser in the same plastic basket (stuck at the center of trap ceiling) was the best system for catching males of medfly. It was followed by the Nadel dry trap baited with TMLP + Naled plug in the same basket stuck on the ceiling, and the Maghrebmed dry trap baited with TMLP + DDVP dispenser in the same basket hung at the level of trap holes. 11 refs, 5 figs., 9 tabs

  12. Use of gamma irradiation and inert gases in the sterilization of Ceratitis capitata (Wiedemann, 1824) (Diptera-Tephritidae) with the objective of using the sterile insect technique

    International Nuclear Information System (INIS)

    The sterilization of Ceratitis capitata (Wied., 1824) (Dip. Tephritidae) using gamma irradiation (γ) was studied under laboratory conditions at Center for Nuclear Energy in Agriculture (CENA), Piracicaba, Sao Paulo, Brazil. Living conditions for Med fly are optimum in this country and its biological cycle is completed in less than 30 days. There is a large number of varying host fruits for larvae development, which makes this pest very harmful, especially to citrus crops. The sterile insect technique (SIT) is a type of physical control of pests, which does not cause any harm to other insects. Pupae with different ages were initially submitted to 0, 30, 40, 50, 60, 70, 80 and 90 Gy doses. Sterility was determined from fertility of eggs resulting from crosses of irradiated male x normal female and normal male x irradiated female. Later, pupae with 72 + - 12 hrs before emergence were submitted to 70 and 90 Gy doses with carbon dioxide, nitrogen and oxygen fluxes. The sterilizing dose for the males was 90 Gy. Activity, of irradiated with and without gas lux and normal male, was evaluated with an activity-meter, and the dose least harmful to their behaviour was found to be 90 Gy with nitrogen flux. (Author)

  13. Combined effects of gamma irradiation and two plant extracts, Nicandra physaloide and Dodonaea viscosa, on the Mediterranean Fruit Fly Ceratitis Capitata Wiedemann

    International Nuclear Information System (INIS)

    The petroleum ether extract of the plant Nicandra Physaloide L. and the alcoholic plant extract of Dodonaea viscosa L. were subjected to the biological evaluation to assess their toxic effects on the reproductive abilities and survival survival of the Mediterranean fruit fly Ceratitis Capitata Wied., exposed to the treated diet in the larval stage. The produced full grown pupae (1-2 day old) were gamma irradiated (90 Gy). Neither percent pupation, adult emergence nor survival were affected by treating larvae with any of the two plant extracts alone at the tested concentrations (0, 0.5, 1, 3,5 and 7 ppm).Applying each of the two plant extracts recorded insignificant effect on egg hatch. however, irradiating pupae produced from larvae subjected to the extracts significantly affected the male fertility and mating competitiveness

  14. Violation of the Wiedemann-Franz law as evidence of the pseudogap in the iron-based superconductor Ba (Fe1-xC ox ) 2As2

    Science.gov (United States)

    Matusiak, Marcin; Wolf, Thomas

    2015-07-01

    Longitudinal and transverse transport coefficients of the Ba (Fe1-xC ox ) 2A s2 single crystals with x =0 ,0.045 ,0.06 , and 0.244 were measured in the temperature range 1.4 -300 K and in magnetic fields up to 12.5 T. The resulting data were used to determine the temperature dependence of the Hall Lorenz number (Lx y) and its evolution with doping. Lx y is defined by the electronic contributions to the thermal and electrical conductivities and it is found to differ from its canonical behavior. This shows the emergence of a pseudogap in samples at intermediate doping.

  15. Entomology Unit annual report 2002

    International Nuclear Information System (INIS)

    Medfly genetic sexing strains (GSS) are now being used for all operational SIT programmes. In 2002, a new strain, VIENNA 8, was evaluated for stability, quality and production characteristics. The strain carries the inversion as described in the 2001 Annual Report and it can produce ca 10% more males for irradiation and release than could previous GSS. This strain will be transferred to several facilities in 2003. As a further improvement to the strain the visible marker, Sergeant, has been introduced into the strain following the successful field cage evaluations reported in the 2001 Annual Report. In 2003 this strain will be further analysed to assess the stability of the marker. There is considerable interest in the field of medfly SIT in developing procedures whereby eggs can be shipped between different rearing facilities. This could be especially relevant for GSS as a central facility could hold and maintain a specific strain and eggs could be sent to satellite facilities where only males would be reared for sterilization and release. During 2002 a series of egg shipments was received from the medfly mass rearing facility at El Pino, Guatemala and the effect of shipment on the quality parameters of the resultant flies was assessed. It was concluded that although there was some reduction in egg viability, especially for long shipments, it will be possible to develop an effective shipment protocol. In 2002 colonies of Bactrocera oleae and Anastrepha fraterculus were established, the former after some initial problems associated with the unsuitability of the larval diet. In 2003 these colonies will be used to develop improved mass rearing techniques for these species and for A. fraterculus a series of field cage evaluations will be carried out to assess the degree of mating compatibility of populations from the whole geographic range of this species in South and Central America. The development of tsetse mass rearing facilities in Africa is expanding and in

  16. Ionizing radiation quarantine treatments against tephritid fruit flies: a review

    International Nuclear Information System (INIS)

    Fruit flies of the family Tephritidae are considered the most important insect pest risk carried by exported fruits worldwide. Fruits suspected of harboring fruit fly eggs and larvae must be treated to control virtually 100% of any tephritids present. Irradiation is unique among quarantine treatments in that it is the only treatment used which does not cause acute mortality; instead, insects are prevented from maturing or are sterilized. Tephritids have been the most studied group of quarantined pests as far as irradiation; minimum absorbed doses confirmed with large-scale testing to provide control to the probit 9 level (99.9968%) have ranged from 50 to 250 Gy. Considerable work has been done with the Mediterranean fruit fly, Ceratitis capitata (Wiedemann), one of the most important quarantined pests worldwide, and doses suggested to provide quarantine security have varied widely. The fact that insects are still alive for some time after irradiation has been one of the major obstacles to its use. Irradiation may be the most widely applicable quarantine treatment from the standpoint of fruit quality. However, some important fruits shipped across quarantine barriers (mangoes, Mangifera indica L., and citrus) may suffer from doses as low as 150 Gy when applied on a commercial scale where much of the fruit load may receive 300 Gy. Fortunately, some of the important tephritids attacking these fruits, such as Anastrepha spp., can be controlled with lower doses. Mainland USA has begun to use irradiation as a quarantine treatment for some fruits imported from Hawaii since April 1995 and remains the only country using irradiation as a quarantine treatment, although on a very limited basis. Irradiation offers some additional risk abatement advantages over other quarantine treatments. © 1999 Published by Elsevier Science B.V. All rights reserved. (author)

  17. Diagnóstico da área cultivada com uva fina de mesa (Vitis vinifera L sob cobertura plástica e do manejo de pragas

    Directory of Open Access Journals (Sweden)

    Rodrigo Formolo

    2011-03-01

    Full Text Available Neste trabalho, foi realizado o censo das áreas cultivadas com uvas finas de mesa sob cultivo protegido e a identificação das principais espécies de pragas e estratégias de controle empregadas pelos produtores, no município de Caxias do Sul-RS. Na safra de 2007/2008, foram identificados os produtores envolvidos com a atividade no município e através de entrevista presencial e semiestruturada ao estabelecimento produtivo, registrou-se a área cultivada e variedades. Para produtores com cultivo de áreas superiores a 2.000m² da cultivar Itália, com dois anos ou mais de produção, foi aplicado outro questionário na safra de 2008/2009 com o objetivo de levantar as informações referentes: a espécies de insetos e ácaros-praga que danificam as uvas finas de mesa na propriedade, segundo o viticultor; b conhecer a realidade do manejo de insetos e ácaros-praga na cultura; c verificar os parâmetros que o produtor utiliza para a aplicação de inseticidas; d conhecer os produtos aplicados, e e identificar o tipo de assistência técnica recebida pelo viticultor. Foram identificados 43 produtores de uvas finas de mesa sob cultivo protegido com área total cultivada de 30,36 ha, sendo 70,31% desta área da cultivar Itália. As pragas mais importantes mencionadas pelos produtores foram tripes - Frankliniella rodeos Moulton e a mosca-das-frutas-sul-americana Anastrepha fraterculus (Wied. O manejo realizado para controle destas pragas é através da aplicação de inseticidas com os ingredientes ativos acefato e fentiona, respectivamente, com base em calendário. Os principais problemas enfrentados para implementar estratégias de manejo de pragas no cultivo são a falta de assistência técnica, a ausência de metodologias confiáveis para o monitoramento e o reduzido número de inseticidas autorizados para a cultura.

  18. Efeito do ensacamento dos frutos no controle de pragas e doenças e na qualidade e maturação de maçãs 'Fuji Suprema'

    Directory of Open Access Journals (Sweden)

    Rosângela Teixeira

    2011-01-01

    Full Text Available O objetivo deste trabalho foi avaliar a eficiência de embalagens de diferentes materiais para a proteção contra pragas e doenças e seu efeito sobre a qualidade físico-química, maturação e teor de cálcio (Ca em maçãs 'Fuji Suprema'. O experimento foi desenvolvido nas safras de 2007/2008 e 2008/2009, em pomar manejado sob o sistema orgânico, localizado na região de São Joaquim (SC. O pomar era composto por plantas de dez anos de idade da cultivar Fuji Suprema, sobre porta-enxerto 'Marubakaido', com interenxerto 'EM-9'. Depois do raleio manual, aproximadamente 40 dias após a plena floração, os frutos foram ensacados com embalagens plásticas transparentes microperfuradas ou de tecido não texturizado (TNT. Os frutos foram mantidos ensacados até a colheita. A testemunha foi constituída por frutos não ensacados. Na colheita, os frutos foram avaliados quanto aos danos provocados por mosca-das-frutas (Anastrepha fraterculus, mariposa oriental (Grapholita molesta e lagarta enroladeira (Bonagota salubricola. As doenças foram avaliadas pela incidência de sarna da macieira (Venturia inaequalis, podridão amarga (Colletotrichum gloeosporioides e podridão carpelar (Alternaria sp., Fusarium sp.. Também foi avaliada a incidência de distúrbios fisiológicos "russeting" e "bitter pit", atributos físico-químicos de maturação e qualidade e o teor de Ca nos frutos. Independentemente do tipo de embalagem verificou-se que o ensacamento é prática eficaz na proteção contra o ataque de insetos, mas não reduz a incidência e o desenvolvimento de doenças nos frutos. Na safra de 2008/2009, o ensacamento dos frutos aumentou o teor de Ca e reduziu a incidência de "bitter pit", e aumentou a incidência do "russeting". O ensacamento dos frutos antecipou a maturação, especialmente com embalagem plástica transparente microperfurada, e reduziu a coloração vermelha, especialmente com embalagem TNT.

  19. Biological and morphological aspects of Diachasmimorpha longicaudata (Ashmead, 1905) (Hymenoptera: Braconidae) on irradiated larva of Ceratitis capitata (Wiedemann, 1824) (Diptera: Tephritidae);Aspectos biologicos e morfologicos de Diachasmimorpha longicaudata (Ashmead, 1905) (Hymenoptera: Braconidae) criado em larvas irradiadas de Ceratitis capitata (Wiedemann, 1824) (Diptera: Tephritidae)

    Energy Technology Data Exchange (ETDEWEB)

    Valle, Giuliana Etore do

    2006-07-01

    The objective of this work was evaluate some biological and morphological aspects of Diachasmimorpha longicaudata on irradiated and not irradiated larva of bisexual and tsl strains of Ceratitis capitata. The experiments were developed at the Laboratorio de Irradiacao de Alimentos e Radioentomologia (LIARE) of CENA/USP. For gamma radiation treatment it was used a Cobalt-60 source, model Gamma beam-650. Larva of bisexual strain were irradiated with 65 Gy and the tsl strain with 45 Gy. Experiments were carried out at room temperature of 25 +- 2 deg C, 75 +- 5 % RH and 14 hours of photo phase. After irradiation, the bisexual strain larva were exposed to adults of D. longicaudata for parasitization and parameters of percentage adult emergency and rate of male and female of D. longicaudata were observed. For tsl strain, were used larva from the first and the fourth collection only, and the following parameters were observed: percentage of adult emergency, rate of male and female, and the average unitary volume and weight of pupae at the 8{sup th} and 16 days after the parasitism date. Other parameters evaluated for tsl strain related to the parasitoid morphology such as, the length of the body, antenna, tibia and ovipositor. As result, both of the first and second experiments, the rate of parasitism was satisfactory, as well as showed larger incidence of females than males in parasitized larva, discarding the possibility that gamma radiation interfere in the sexual rate. No significant differences were observed on pupae volume. Some differences on pupae weight were observed at 8th and 16th day after the parasitism date, which should be associated to pre-emerging flies (8th day) and empty pupa (16th day). None significant difference was observed on morphological parameters, so one can conclude that gamma radiation treatment did not interfere in these quality parameters of the parasitoid. (author)

  20. New record of Pterotaenia fasciata (Wiedemann) (Diptera, Ulidiidae) in Brazil, a probably mechanical vector of enteric bacteria Novo registro de Pterotaenia fasciata (Wiedemann) (Diptera, Ulidiidae) no Brasil, um provável vetor mecânico de enterobactérias

    OpenAIRE

    Anderson Sena Barnabe; Gabriel Zorello Laporta; Marcia Zorello Laporta; Carlos José Einicker Lamas

    2007-01-01

    Pterotaenia fasciata is commonly recorded in rural areas in Argentina, but during a Diptera survey study developed in a reservoir which retains storm water from polluted canals in an urban area of Taboão da Serra municipality, SP, Brazil, we could capture P. fasciata adults. Enteric bacteria Escherichia coli T. Escherich, 1885 and Proteus sp. were isolated from P. fasciata collected in traps inside the reservoir and around it. Fecal coliforms and E. coli were found in the water of the reservo...

  1. Compatibility of entomopathogenic nematodes and aqueous plant extracts aiming at the control of fruit fly Ceratitis capitata (Wiedemann (Diptera: TephritidaeCompatibilidade de nematóides entomopatogênicos e extratos vegetais aquosos visando o controle da mosca-das-frutas Ceratitis capitata (Wiedemann (Diptera: Tephritidae

    Directory of Open Access Journals (Sweden)

    Cristhiane Rohde

    2013-06-01

    Full Text Available Currently, the fruit fly Ceratitis capitata (Diptera: Tephritidae has been controlled mainly by the chemical method, which is responsible for environmental and public health impacts. It has often been ineffective due to development of resistant insect populations. Thus, it has necessary to research new effective and less impacting control forms. In this sense, the use of entomopathogenic nematodes and plant extracts has been effective for controlling this pest. However, studies are needed to assess the compatibility between these methods, aiming at their use in integrated management programs for this pest. The aim of this study was to evaluate the compatibility of the nematodes Steinernema carpocapsae ALL and Heterorhabditis sp. JPM4 with aqueous extracts prepared from dried plant of cinnamon leaf, twig and fruit (Melia azedarach, rue leaf (Ruta graveolens, ginger (Zingiber officinale and garlic (Allium sativum for the control of C. capitata. The bioassay was carried out in completely randomized design with four replicates per treatment. Each replication consisted of a glass tube containing 1 mL of plant extract 40% w/v and 1 mL suspension of entomopathogenic nematodes with 1800 JI/mL for S. carpocapsae ALL and 600 JI/mL for Heterorhabditis sp. JPM4. The viability and infectivity of this nematode were evaluated on C. capitata larvae after 48 and 120 hours. It was found that all extracts reduced the viability and infectivity of both nematodes and they were incompatible after 120 hours of exposure. The nematode Heterorhabditis sp. JPM4 was more sensitive than the S. carpocapsae ALL as it showed, in the first 48 hours, a reduction in the viability and infectivity of more than 80 and 75%, respectively, when exposed to all the extracts except the ginger.A mosca-das-frutas Ceratitis capitata (Diptera: Tephritidae tem sido controlada, principalmente, pelo método químico, que é o responsável por impactos ambientais e na saúde pública e, muitas vezes, tem sido ineficiente, devido ao desenvolvimento de populações de insetos resistentes. Assim, tem surgido a necessidade de pesquisas com novas formas de controle eficazes e menos impactantes. Nesse sentido, a utilização de nematóides entomopatogênicos e extratos vegetais tem se mostrado eficiente para o controle dessa praga. No entanto, são necessários estudos para avaliar a compatibilidade entre esses métodos, visando o seu uso, em programas de manejo integrado, para essa praga. O objetivo desse trabalho foi avaliar a compatibilidade dos nematóides Steinernema carpocapsae ALL e Heterorhabditis sp. JPM4 com os extratos aquosos, preparados com vegetais secos da folha, ramo e fruto de cinamomo (Melia azedarach, folha de arruda (Ruta graveolens, gengibre (Zingiber officinales e alho (Allium sativum visando o controle de C. capitata. O bioensaio foi conduzido em delineamento inteiramente casualizado, com quatro repetições, por tratamento. Cada repetição foi constituída de um tubo de vidro, contendo 1 mL de extrato vegetal, 40% p/v e 1 mL de suspensão de nematóide entomopatogênico, com 1800 JI/mL, para S. carpocapsae ALL e 600 JI/mL, para Heterorhabditis sp. JPM4. Foi avaliada a viabilidade dos nematóides e a infectividade desses sobre larvas de C. capitata, após 48 e 120 horas. Verificou-se que todos os extratos reduziram a viabilidade e a infectividade de ambos os nematóides, sendo incompatíveis, após 120 horas de exposição. O nematóide Heterorhabditis sp. JPM4 foi mais sensível em relação ao S. carpocapsae ALL, pois apresentou, nas primeiras 48 horas redução na viabilidade e infectividade superior a 80 e 75%, respectivamente, quando exposto a todos os extratos, exceto o de gengibre.

  2. Gamma radiation effects on ovarian development of the Caribbean fruit fly, Anastrepha suspensa (Loew) (Diptera: Tephritidae), and its relationship to sterile fly identification

    International Nuclear Information System (INIS)

    Caribbean fruit fly pupae were subjected late in their development to gamma radiation (Cs-137) doses of 0, 15, 20, 25, 30, 50 and 70 Gy. Twelve hours after the eclosion, adults were transferred into small cages and held under 14 hour photophase at 26@*C and 70% RH. Ovarian dissections were performed at 1, 5, 10, 15, 20, 25 and 30 days after adult eclosion. Irradiated females showed abnormally-developed ovaries and doses of 25 Gy and higher caused severe atrophy. Regeneration was not observed. All irradiated females possessed hypertrophied accessory glands, probably due to accumulation of secretions normally used to lubricate the oviduct

  3. Mixture-Amount Design and Response Surface Modeling to Assess the Effects of Flavonoids and Phenolic Acids on Developmental Performance of Anastrepha ludens

    OpenAIRE

    Pascacio-Villafán, Carlos; Lapointe, Stephen; Williams, Trevor; Sivinski, John; Niedz, Randall; Aluja, Martín

    2014-01-01

    Host plant resistance to insect attack and expansion of insect pests to novel hosts may to be modulated by phenolic compounds in host plants. Many studies have evaluated the role of phenolics in host plant resistance and the effect of phenolics on herbivore performance, but few studies have tested the joint effect of several compounds. Here, we used mixture-amount experimental design and response surface modeling to study the effects of a variety of phenolic compounds on the development and s...

  4. Current initiatives in the mass production and field release of the Mexican fruit fly, Anastrepha ludens, in the lower Rio Grande valley of Texas

    International Nuclear Information System (INIS)

    In order to reduce the program operating expenses in the South Texas Mexican Fruit Fly Sterile Release Program, four cost reduction initiatives are in progress at the U.S. Department of Agriculture's Mexican Fruit Fly Rearing Facility. These initiatives include implementation of a less expensive larval diet formulation, automation of the larval diet dispensing process, processing and reutilization of spent larval diet medium, and a more efficient system for emerging and feeding sterile flies prior to field release. (author)

  5. Evaluation of ionizing radiation as quarantine treatment in Tephritidae (Diptera)

    International Nuclear Information System (INIS)

    Gamma irradiation was used to treat: eggs at different ages of C. capitata, third instar larvae of C. capitata, A. fraterculus and A. obliqua, papayas infested with a known number of C. capitata eggs; papayas and mangoes with C. capitata and A. fraterculus eggs and first instar and mangoes infested with third instar larvae of C. capitata and A. fraterculus. Third instar irradiated larvae of C. capitata were more sensitive than larvae of A. fraterculus and A. obliqua in terms of pupation rate. The pupation and emergence rate were different when C. capitata eggs of 24 and 48 h were irradiated in vitro and in papaya. C. capitata infesting either papaya or mango presented higher frequency of fruits heavily infested (more than 100 pupae per fruit), when compared with A. fraterculus. No emergence was found in C. capitata and A. fraterculus when infested fruits were irradiated at 40, 80 and 160 Gy. The dose of 150 Gy is recommended not only to provide no adult emergence but also to decrease the number of pupae when the commodity is infested by eggs and young larvae. (author)

  6. Novel insecticide strategies such as phototoxic dyes in adult fruit fly control and suppression programmes

    International Nuclear Information System (INIS)

    The problems of public acceptance, ecological impact, and integration with pest management programmes associated with use of broad spectrum insecticides in bait sprays for fruit flies are being addressed in our laboratory by our development of more precisely targeted bait systems which use insecticides which are less toxic to non-target organisms. Historically, bait and insecticide sprays to control fruit flies have been used since the beginning of the 20th century. Initially, inorganic insecticides were recommended. After the Second World War, chlorinated hydrocarbon insecticides replaced inorganic ones only to be replaced by the organic ones that are used at present. Back and Pemberton (1918) stated that baits used for fruit fly control were first recommended by Mally in South Africa for the control of the Mediterranean fruit fly, Ceratitis capitata (Wiedemann), in 1908-1909 and by Berlese in Italy for the control of the olive fruit fly, Bactrocera oleae (Gmelin). The methods were improved by Lounsboury in South Africa in 1912 for the control of C. capitata and by Newman during 1913-1914 in Australia for the control of the Queensland fruit fly, Bactrocera tryoni (Froggatt). In 1910, Marsh used low-volume insecticide applications against the melon fly, Bactrocera cucurbitae (Coquillett), in Hawaii. Thereafter, other investigators adopted the low-volume approach to kill fruit flies. Whenever baits were used, they added carbohydrates and fermenting substances such as sugars, molasses, syrups, or fruit juices. In the 1930s, McPhail (1937), while working with attractants, found that sugar-yeast solutions attracted flies, and, in 1939 found that protein lures were attractive to Anastrepha species, especially to the guava fruit fly, A. striata Schiner (Baker et al. 1944). It was not until 1952, however, when Steiner demonstrated the use of hydrolysed proteins and partially hydrolysed yeast in combination with organophosphate insecticides to control fruit flies, that

  7. Standardization of medfly, Ceratitis capitata (Wiedemann), trapping for use in sterile insect technique programmes: Investigations on the efficiency of various medfly trapping systems in the Western part of Turkey

    International Nuclear Information System (INIS)

    Sixteen combinations formed from various traps and lures were tested within the years 1987-1991. As for the traps, the International Pheromones McPhail Trap (IPMT), the Jackson trap with white or yellow insert, the International Pheromones Sticky Trap (IPST), the Glass McPhail trap and Naldel, Maghrebmed and Hawaiian dry traps, and as for the lure, Nu-lure, Borax, Ammonium phosphate, Trimedlure, and as for the killing agent, DDVP and Naled were used. The field plot design was a randomized block design, and five and six blocks of 5 and 6 traps each were conducted. All traps were hung in medfly, Ceratitis capitata (Wied.), host trees with 15-20 m distance between each two traps. Each experiment consisted of three independent test that were run for two weeks and trap data were collected twice a week. The same Trimedlure, Naled and DDVP dispensers were used for one replicate only. Solutions were renewed at every check. Fruit infestation level was estimated for each test. The assessment was based on the numbers of adults captured. Among the treatments tested, the IPMT baited with Nu-lure (9%), Borax (3%) and Trimedlure plug seemed as the most attractive treatment during the first 4-year experiments (1987-1990) followed by the IPMT baited with Nu-lure and Borax same volume as above. Glass McPhail traps baited with Nu-lure and Borax had equal attractivity to IPMT with Nu-lure and Borax. The IPMT baited with Ammonium phosphate and the IPST baited with Trimedlure were eliminated after the first experimental year. Among the other combinations, the Maghrebmed and Hawaiian traps baited with Trimedlure and DDVP seemed as the most attractive dry traps. (author). 6 refs, 15 tabs

  8. Síndrome de Beckwith-Wiedmann: relato de caso da intervenção fonoaudiológica Beckwith-Wiedemann syndrome: case report of speech therapy intervention

    OpenAIRE

    Bárbara de Lavra-Pinto; Maria Júlia Luz; Ligia Motta; Erissandra Gomes

    2011-01-01

    TEMA: descrever a evolução de um caso de Síndrome de Beckwith-Wiedmann com macroglossia submetido à fonoterapia quanto aos aspectos estruturais e miofuncionais do sistema estomatognático. PROCEDIMENTOS: inicialmente foram coletados os dados do prontuário e foi realizada a entrevista inicial com a mãe. Após, a paciente, com 1 ano e 2 meses de idade, foi submetida à avaliação fonoaudiológica clínica e foram realizados exames complementares (avaliação otorrinolaringológica, exame videofluoroscóp...

  9. Development of female medfly, Ceratitis capitata (Wiedemann) attractant system for trapping and sterility assessment: investigations of the efficiency of various medfly female trapping combinations in the western part of Turkey in support of the sterile insect technique

    International Nuclear Information System (INIS)

    Fourteen combinations, formed from eight traps including some of their versions and seven lures and attractants, were tested between the years of 1994-1997. The traps tested were: Jackson trap (JT); International Pheromone's McPhail traps (IPMT); Yellow and white bottomed, Closed-bottom dry trap (CBDT); Open-bottom dry trap (OBDT); Agrisense dry trap; Tephri trap; and Frutect trap. The lures included: ammonium acetate (AA) plus putrescine (P), the FA-2 lure; AA+P+ trimethylamine (TMA), the FA-3 lure; NuLure and borax (NU+B); a special liquid lure; and Trimedlure (TML). For killing agents, either toxicant squares of DDVP or the surfactant Triton were used. Each experiment per year generally consisted of two independent tests that lasted eight weeks. The field plot design was linear or mostly randomized block design. Fruit infestation level was estimated for each test. Mating status of the captured females was also studied. The assessment was based on the number of adult captured. Singe the yearly experiments were not based on the same treatments, some combinations were eliminated or modified after testing. In 1994, the CBDT baited with FA-2 was tested against JT, TML and seemed almost as attractive as JT with the percentage of 61% - 62% females. A modified trap, the OBDT was tested in 1995 along with IPMT, NU+B and Agrisense drytrap, FA-2 and they showed the weakest capture efficiencies. In 1996 when the OBDT and IPMT were tested with FA-2 and FA-3 lures, the traps with FA-3 showed better performance than the same traps with FA-2 (4.07 vs 1.96 and 10.32 vs 3.04 flies/trap/day (F/T/D) respectively). The Tephri trap, which was first tested with NU+B, had best capture efficiency results when used with DDVP plug. The Frutect trap with its own liquid lure gave the weakest result followed by OBDT, FA-2. In 1997, the Tephri, FA-3,wet, in both tests, seemed to be the most attractive treatment with 14.14 and 3.96 F/T/D followed by Tephri, FA-3,dry with 12.37 and 2.63 F/T/D, IPMT, FA-3,dry with 10.71 and 2.63 F/T/D, and IPMT-FA-3,wet with 8.97 and 2.51 F/T/D, OBDT-FA-3, which was contractors choice, seemed to be the weakest treatment with 1.51 and 0.95 F/T/D. However, it had the highest percentage of female capture percentage (94%-97%). The wet versions of both the Tephri trap and IPMT captured higher percentages of females (92%-94%) and (91%-93%), respectively, than their dry versions (77%-83%) and (76%-79%), respectively. The mating status of the captured females seemed to be a little inconsistent in 1995 and 1996, whereas, the percentage of unmated females were higher than mated ones in all treatments in 1997. (author)

  10. Mass rearing methods for fruit fly

    International Nuclear Information System (INIS)

    The most common rearing methods used for mass rearing of fruit flies, with emphasis on those of economic importance in Mexico such as Anastrepha ludens (the Mexican fruit fly). Anastrepha obliqua (the mango and plum fruit fly) and the exotic fruit fly Ceratitis capitata (the Mediterranean fruit fly) are described here. (author)

  11. Resolving cryptic species complexes of major tephritid pests.

    Science.gov (United States)

    Hendrichs, Jorge; Vera, M Teresa; De Meyer, Marc; Clarke, Anthony R

    2015-01-01

    An FAO/IAEA Co-ordinated Research Project (CRP) on "Resolution of Cryptic Species Complexes of Tephritid Pests to Overcome Constraints to SIT Application and International Trade" was conducted from 2010 to 2015. As captured in the CRP title, the objective was to undertake targeted research into the systematics and diagnostics of taxonomically challenging fruit fly groups of economic importance. The scientific output was the accurate alignment of biological species with taxonomic names; which led to the applied outcome of assisting FAO and IAEA Member States in overcoming technical constraints to the application of the Sterile Insect Technique (SIT) against pest fruit flies and the facilitation of international agricultural trade. Close to 50 researchers from over 20 countries participated in the CRP, using coordinated, multidisciplinary research to address, within an integrative taxonomic framework, cryptic species complexes of major tephritid pests. The following progress was made for the four complexes selected and studied: Anastrepha fraterculus complex - Eight morphotypes and their geographic and ecological distributions in Latin America were defined. The morphotypes can be considered as distinct biological species on the basis of differences in karyotype, sexual incompatibility, post-mating isolation, cuticular hydrocarbon, pheromone, and molecular analyses. Discriminative taxonomic tools using linear and geometric morphometrics of both adult and larval morphology were developed for this complex. Bactrocera dorsalis complex - Based on genetic, cytogenetic, pheromonal, morphometric, and behavioural data, which showed no or only minor variation between the Asian/African pest fruit flies Bactrocera dorsalis, Bactrocera papayae, Bactrocera philippinensis and Bactrocera invadens, the latter three species were synonymized with Bactrocera dorsalis. Of the five target pest taxa studied, only Bactrocera dorsalis and Bactrocera carambolae remain as scientifically valid

  12. Resolving cryptic species complexes of major tephritid pests

    Science.gov (United States)

    Hendrichs, Jorge; Vera, M. Teresa; De Meyer, Marc; Clarke, Anthony R.

    2015-01-01

    Abstract An FAO/IAEA Co-ordinated Research Project (CRP) on “Resolution of Cryptic Species Complexes of Tephritid Pests to Overcome Constraints to SIT Application and International Trade” was conducted from 2010 to 2015. As captured in the CRP title, the objective was to undertake targeted research into the systematics and diagnostics of taxonomically challenging fruit fly groups of economic importance. The scientific output was the accurate alignment of biological species with taxonomic names; which led to the applied outcome of assisting FAO and IAEA Member States in overcoming technical constraints to the application of the Sterile Insect Technique (SIT) against pest fruit flies and the facilitation of international agricultural trade. Close to 50 researchers from over 20 countries participated in the CRP, using coordinated, multidisciplinary research to address, within an integrative taxonomic framework, cryptic species complexes of major tephritid pests. The following progress was made for the four complexes selected and studied: Anastrepha fraterculus complex – Eight morphotypes and their geographic and ecological distributions in Latin America were defined. The morphotypes can be considered as distinct biological species on the basis of differences in karyotype, sexual incompatibility, post-mating isolation, cuticular hydrocarbon, pheromone, and molecular analyses. Discriminative taxonomic tools using linear and geometric morphometrics of both adult and larval morphology were developed for this complex. Bactrocera dorsalis complex – Based on genetic, cytogenetic, pheromonal, morphometric, and behavioural data, which showed no or only minor variation between the Asian/African pest fruit flies Bactrocera dorsalis, Bactrocera papayae, Bactrocera philippinensis and Bactrocera invadens, the latter three species were synonymized with Bactrocera dorsalis. Of the five target pest taxa studied, only Bactrocera dorsalis and Bactrocera carambolae remain as

  13. Revisão de Euprepina Hull (Diptera, Bombyliidae, Bombyliinae) Revision of Euprepina Hull (Diptera, Bombyliidae, Bombyliinae)

    OpenAIRE

    Carlos José Einicker Lamas; Márcia Souto Couri

    1999-01-01

    Euprepina Hull, 1971 (Diptera, Bombyliidae, Bombyliinae) a neotropical genus with ten species is revised. Redescriptions of eight species were made: E. nuda Hull, 1971, E. amabilis (Wulp, 1881), E. beckeri Lamas & Couri, 1998, E. bicincta (Wiedemann, 1830), E. caminaria (Wiedemann, 1830), E. knutsoni Hull, 1971, E. maracajula Hull, 1971 and E. truxalia Hull, 1971, with illustrations of the types, male terminalia and spermathecae. Two synonymies - E. bicincta (Wiedemann, 1830), syn.: E. bicinc...

  14. Disease: H00462 [KEGG MEDICUS

    Lifescience Database Archive (English)

    Full Text Available H00462 Stuve-Wiedemann syndrome Stuve-Wiedemann syndrome is an autosomal recessivel...37502 OMIM: 601559 PMID:8723080 (description) Wiedemann HR, Stuve A. Stuve-Wiedema...eukemia inhibitory factor receptor (LIFR) mutations in Stuve-Wiedemann/Schwartz-Jampel type 2 syndrome. Am J Hum Genet 74:298-305 (2004) ... ...e) Gaspar IM, Saldanha T, Cabral P, Vilhena MM, Tuna M, Costa C, Dagoneau N, Daire VC, Hennekam RC Long-term follow-up in Stuve-Wiede...mann syndrome: a clinical report. Am J Med Genet A 146A:

  15. For lækker til Lulu

    DEFF Research Database (Denmark)

    Holm, Bent

    Review of Katrine Wiedemann's staging of Wedekind's Lulu at The Royal Theatre, including a problematization of the cheoice of repertoire......Review of Katrine Wiedemann's staging of Wedekind's Lulu at The Royal Theatre, including a problematization of the cheoice of repertoire...

  16. 7 CFR 305.31 - Irradiation treatment of imported regulated articles for certain plant pests.

    Science.gov (United States)

    2010-01-01

    ... Drug Administration under 21 CFR part 179. (2) Be constructed so as to provide physically separate... Anastrepha suspensa Caribbean fruit fly 70 Aspidiotus destructor Coconut scale 150 Bactrocera jarvisi...

  17. Avaliação de atrativos alimentares utilizados no monitoramento de mosca-das-frutas em pessegueiro na lapa- PR Food attractants used in the monitoring of fruit flies in peach trees in lapa, Paraná (PR, Brazil

    Directory of Open Access Journals (Sweden)

    Lino Bittencourt Monteiro

    2007-04-01

    Full Text Available As moscas-das-frutas do gênero Anastrepha são uma praga-chave na cultura do pessegueiro no Paraná. Atrativos alimentares foram testados para determinar a sua eficiência no monitoramento de moscas-das-frutas capturadas em frascos caça-moscas McPhail. O experimento foi conduzido por três anos, sendo que, em 2002, foram testados como atrativo o suco de uva da marca Maguari®, o hidrolisado enzimático de proteína da marca BioAnastrepha® e o vinagre da marca Chemin Agrin®. Nos dois anos seguintes, o vinagre foi substituído pelo composto protéico hidrolisável da marca Torula®. As substâncias atrativas à base de proteína foram as mais eficientes na captura de Anastrepha spp., e as capturas ocorreram antecipadas em relação ao suco de uva. De acordo com os resultados, recomendam-se atrativos à base de proteína para monitoramento de Anastrepha spp em pessegueiro, na Lapa.Fruit flies of Anastrepha genus are a key pest in peach trees in Paraná. Food attractants were tested to determine their efficiency in monitoring fruit flies captured in McPhail fly traps. The experiment was conducted over a period of three years. In 2002 the following attractors were tested: Maguari® brand grape juice, BioAnastrepha® brand hydrolyzed enzymatic protein and Chemin Agrin® vinegar. Over the next two years, the vinegar was replaced by Torula® hydrolyzed protein compound. Protein-based attractants were the most efficient in trapping Anastrepha spp. and captured flies earlier comparing to grape juice. According to the results, the use of protein-based attractants for monitoring Anastrepha spp in the Lapa peach trees was recommended.

  18. Disease: H00711 [KEGG MEDICUS

    Lifescience Database Archive (English)

    Full Text Available th disease Beckwith-Wiedemann syndrome [DS:H00713] present two genetically and clinically opposite clinical ...demann syndromes: opposite (epi)mutations in 11p15 result in opposite clinical pi

  19. Disease: H00713 [KEGG MEDICUS

    Lifescience Database Archive (English)

    Full Text Available sell-Silver syndrome [DS:H00713] present two genetically and clinically opposite clinical...Silver-Russell and Beckwith-Wiedemann syndromes: opposite (epi)mutations in 11p15 result in opposite clinical

  20. Umbu-cajá como repositório natural de parasitoide nativo de moscas-das-frutas Umbu-cajá as natural repository of native fruit fly parasitoids

    Directory of Open Access Journals (Sweden)

    Romulo da Silva Carvalho

    2010-10-01

    Full Text Available O objetivo deste trabalho foi avaliar diversidade de espécies de mosca-das-frutas e de parasitóides nativos em frutos de umbu-cajá (Spondias spp.. Os frutos foram coletados em nove municípios do Estado da Bahia. Estimaram-se: a infestação dos frutos pelas moscas; o índice de parasitismo das moscas; e a frequência de ocorrência das espécies de parasitóides. Pela primeira vez, a infestação de Anastrepha obliqua em frutos de umbu-cajá e a presença do parasitóide Asobara anastrephae em larvas de Anastrepha obliqua foram registradas. O parasitoide nativo Doryctobracon areolatus foi o mais frequente. A umbu-cajazeira é repositório natural de parasitoides de tefritídeos, e sua preservação é fundamental para a manutenção das relações tróficas entre as espécies de mosca-das-frutas e parasitoides.The objective of this work was to assess the species diversity of fruit fly and their parasitoids in fruit of umbu-cajá (Spondias spp.. Fruit were collected in nine municipalities of the state of Bahia, Brazil. Fruit infestation, fruit fly parasitism rates, and frequencies of the parasitoid species were estimated. For the first time, Anastrepha obliqua infesting umbu-cajá fruit and the presence of the native parasitoid Asobara anastrephae in Anastrepha oblique larvae were recorded. The native parasitoid Doryctobracon areolatus was the most frequent. Umbu-cajá tree is a natural repository of Tephritidae parasitoids, and its preservation is essential for the maintenance of trophic relationships between fruit fly species and parasitoids.

  1. ANÁLISE FAUNÍSTICA DE ESPÉCIES DE MOSCA-DAS-FRUTAS (DIP., TEPHRITIDAE EM MINAS GERAIS

    Directory of Open Access Journals (Sweden)

    N.A. CANAL

    1998-01-01

    Full Text Available Em seis locais de quatro municípios (Janaúba, Jaíba, Nova Porteirinha e Itacarambí do norte do Estado de Minas Gerais, foram coletados 29.454 espécimes de mosca-das-frutas, pertencentes a Ceratitis capitata e a 20 espécies de Anastrepha. O levantamento foi feito entre janeiro de 94 e dezembro de 96, utilizando armadilhas plásticas tipo McPhail. Ceratitis capitata foi a espécie predominante em áreas urbanas. As espécies de Anastrepha predominaram em áreas rurais. A. obliqua, A. zenildae e Anastrepha n. sp.3 foram as espécies predominantes do gênero, entretanto, essa predominância variou de local para local em função da disponibilidade de hospedeiros. As comunidades apresentaram índices de diversidade baixos e quocientes de similaridade entre 73 e 100%.A total of 29,454 specimens of fruit fly were trapped in six sites of four counties (Janaúba, Jaíba, Nova Porteirinha and Itacarambí of the north of the State of Minas Gerais, Brazil. The specimens were collected using McPhail plastic traps from January 1994 to December 1996. The trapped fruit flies belonged to Ceratitis capitata and to 20 species of Anastrepha. Ceratitis capitata was the predominant species in the urban areas and Anastrepha species were predominant in the field areas. A. obliqua, A. zenildae and Anastrepha n. sp.3 were the predominant species of the genera, whereas the predominant species differed among localities, according to host availability. The diversity indexes were low and the coefficient of similarity varied from 73 to 100%.

  2. Clytini neotropicais II (Coleoptera, Cerambycidae, Cerambycinae Neotropical Clytini II (Coleoptera, Cerambycidae, Cerambycinae

    Directory of Open Access Journals (Sweden)

    Ubirajara R. Martins

    2008-01-01

    Full Text Available Novas espécies são descritas e figuradas: Megacyllene (M. nevermanni sp. nov. da Costa Rica (Limón; M. (M. punensis sp. nov. do Peru (Puno; Neoclytus fraterculus sp. nov. da Venezuela (Guárico; N. zonatus da Guatemala (Alta Verapaz; N. vitellinus sp. nov. da Costa Rica (Guanacaste; Mecometopus erratus sp. nov. da Colômbia (Boyacá; M. latithorax sp. nov. do Panamá (Panamá.New species described and figured: Megacyllene (M. nevermanni sp. nov. from Costa Rica (Limón; M. (M. punensis sp. nov. from Peru (Puno; Neoclytus fraterculus sp. nov. from Venezuela (Guárico; N. zonatus from Guatemala (Alta Verapaz; N. vitellinus sp. nov. from Costa Rica (Guanacaste; Mecometopus erratus sp. nov. from Colombia (Boyacá; M. latithorax sp. nov. from Panama (Panama.

  3. New records of fruit flies (Diptera: Tephritidae), wild hosts and parasitoids (Hymenoptera: Braconidae) in the Brazilian Amazon

    Energy Technology Data Exchange (ETDEWEB)

    Jesus, Cristiane R. de; Oliveira, Manoela N. de; Silva, Ricardo A. da [EMBRAPA Amapa, Macapa, AP (Brazil); Pereira, Julia D.B. [Universidade Federal do Amapa, Macapa, AP (Brazil); Souza Filho, Miguel F. [Instituto Biologico, Campinas, SP (Brazil); Costa Neto, Salustiano V. da [Instituto de Pesquisas Cientificas e Tecnologicas do Amapa, Macapa, AP (Brazil); Marinho, Claudia F.; Zucchi, Roberto A. [Escola Superior de Agricultura Luiz de Queiroz (ESALQ/USP), Piracicaba, SP (Brazil). Dept. de Entomologia, Fitopatologia e Zoologia Agricola

    2008-11-15

    Anastrepha anomala Stone was obtained from Parahancornia amapa (Huber) Ducke (Apocynaceae) fruits, and Anastrepha hastata Stone from Cheiloclinium cognatum (Miers.) (Hippocrateaceae) in the State of Amapa, Brazil. Two braconids, Doryctobracon sp. and Opius bellus Gahan, were reared from the latter fruit fl y species. This is the fi rst record of P. amapa as a fruit fl y host. C. cognatum is the fi rst host known to A. hastata. Both braconids are also the fi rst records of parasitoids for this species. (author)

  4. New records of fruit flies (Diptera: Tephritidae), wild hosts and parasitoids (Hymenoptera: Braconidae) in the Brazilian Amazon

    International Nuclear Information System (INIS)

    Anastrepha anomala Stone was obtained from Parahancornia amapa (Huber) Ducke (Apocynaceae) fruits, and Anastrepha hastata Stone from Cheiloclinium cognatum (Miers.) (Hippocrateaceae) in the State of Amapa, Brazil. Two braconids, Doryctobracon sp. and Opius bellus Gahan, were reared from the latter fruit fl y species. This is the fi rst record of P. amapa as a fruit fl y host. C. cognatum is the fi rst host known to A. hastata. Both braconids are also the fi rst records of parasitoids for this species. (author)

  5. Functional comparison of three transformer gene introns regulating conditional female lethality

    Science.gov (United States)

    The trasformer gene plays a critical role in the sex determination pathways of many insects. We cloned two transformer gene introns from Anastrepha suspensa, the Caribbean fruit fly. These introns have sequences that putatively have a role in sex-specific splicing patterns that affect sex determinat...

  6. Revisão de Euprepina Hull (Diptera, Bombyliidae, Bombyliinae Revision of Euprepina Hull (Diptera, Bombyliidae, Bombyliinae

    Directory of Open Access Journals (Sweden)

    Carlos José Einicker Lamas

    1999-06-01

    Full Text Available Euprepina Hull, 1971 (Diptera, Bombyliidae, Bombyliinae a neotropical genus with ten species is revised. Redescriptions of eight species were made: E. nuda Hull, 1971, E. amabilis (Wulp, 1881, E. beckeri Lamas & Couri, 1998, E. bicincta (Wiedemann, 1830, E. caminaria (Wiedemann, 1830, E. knutsoni Hull, 1971, E. maracajula Hull, 1971 and E. truxalia Hull, 1971, with illustrations of the types, male terminalia and spermathecae. Two synonymies - E. bicincta (Wiedemann, 1830, syn.: E. bicincta Hull, 1971; and E. nuda Hull, 1971, syn.: E. shannoni Hull, 1971 - are proposed. A key to species are presented except to E. goyaz (Macquart, 1840 and E. aperta (Macquart, 1847, which were not included in this study, as no material was examined.

  7. Ocorrência e Sazonalidade de Muscóides (Diptera, Calliphoridae de Importância Sanitária no Município de Itaboraí, RJ, Brasil

    Directory of Open Access Journals (Sweden)

    José Batista-da-Silva

    2010-04-01

    Abstract. This work was carried out to contribute to the knowledge of Calliphoridae flies (Diptera in Itaboraí, RJ, Brazil and quantify the predominant species of health importance. The flies were captured in eight different points in the city over a one year period, always using fish as bait, separated by species and kept properly in an entomological box in the Laboratório de Transmissores de Leishmaniose (Setor de Entomologia Médica e Forense - IOC / FIOCRUZ, RJ. A total of 1792 Calliphoridae flies were captured, belonging to seven (7 species: Chloroprocta idioidea (Robineau-Desvoidy (0.11%, Chrysomya megacephala (Fabricius (87.94%, Chrysomya albiceps (Wiedemann (6.70%, Chrysomya putoria (Wiedemann (1.23%, Cochliomyia macellaria (Fabricius (0.56%, Hemilucilia segmentaria (Fabricius (0.33%, Lucilia eximia (Wiedemann (3.13%.

  8. Hexen – Konstruktion und Funktionen eines Mythos Witches—Construction and Function of a Myth

    Directory of Open Access Journals (Sweden)

    Silke Eilers

    2008-03-01

    Full Text Available Felix Wiedemann legt mit seiner Dissertation eine Studie über moderne Hexenbilder vor. Auf der Grundlage einer umfassenden Quellenarbeit analysiert er Entwicklung und Rezeption von Hexenvorstellungen im 19. und 20. Jahrhundert. Bekannte Motive sind dabei die Hexe als weise Frau und als Verfolgte, die gegen christliche Traditionen rebelliert. Wiedemann untersucht den Stellenwert des Hexenmythos als Projektionsfläche für Sehnsüchte, Ideale, Selbst- und Fremdbilder. Er konzentriert sich dafür auf die völkische Bewegung, das Neuheidentum und den Feminismus und arbeitet Parallelen der jeweiligen Hexenrekurse heraus. Zum verbindenden Moment dieser so unterschiedlichen Bewegungen erklärt Wiedemann die Dominanz eines positiven Hexenbildes, dessen Ursprung er auf literarische und mythologische Konstrukte des 19. Jahrhunderts zurückführt.Felix Wiedemann’s dissertation presents a study of modern images of witches. Based on comprehensive work with sources he analyses the development and reception of the witch conception in the 19th and 20th centuries. Familiar motifs include the witch as a wise woman and as a persecuted woman who rebels against Christian traditions. Wiedemann examines the significance of the witch myth as a screen onto which desires, ideals, and images of the self and the other are projected. In so doing, he concentrates on the folk movement, new paganism, and feminism and teases out parallels between the respective recourse to the witch image in each. Wiedemann sees the dominance of a positive image of the witch as the unifying moment of these otherwise so varied movements, an image which according to Wiedemann has its origin in literary and mythological constructs of the 19th century.

  9. Charge and Heat Transport in Polycrystalline Metallic Nanostructures

    Institute of Scientific and Technical Information of China (English)

    ZHANG Xing; TAKAHASHI Koji; FUJII Motoo

    2008-01-01

    Metals are typically good conductors in which the abilities to transport charge and to transport heat can be related through the Wiedemann-Franz law. Here we report on an abnormal charge and heat transport in polyerystalline metallic nanostructures in which the ability to transport charge is weakened more obviously than that to transport heat. We attribute it to the influence of the internal grain boundaries and have formulated a novel relation to predict the thermal conductivity. The Wiedemann-Franz law is then modified to account for the influence of the grain boundaries on the charge and heat transport with the predictions now agreeing well with the measured results.

  10. GNATHOPLEURA SEMIRUFA (BRULLÉ, 1846 PARASITOID OF DIPTEROUS SYNANTHROPIC IN SOUTHERN OF GOIÁS, BRAZIL

    Directory of Open Access Journals (Sweden)

    Carlos H MARCHIORI

    2014-06-01

    Full Text Available This work reports the occurrence of parasitoid Gnathopleura semirufa (Brullé, 1846 (Hymenoptera: Braconidae parasitizing Oxysarcodexia thornax (Walker (Diptera: Sarcophagidae, Peckia chrysostoma (Wiedemann (Diptera: Sarcophagidae and Sarcodexia lambens (Wiedemann (Diptera: Sarcophagidae in Brazil. The pupae were obtained by the flotation method. They were individually placed in gelatin capsules until the emergence of flies or their parasitoids. The percentage of parasitism of O. thornax, P. chrysostoma and S. lambens was 24.6%, 35.7% and 17.0%, respectively.

  11. Revision of the Neotropical Xanthandrus Verral (Diptera, Syrphidae

    Directory of Open Access Journals (Sweden)

    Borges Zuleica M.

    2003-01-01

    Full Text Available The Neotropical genus Xanthandrus Verral, 1901 is revised. Six species are redescribed: X. bucephalus (Wiedemann, 1830, X. cubanus Fluke, 1936, X. mellinoides (Macquart, 1846, X. mexicanus Curran, 1930, X. nitidulus Fluke, 1937, and X. plaumanni Fluke, 1937. Three species are included based on original descriptions: X. flavomaculatus Shannon, 1927, X. palliatus (Fluke, 1945, and X. simplex (Loew, 1861. New synonyms proposed: Argentinomyia longicornis (Walker, 1837 = Xanthandrus biguttatus Hull, 1945 syn. nov., and Xanthandrus bucephalus (Wiedemann, 1830 = Melanostoma quadrinotata Bigot, 1884 syn. nov. Description of terminalia, a key for Neotropical species, and illustrations are also presented.

  12. Kirjanik soovitab / Olavi Ruitlane

    Index Scriptorium Estoniae

    Ruitlane, Olavi, 1969-

    2009-01-01

    Tutvustus: Volkonski, Peeter. ISBN 978-9985-9980-6-9. Tallinn : Menu Kirjastus, 2009 ; Preussler, Otfried. Krabat / saksa keelest tõlkinud Linda Ariva. [Tallinn] : Tänapäev, 2009 ; Teede, Andra. Atlas : [luuletused]. Pärnu : Jumalikud Ilmutused, 2009 ; Wiedemann, Vladimir. Maagide kool. Eesti okultne underground 1970-1980. Tartu : Hotpress, 2008

  13. Thermal conductivity of a strongly coupled hydrogen plasma

    International Nuclear Information System (INIS)

    ''Molecular Dynamics'' simulations has been used to compute the thermal conductivity of the strongly coupled, nearly classical hydrogen plasma. The relaxation of a suitably defined heat current is significantly faster than the decay of the microscopic electric current. Electrical and thermal conductivities are not related by a simple Wiedemann-Franz law in the dense plasma

  14. 78 FR 6227 - Importation of Fresh Apricots From Continental Spain

    Science.gov (United States)

    2013-01-30

    ... scorch, Apiognomonia erythrostoma (Pers.), a fungus, and Brown rot, Monilinia fructigena Honey, a fungus.... The PRA determined that three of these four quarantine pests--brown rot, Medfly, and plum fruit moth...: Apiognomonia erythrostoma (Pers.), a brown rot fungus; Ceratitis capitata Wiedemann, the Mediterranean...

  15. Intra-tree activity of male Mediterranean fruit flies (Diptera:Tephritidae): effects of posteclosion light, crowding, adult diet, and irradiation

    International Nuclear Information System (INIS)

    Laboratory-reared Mediterranean fruit flies Ceratitis capitata (Wiedemann) were held under varying conditions of fight, density, food, and irradiation prior to release of males on potted guava, Psidium guajava L., plants in outdoor cages. Male activity after release was measured in terms of number of leaves visited and duration of flights within the plant canopy

  16. The Sterile Insect Technique and the Mediterranean Fruit Fly (Diptera: Tephritidae): Assessing the Utility of Aromatherapy in a Hawaiian Coffee Field

    Science.gov (United States)

    The Sterile Insect Technique (SIT) is widely used in integrated programs against tephritid fruit fly pests, particularly the Mediterranean fruit fly (medfly), Ceratitis capitata (Wiedemann). Unfortunately, the mass-rearing procedures inherent to the SIT often lead to a reduction in the mating abilit...

  17. Export of commercial 'Hass' avocados from Argentina poses negligible risk of ceratitis capitata (Diptera: Tephritidae) infestation

    Science.gov (United States)

    Quarantine restrictions due to the Mediterranean fruit fly, Ceratitis capitata (Wiedemann), prevent Argentina from exporting avocados, Persea americana Miller, cv. Hass, to certain countries. Hass avocado at the hard, mature green stage is potentially a conditional nonhost for C. capitata, which cou...

  18. Determination of KCNQ1OT1 and H19 methylation levels in BWS and SRS patients using methylation-sensitive high-resolution melting analysis

    NARCIS (Netherlands)

    M. Alders; J. Bliek; K. van der Lip; R. van der Bogaard; M. Mannens

    2009-01-01

    Beckwith-Wiedemann syndrome (BWS) and Silver-Russell syndrome (SRS) are caused by imprinting defects on chromosome 11p15.5. Standard diagnostic tests for these syndromes include methylation analysis of the differential methylated regions of the H19 and KCNQ1OT1 genes. Traditionally this has been con

  19. Captures of bactrocera fruit flies (Diptera: Tephritidae) and nontarget insects in biolure and torula yeast traps in Hawaii

    Science.gov (United States)

    BioLure, a synthetic food attractant for Mediterranean fruit fly (Ceratitis capitata (Wiedemann)) that uses a combination of three chemical components (ammonium acetate, trimethylamine hydrochloride and putrescine), was deployed in MultiLure traps in predominantly native forests, non-native forests,...

  20. Cloning and mRNA Expression of NADH Dehydrogenase during Ochlerotatus taeniorhynchus Development and Pesticide Response

    Science.gov (United States)

    NADH dehydrogenase, the largest of the respiratory complexes, is the first enzyme of the mitochondrial electron transport chain. We have cloned and sequenced cDNA of NADH dehydrogenase gene from Ochlerotatus (Ochlerotatus) taeniorhynchus (Wiedemann) adult (GeneBank Accession number: FJ458415). The ...

  1. Occurrence and managing of fruit flies in Cuba

    International Nuclear Information System (INIS)

    Fruit flies (Diptera: Tephritidae) are considered to be pests of potential importance because they damage fruits or limit their commercialisation. They therefore constitute one of the principal problems for the fruit industry world-wide. Of particular interest are the species of the genus Anastrepha Schiner widely distributed in the neotropical region where, according to Norrbom and Chung (1988), more than 180 species are known. In Cuba, five members of this genus are reported in addition to Toxotrypana curvicauda Gerstaeker and up to now, no other species are known (Alayo and Garcia, 1983). Although Ceratitis capitata Wiedeman or pest fruit flies from the genus Anastrepha and Bactrocera do not exist in the country, a defence programme has been operating for many years which includes among other measures, fruit sampling and trapping. The present work was undertaken in order to study the status of these insects in Cuba

  2. Parasitismo natural em moscas-das-frutas (Diptera: Tephritidae no semiárido do sudoeste da Bahia, Brasil Natural parasitism in fruit-flies in the fruticulture area of anagé, semi-arid of southwestern Bahia, Brazil

    Directory of Open Access Journals (Sweden)

    Ricardo Falcão de Sá

    2012-12-01

    Full Text Available Parasitoides são importantes agentes de controle natural de tefritídeos, e os conhecimentos sobre as relações tritróficas podem subsidiar o manejo destas pragas. Este trabalho objetivou estimar índices de parasitismo em moscas-das-frutas, em 21 espécies vegetais, e identificar as espécies de parasitoides associados, nas condições do semiárido do sudoeste da Bahia. Oito hospedeiros apresentaram infestação por Anastrepha spp. e, destes, em quatro, ocorreu parasitismo superior a 20,0%, sendo: 20,8% (Ziziphus joazeiro L.; 21,3% (Spondias tuberosa L.; 32,4% (Spondias purpurea L. e 57,1% (Malpighia emarginata L.. Os parasitoides coletados pertencem à família Braconidae, sendo 89% de Doryctobracon areolatus e 11% de Asobara anastrephae.Parasitoids are important natural control agents of tephritids and knowledge about the tritrophic relationships can support the management of these pests. This study aimed to estimate of parasitism indexes in fruit flies in 21 plant species and identify the species of parasitoids associated, in semiarid conditions of Southwestern Bahia. Eight hosts showed infestation by Anastrepha spp. and, of these, four occurred parasitism above 20.0%, of which: 20.8% (Ziziphus joazeiro L.; 21.3% (Spondias tuberosa L.; 32.4% (Spondias purpurea L. and 57.1% (Malpighia emarginata L.. The collected parasitoids belong to the Braconidae family, 89% of Doryctobracon areolatus and 11% of Asobara anastrephae.

  3. Los insectos plaga de las Myrtaceae frutales en Pucallpa, Amazonia peruana

    OpenAIRE

    Couturier, Guy; Quinonez R., L.; Gonzalez R., I.; Riva R., R.; Young R., F.

    1996-01-01

    During two series of observations realized in the Pucallpa region, Peru in 1994 and 1995, some species of insect pests have been observed on cultivated trees of #Eugenia stipitata$ ("araza"), #Myrciaria dubia$ ("camu-camu") and #Myrciaria uniflora ("pitanga") belonging to the family #Myrtaceae$. #Anastrepha sororcula$ Zucchi and #Pseudoparlatoria turgida$ Ferris are reported for the first time in Peru. (Résumé d'auteur)

  4. Disinfestation of mangoes by irradiation; Desinfestacion de mango por irradiacion

    Energy Technology Data Exchange (ETDEWEB)

    Bustos R, M.E

    1992-05-15

    The mango is a fruit-bearing very important in the mexican economy. Mexico is between the first positions of the world like country producing with an average export volume of 40,000 annual tons in the last years. For this reason it was decided to make this investigation, which was developed according to the investigation protocols proposed by the Agricultural Research Service of the USA (ARS - US DOA). The objective is to account with the technical and scientific necessary bases to propose to the US DOA the regulation of the irradiation process like quarantine treatment for Mexican export mango. The goals are: to determine in the laboratory the minimum dose (Dmin.) to inhibit the emergency of adults of the species of the fruit flies of more importance for Mexico. To confirm the least radiation dose Dmin. for quarantine treatment based on the safety value Probit-9. To evaluate the mango quality irradiated to 2 and 2.5 times the Dmin. proposal for quarantine treatment. According to information provided by the General Direction of Vegetable Sanity, it was determined that the fly species of the fruit of more economic importance for Mexico are of the genus Anastrepha ludens, Anastrepha serpentina, Anastrepha obliqua and Ceratitis capitata. (Author)

  5. Disinfestation of mangoes by irradiation

    International Nuclear Information System (INIS)

    The mango is a fruit-bearing very important in the mexican economy. Mexico is between the first positions of the world like country producing with an average export volume of 40,000 annual tons in the last years. For this reason it was decided to make this investigation, which was developed according to the investigation protocols proposed by the Agricultural Research Service of the USA (ARS - US DOA). The objective is to account with the technical and scientific necessary bases to propose to the US DOA the regulation of the irradiation process like quarantine treatment for Mexican export mango. The goals are: to determine in the laboratory the minimum dose (Dmin.) to inhibit the emergency of adults of the species of the fruit flies of more importance for Mexico. To confirm the least radiation dose Dmin. for quarantine treatment based on the safety value Probit-9. To evaluate the mango quality irradiated to 2 and 2.5 times the Dmin. proposal for quarantine treatment. According to information provided by the General Direction of Vegetable Sanity, it was determined that the fly species of the fruit of more economic importance for Mexico are of the genus Anastrepha ludens, Anastrepha serpentina, Anastrepha obliqua and Ceratitis capitata. (Author)

  6. Species of fruit flies (Diptera: Tephritidae: in a transect of the Amazonian Rainforest in Oiapoque, Amapá, Brazil

    Directory of Open Access Journals (Sweden)

    Rose B. Rodrigues Trindade

    2011-10-01

    Full Text Available Species of fruit flies (Tephritidae were surveyed in a transect of the Amazonian Rainforest in the district of Clevelândia do Norte, municipality of Oiapoque, state of Amapá, Brazil. This study describes the diversity of fruit fly species sampled inside this transect (2.2 linear km. Eleven McPhail traps were serviced weekly from June 2002 to June 2003. A total of 55 samples were obtained, totaling 125 specimens of Tephritidae. Anastrepha Schiner, 1868 was the most abundant and diverse genus, with 18 species caught. Two new species, A. oiapoquensis Norrbom & Uchôa, 2011 and A. siculigera Norrbom & Uchôa, 2011, were discovered in this survey. Anastrepha coronilli Carrejo & González, 1993 (n = 40 was the most abundant species. Six species, Anastrepha amita Zucchi, 1979, A. duckei Lima, 1934, A. flavipennis Greene, 1934, A. minensis Lima, 1937, A. pseudoparallela (Loew, 1873, and A. submunda Lima, 1937, are recorded for the first time from Amapá. Three of them, A. minensis, A. pseudoparallela, and A. submunda, are reported for the first time from northern Brazil. This paper updates to 36 the number of frugivorous species of Tephritidae in Amapá.

  7. [Chewing-lice (Phtihiraptera: Amblycera, Ischnocera) occurring on birds in the Konya zoo].

    Science.gov (United States)

    Dik, Bilal; Uslu, Uğur

    2009-01-01

    In this study, 25 birds belonging to 15 different species at the zoo in Konya were inspected for the presence of chewing-lice. Three Long-legged Buzzards (Buteo rufinus), one Imperial Eagle (Aquila heliaca) and one Marsh Harrier (Circus aeruginosus) were found to be infested by chewing-lice. Two hundred and eleven chewing-lice specimens were collected from the birds and seven species were identified. They were mounted on slides separately in Faure forte medium or Canada balsam after clearing in 10% KOH. Morphologic characteristics of the chewing-lice were examined and measured under the light microscope. Laemobothrion maximum (Scopoli, 1763), Craspedorrhynchus platystomus (Burmeister, 1838) and Degeeriella fulva (Giebel, 1874) were detected on Long-legged buzzards; Craspedorrhynchus fraterculus (Eichler & Zlotorzycka, 1975), Degeeriella aquilarum (Eichler, 1943) and Colpocephalum impressum (Rudow, 1866) on the Imperial Eagle; and Degeeriella fusca (Denny, 1842), on the Mars Harrier. C. fraterculus, D. aquilarum, C. impressum and D. fusca were found for the first time on these raptors in Turkey and information about these species were given in this paper. PMID:19367546

  8. Ocorrência e Sazonalidade de Muscóides (Diptera, Calliphoridae de Importância Sanitária no Município de Itaboraí, RJ, Brasil

    Directory of Open Access Journals (Sweden)

    José Antonio Batista-da-Silva

    2010-04-01

    Full Text Available Este trabalho teve como objetivo contribuir com o conhecimento da entomofauna de Calliphoridae (Diptera no município de Itaboraí, RJ, Brasil e quantificar as espécies mais predominantes de importância sanitária. As moscas foram capturadas em oito diferentes pontos no período de um ano, usando sempre isca de peixe. Após triagem, as espécies foram separadas por espécie e inseridas na coleção entomológica do Laboratório de Transmissores de Leishmaniose (Setor de Entomologia Médica e Forense do Instituto Oswaldo Cruz - IOC/FIOCRUZ. Foram capturadas 1792 moscas pertencentes a sete (7 espécies da família Calliphoridae: Chloroprocta idioidea (Robineau-Desvoidy (0,11%, Chrysomya megacephala (Fabricius (87,94%, Chrysomya albiceps (Wiedemann (6,70%, Chrysomya putoria (Wiedemann (1,23%, Cochliomyia macellaria (Fabricius (0,56%, Hemilucilia segmentaria (Fabricius (0,33%, Lucilia eximia (Wiedemann (3,13%.Occurrence and seasonality of muscoid (Diptera, Calliphoridae of public healthimportance in Itaboraí (RJ, BrazilAbstract. This work was carried out to contribute to the knowledge of Calliphoridae flies (Diptera in Itaboraí, RJ, Brazil and quantify the predominant species of health importance. The flies were captured in eight different points in the city over a one year period, always using fish as bait, separated by species and kept properly in an entomological box in the Laboratório de Transmissores de Leishmaniose (Setor de Entomologia Médica e Forense - IOC / FIOCRUZ, RJ. A total of 1792 Calliphoridae flies were captured, belonging to seven (7 species: Chloroprocta idioidea (Robineau-Desvoidy (0.11%, Chrysomya megacephala (Fabricius (87.94%, Chrysomya albiceps (Wiedemann (6.70%, Chrysomya putoria (Wiedemann (1.23%, Cochliomyia macellaria (Fabricius (0.56%, Hemilucilia segmentaria (Fabricius (0.33%, Lucilia eximia (Wiedemann (3.13%.

  9. A survey of syrphid predators of Nasonovia ribisnigri in organic lettuce on the central coast of California.

    Science.gov (United States)

    Smith, Hugh A; Chaney, William E

    2007-02-01

    Organic lettuce, Lactuca sativa L., producers on California's Central Coast rely on endemic syrphid flies (Diptera: Syrphidae) to suppress populations of Nasonovia ribisnigri Mosley (Homoptera: Aphididae) and other aphids affecting lettuce. Growers are using various forms of habitat manipulation to enhance biological control. We surveyed syrphids collected from organic romaine in and around the Salinas Valley from March through September 2005 to gain a better understanding of the species responsible for aphid suppression and to examine possible implications for biocontrol. The primary species of syrphid fly reared were Toxomerus marginatus (Say) (39%), Platycheirus stegnus (Say) (27%), Sphaerophoria sulfuripes (Thomson) (13%), and Allograpta obliqua (Say) (10%). Syrphus opinator Osten Sacken (2%), Toxomerus occidentalis (Curran) (1.3%), and Eupeodes volucris Osten Sacken (1%) were less common. Sphaerophoria pyrrhina Bigot, Scaeva pyrastri (L.), Platycheirus obscurus Say, Allograpta exotica Wiedemann, and Eupeodes americanus Wiedemann each made up parasitized by either Diplazon sp. (Hymenoptera: Ichneumonidae) or Pachyneuron sp. (Hymenoptera: Pteromalidae). PMID:17370807

  10. Atratividade de diferentes iscas e sua relação com as fases de desenvolvimento ovariano em calliphoridae e sarcophagidae (insecta, diptera Attractiveness of differents baits and its relation with ovarian development fases in Calliphoridae ano Sarcophagidae (Insecta, Diptera

    Directory of Open Access Journals (Sweden)

    José Mario d'Almeida

    1994-01-01

    Full Text Available Attrativeness of differents baits (fish, faeces and banana upon ovarian development fases of Calliphoridae and Sarcophagidae was evaluated. The insects were captured in Distrito Federal (urban area and Rio de Janeiro city (beach, zoological garden, urban area and Tijuca forest. The most frequent species captured were: Calliphoridae - Chrysomya megacephala (Fabricius, 1794 78,9% and Chtysomya puloria (Wiedemann, 1818 5,4% - and Sarcophagidae - Sarcophagula Wulp, 1887 2,3% and Peckya chrysostoma (Wiedemann. 1830 2,2%. Fish was more attractive to females of Calliphoridae flies in intense ovarian vitelogenesis, although banana atracted more flies with mature eggs. Faeces and fish were more atractive for Sarcophagidae in the beggining of vitelogenesis.

  11. Comparative morphology and identification key for females of nine Sarcophagidae species (Diptera with forensic importance in Southern Brazil

    Directory of Open Access Journals (Sweden)

    Karine Pinto e Vairo

    2015-09-01

    Full Text Available ABSTRACTThe identification of female flesh flies was always considered a difficult task since morphological descriptions and keys for females are rare. Even in a forensic entomology framework, where females play a major role, female flesh flies are usually not identified. In order to fill this gap in Southern Brazil fauna we provide detailed descriptions and key for the female of nine species included in four genera: Microcerella halli (Engel, Oxysarcodexia paulistanensis (Mattos, Oxysarcodexia riograndensis (Lopes, Peckia (Euboettcheria australis (Townsend, Peckia(Euboettcheria florencioi (Prado and Fonseca, Peckia (Pattonella intermutans (Walker, Peckia(Pattonella resona (Lopes, Peckia (Sarcodexia lambens (Wiedemann, and Sarcophaga(Bercaea africa (Wiedemann. These species are distinguished mainly by genital characters as tergite 6 divided or undivided, presence of tergite 8, spermatheca morphology and vaginal plate shape.

  12. Different effects of grain boundary scattering on charge and heat transport in polycrystalline platinum and gold nanofilms

    Institute of Scientific and Technical Information of China (English)

    Ma Wei-Gang; Wang Hai-Dong; Zhang Xing; Takahashi Koji

    2009-01-01

    The in-plane electrical and thermal conductivities of several polycrystalline platinum and gold nanofilms with different thicknesses are measured in a temperature range between the boiling point of liquid nitrogen (77 K) and room temperature by using the direct current heating method. The result shows that both the electrical and thermal conductivities of the nanofilms reduce greatly compared with their corresponding bulk values. However, the electrical conductivity drop is considerably greater than the thermal conductivity drop, which indicates that the influence of the internal grain boundary on heat transport is different from that of charge transport, hence leading to the violation of the Wiedemann-Franz law. We build an electron relaxation model based on Matthieseen's rule to analyse the thermal conductivity and employ the Mayadas & Shatzkes theory to analyse the electrical conductivity. Moreover, a modified Wiedemann-Franz law is provided in this paper, the obtained results from which are in good agreement with the experimental data.

  13. Conditional embryonic lethality to improve the sterile insect technique in Ceratitis capitata (Diptera: Tephritidae)

    OpenAIRE

    Franz Gerald; Zacharopoulou Antigone; Caceres Carlos; Schetelig Marc F; Wimmer Ernst A

    2009-01-01

    Abstract Background The sterile insect technique (SIT) is an environment-friendly method used in area-wide pest management of the Mediterranean fruit fly Ceratitis capitata (Wiedemann; Diptera: Tephritidae). Ionizing radiation used to generate reproductive sterility in the mass-reared populations before release leads to reduction of competitiveness. Results Here, we present a first alternative reproductive sterility system for medfly based on transgenic embryonic lethality. This system is dep...

  14. Wing Morphometry and Acoustic Signals in Sterile and Wild Males: Implications for Mating Success in Ceratitis capitata

    OpenAIRE

    João Maria Gomes Alencar de Souza; Paulo Augusto Lima-Filho; Wagner Franco Molina; Lúcia Maria de Almeida; Milson Bezerra de Gouveia; Francisco Pepino de Macêdo; Raul Alberto Laumann; Beatriz Aguiar Jordão Paranhos

    2015-01-01

    The sterile insect technique (SIT) is widely utilized in the biological control of fruit flies of the family Tephritidae, particularly against the Mediterranean fruit fly. This study investigated the interaction between mating success and morphometric variation in the wings and the production of acoustic signals among three male groups of Ceratitis capitata (Wiedemann): (1) wild males, (2) irradiated with Co-60 (steriles), and (3) irradiated (steriles) and treated with ginger oil. The canonic...

  15. New methodology for determining the electronic thermal conductivity of metals via direct non-equilibrium ab initio molecular dynamics

    OpenAIRE

    Yue, Sheng-Ying; Zhang, Xiaoliang; Stackhouse, Stephen; Qin, Guangzhao; Di Napoli, Edoardo; Hu, Ming

    2016-01-01

    Many physical properties of metals can be understood in terms of the free electron model, as proven by the Wiedemann-Franz law. According to this model, electronic thermal conductivity ($\\kappa_{el}$) can be inferred from the Boltzmann transport equation (BTE). However, the BTE does not perform well for some complex metals, such as Cu. Moreover, the BTE cannot clearly describe the origin of the thermal energy carried by electrons or how this energy is transported in metals. The charge distrib...

  16. Evaluation of the Influence of the Antibiotic Ciprofloxacin in the Development of an Old World Screwworm Fly, Chrysomya putoria

    OpenAIRE

    Ferraz, Adriana C. P.; Dallavecchia, Daniele L.; da Silva, Débora Cardoso; de Carvalho, Rafaela Pereira; Filho, Renato Geraldo da Silva; Valéria M. Aguiar-Coelho

    2014-01-01

    Chrysomya putoria (Wiedemann) (Diptera: Calliphoridae), an Old World screwworm fly, is a species with potential for maggot therapy practice and has been described in myiasis and forensic entomology studies. The objective of the present study was to assess the action of different ciprofloxacin concentrations on the growth and development of C. putoria. First instar maggots of the third generation were raised on 60 g of chicken gizzard homogenate in 65% agar diet and received ciprofloxacin chlo...

  17. Sinonasal inhalation of tobramycin vibrating aerosol in cystic fibrosis patients with upper airway Pseudomonas aeruginosa colonization: results of a randomized, double-blind, placebo-controlled pilot study

    OpenAIRE

    Mainz JG; Schädlich K; Schien C; Michl R; Schelhorn-Neise P; Koitschev A; Koitschev C; Keller PM; Riethmüller J; Wiedemann B; Beck JF

    2014-01-01

    Jochen G Mainz,1 Katja Schädlich,1 Claudia Schien,1 Ruth Michl,1 Petra Schelhorn-Neise,2 Assen Koitschev,3 Christiane Koitschev,4 Peter M Keller,5 Joachim Riethmüller,6 Baerbel Wiedemann,7 James F Beck1 1Cystic Fibrosis Centre, Department of Pediatrics, Jena University Hospital, Jena, Germany; 2Otorhinolaryngology Department, Jena University Hospital, Jena, Germany; 3Otorhinolaryngology Department, Klinikum Stuttgart, Germany; 4Otorhinolaryngology Department, University Hosp...

  18. New fossil bee flies (Diptera : Bombylioidea) in the Lowermost Eocene amber of the Paris Basin

    OpenAIRE

    A. Nel; Ploëg, G. de

    2004-01-01

    A new genus and two new species of bee flies are described from the Lowermost Eocene amber of the Paris basin: Paradolichomyia eocenica n. gen, n. sp. (Bombyliidae: Toxophorinae) and Proplatypygus matilei n. sp. (Mythicomyiidae). Paradolichomyia eocenica n. gen, n. sp. represents the oldest fossil record of Bombyliidae. It is closely related to the two modern genera Dolichomyia WIEDEMANN 1830 and Zaclava HULL 1973 (Toxophorinae: Systropodini). This discovery suggests that the present Gondwana...

  19. The use of kaolin to control Ceratitis capitata in organic citrus groves.

    OpenAIRE

    LO VERDE, G; Caleca, V; LO VERDE, 
V

    2011-01-01

    The Mediterranean fruit fly, Ceratitis capitata (Wiedemann) (Diptera Tephritidae), is the key pest in some organically managed citrus orchards in Sicily. The effectiveness of processed kaolin (Surround WP) for control of C. capitata damage was tested in field trials carried out in 2003-2004 on two early ripening citrus species: satsuma (Citrus unshiu Markow.) and clementine (Citrus clementina Hort. ex Tan.). Although the number of males captured in trimedlure baited traps was high in both yea...

  20. Repellent Properties of δ-Octalactone Against the Tsetse Fly, Glossina morsitans Morsitans

    OpenAIRE

    Mwangi, Martin T.; Gikonyo, Nicholas K; Isaiah O Ndiege

    2008-01-01

    δ-octalactone, produced by several Bovidae, has been suggested as a potential repellant of tsetse fly attack. Racemic δ-octalactone was synthesized via an abbreviated route. The product was assayed against 3-day old starved teneral female tsetse flies, Glossina morsitans morsitans Wiedemann (Diptera: Glossinidae), in a choice wind tunnel and found to be a potent tsetse repellent at doses ≥0.05 mg in 200 µl of paraffin oil (0.05 >p >0.01).

  1. Accelerating Iterative SpMV for Discrete Logarithm Problem Using GPUs

    OpenAIRE

    Jeljeli, Hamza

    2012-01-01

    International audience In the context of cryptanalysis, computing discrete logarithms in large cyclic groups using index-calculus-based methods, such as the number field sieve or the function field sieve, requires solving large sparse systems of linear equations modulo the group order. Most of the fast algorithms used to solve such systems --- e.g., the conjugate gradient or the Lanczos and Wiedemann algorithms --- iterate a product of the corresponding sparse matrix with a vector (SpMV). ...

  2. Biorational insecticides for control of mosquitoes and black flies in Sinaloa

    OpenAIRE

    Cipriano García Gutiérrez; Rosa Luz Gómez Peraza; Claudia E. López Aguilar; Arturo León Váldez

    2012-01-01

    In Sinaloa Mexico the presence of mosquitoes is a important health problem, and each spring-summer season appear several species which include: Aedes aegypti (Linneus), Anopheles albimanus (Wiedemann), Culex quinquefasciatus (Say) and black flies of the Simulidae family. The control of larvae and adults of these insects are usually performed with chemical insecticides, so the use of biorational insecticides for control of these insects is novel, due to that have low environment impact. The ob...

  3. Lethal and sublethal toxicity of Fipronil and Imidacloprid on Psyttalia concolor (Hymenoptera: Braconidae).

    OpenAIRE

    Adan del Rio, Angeles; Viñuela Sandoval, Elisa; Bengochea Budia, Paloma; Budia Marigil, Maria Flor; Estal Padillo, Pedro Del; Medina Velez, Maria Pilar; Aguado Cortijo, Pedro Luis

    2011-01-01

    Psyttalia concolor (Szèpligeti) (Hymenoptera: Braconidae) is a koinobiont endoparasitoid of several species of tephritid (Diptera) larvae, such as Bactrocera oleae (Gmelin) and Ceratitis capitata (Wiedemann). Here, we report on the effects of imidacloprid and fipronil on P. concolor females, when different routes of exposure were evaluated: residual contact (cover and bait sprays) and via treatment of host species. Moreover, the persistence of the bait formulated compound also was studied. Fo...

  4. Biological Control of Ceratitis capitata (Diptera: Tephritidae) in Argentina: Releases of Diachasmimorpha longicaudata (Hymenoptera: Braconidae) in Fruit-Producing Semi-Arid Areas of San Juan

    OpenAIRE

    Lorena Suarez; Fernando Murua; Natalia Lara; Jorge Escobar; Gustavo Taret; José Luis Rubio; Guido Van Nieuwenhove; Laura Bezdjian; Pablo Schliserman; Sergio Marcelo Ovruski

    2014-01-01

    The Mediterranean fruit fly (Medfly), Ceratitis capitata (Wiedemann) is one of the major pests of fruit crops in Argentina and it is a phytosanitary barrier to the export of fresh fruits. In the Province of San Juan, located in the central-eastern region of Argentina known as Cuyo, control strategies against Medfly in fruit-producing irrigated-valleys have been implemented by the National Fruit Fly Control and Eradication Program (ProCEM) jointly with the provincial gov...

  5. Distribution and Abundance of Necrophagous Flies (Diptera: Calliphoridae and Sarcophagidae) in Maranhão, Northeastern Brazil

    OpenAIRE

    Pereira de Sousa, José Roberto; Carvalho-Filho, Fernando da Silva; Esposito, Maria Cristina

    2015-01-01

    This study aimed at surveying the local calliphorid and sarcophagid species in Maranhão State (Brazil) to determine their distribution and abundance, as well as the distribution of exotic Chrysomya species. In total, 18,128 calliphorid specimens were collected, distributed in 7 genera and 14 species. The species Hemilucilia semidiaphana (Rondani, 1850) and Paralucilia paraensis (Mello, 1969) were new state records. Chrysomya albiceps (Wiedemann, 1819) and Cochliomyia macellaria (F., 1775) wer...

  6. Luminescence basic concepts, applications and instrumentation

    CERN Document Server

    Virk, Hardev Singh

    2014-01-01

    The word luminescence was first used by a German physicist, Eilhardt Wiedemann, in 1888. He also classified luminescence into six kinds according to the method of excitation. No better basis of classification is available today. He recognized photoluminescence, thermoluminescence, electroluminescence, crystalloluminescence, triboluminescence, and chemiluminescence. The designations are obvious, characterized by the prefix. This Volume consists of 9 Chapters, including 8 Review Papers and one Case Study. The first two papers are based on OLEDs. Organic light emitting diodes (OLEDs) have been th

  7. Exact Sparse Matrix-Vector Multiplication on GPU's and Multicore Architectures

    CERN Document Server

    Boyer, Brice; Giorgi, Pascal

    2010-01-01

    We propose different implementations of the sparse matrix--dense vector multiplication (\\spmv{}) for finite fields and rings $\\Zb/m\\Zb$. We take advantage of graphic card processors (GPU) and multi-core architectures. Our aim is to improve the speed of \\spmv{} in the \\linbox library, and henceforth the speed of its black box algorithms. Besides, we use this and a new parallelization of the sigma-basis algorithm in a parallel block Wiedemann rank implementation over finite fields.

  8. Comparative radiosensitivity of Medfly cells and embryos.

    OpenAIRE

    Cavalloro, R.; Muñiz, M; Pozzi, G

    1984-01-01

    This research is dealing with the effect of 6O Co gamma radiation on cultured "In vitro" cells and on embryos at different developmental stages, of Ceratitis capitata Wiedemann. The parameters ana1yzed for both the cells and the embryos were growrh, survival and mortality rates. The immediate and late effects of irradiation were also studied at the level of egg hatching, larval life cycle, emergence of adults and their fertility. A particular result that became evident in the cormparison of t...

  9. Genetic elimination of field-cage populations of Mediterranean fruit flies

    OpenAIRE

    Leftwich, P. T.; Koukidou, M.; Rempoulakis, P.; Gong, H.-F.; Zacharopoulou, A.; Fu, G.; Chapman, T; Economopoulos, A.; Vontas, J.; Alphey, L

    2014-01-01

    The Mediterranean fruit fly (medfly, Ceratitis capitata Wiedemann) is a pest of over 300 fruits, vegetables and nuts. The sterile insect technique (SIT) is a control measure used to reduce the reproductive potential of populations through the mass release of sterilized male insects that mate with wild females. However, SIT flies can display poor field performance, due to the effects of mass-rearing and of the irradiation process used for sterilization. The development of female-lethal RIDL (r...

  10. Insects associated with exposed decomposing bodies in the Colombian Andean Coffee Region

    Directory of Open Access Journals (Sweden)

    Diana Grisales

    2010-01-01

    Full Text Available In Colombia, mainly classic forensic medicine methods were used to clarify crimes until 2004. However, other disciplines, including forensic entomology, started to be considered only after the New Accusatory System introduction in Bogotá and the Coffee Region in 2005. In order to provide tools for obtaining evidentiary material elements in judicial trials, it is presented here the succession of insects throughout the decomposition process of an exposed carcass of Sus scrofa Linnaeus 1758 (Suidae and the Occurrence Matrix of colonizing species. This process was evaluated under ambient conditions in the Andean rural area of the city of Pereira, in the Mundo Nuevo district, located in a pre-montane Wet Forest area, from October to November 2006. A sampling period of 27 days and 3198 individuals were collected. We found these colonizing species in the following stages of decomposition: Lucilia eximia (Wiedemann, 1819 fresh; Hemilucilia semidiaphana (Rondani, 1850, Oxelytrum discicolle (Brullé, 1840, and Cochliomyia macellaria (Fabricius 1775 bloated; Chrysomya albiceps (Wiedemann 1819, Compsomyiops verena (Walker, 1849, Ophyra aenescens (Wiedemann, 1830 and Musca domestica Linnaeus, 1758 active; Fannia sp. advanced and Stearibia nigriceps (Meigen, 1826 remains. This study provides support tools to define the Post Mortem Interval that may be used by experts from government institutions and laboratories officially accredited.

  11. Relações interespecíficas entre parasitoides nativos de moscas-das-frutas e o braconídeo exótico Diachasmimorpha longicaudata em frutos de 'umbu-cajá' Interespecific relations between native parasitoids of fruit flies and exotic braconid Diachasmimorpha longicaudata in fruits of 'umbu-cajá'

    Directory of Open Access Journals (Sweden)

    Zuzinaide Vidal Bomfim

    2010-02-01

    Full Text Available Espécies de vespas parasitoides (Hymenoptera: Braconidae são importantes agentes de controle biológico de moscas-das-frutas (Diptera: Tephritidae. Este trabalho teve por objetivo conhecer os efeitos da liberação e as relações de competitividade interespecífica do parasitoide exótico Diachasmimorpha longicaudata Ashmead sobre o complexo de parasitoides nativos de moscas-das-frutas associado a frutos de 'umbu-cajá' (Spondias spp. na região do Recôncavo Baiano. Entre os meses de abril e julho de 2006, 8.955 frutos (192,93kg foram coletados antes e após (24 e 48 horas a liberação de 9.600 fêmeas de D. longicaudata em campo. Obteve-se um total de 8.724 pupários de Tephritidae, dos quais emergiram 3.963 adultos de Anastrepha obliqua (Macquart e 1.115 parasitoides. A maior frequência relativa foi de Doryctobracon areolatus (Szépligeti, seguida por Asobara Anastrephae (Muesebeck e Utetes Anastrephae (Viereck. Após 24 e 48 horas da liberação do parasitoide exótico D. longicaudata em campo, constatou-se que o índice de parasitismo total aumentou de 15,86 para 20,4 e 45,19%, respectivamente. Assim, observou-se que a liberação da espécie exótica D. longicaudata não apresenta efeitos negativos na ocorrência dos parasitoides nativos e contribui para complementar o controle biológico natural de A. obliqua em frutos de 'umbu-cajá', nas condições deste estudo.Wasps parasitoid species (Hymenoptera: Braconidae are fruit flies (Diptera: Tephritidae biological control important agents. This study aimed to know the effects of the release and interspecific competitive relationships of the exotic parasitoid Diachasmimorpha longicaudata Ashmead (Hymenoptera: Braconidae on the native parasitoid complex of fruit flies in Spondias spp. in the region of Recôncavo Baiano. From April to July of 2006, 8.955 fruits (192.93kg were collected before and after (24 and 48 hours release of 9.600 females of D. longicaudata. Exactly 8.724 Tephritidae

  12. Ocorrência de moscas-das-frutas (Diptera: Tephritidae em mangueiras (Mangifera indica L. em Boa Vista, Roraima = The occurrence of fruit fly (Diptera: Tephritidae in mango (Mangifera indica L. in Boa Vista, Roraima

    Directory of Open Access Journals (Sweden)

    Adriana Bezerra Lima

    2012-08-01

    Full Text Available Um estudo foi conduzido no período de junho de 2007 a janeiro de 2008, em pomares comerciais de manga das variedades: Tommy Atkins, Haden e Palmer sendo 3 ha de cada cultivar, localizado na região do Bom Intento no Município de Boa Vista. Os espécimes de moscas-das-frutas foram coletados, por meio de armadilhas, confeccionadas com garrafas pet, que foram penduradas na copa das árvores a 1,60 m de altura. Como atrativo alimentar foi utilizado 200 mL de suco de maracujá a 30%. Foram utilizadas nove armadilhas, sendo uma armadilha por hectare. Semanalmente as armadilhas eram examinadas, ocasião em que se substituía o atrativo e os insetos capturados retirados e colocados em frascos de vidro devidamente etiquetados e transportados ao Laboratório de Entomologia do Centro de Ciências Agrárias da Universidade Federal de Roraima. As identificações dos espécimes foram feitas no Instituto Nacional de Pesquisa da Amazônia - INPA. No período de oito meses foram coletados 24 espécimes adultos do gênero Anastrepha (nove fêmeas e 15 machos. Quatro espécies foram identificadas: A. serpentina, A. striata, A. obliqua e A. turpinae. A maior frequência foi A. serpentina (44,44%, seguida de A. striata e A. obliqua ambas com 22,22% e A. turpinae com 11,11%. Os meses de maior ocorrência de Anastrepha spp. foram junho, julho e agosto. Este é o primeiro registro da espécie Anastrepha turpinae Stone, 1942, em Roraima. The study was done during th period of June 2007 to January of 2008, in commercial mango orchards having: 3 ha of cv. Tommy Atkins, 3 ha of cv. Haden. and 3 ha of cv. Palmer, located at Bom Intento in the municipal district of Boa Vista - RR. The specimens of fruit flies were collected, by trapping, made with transparent bottles pet, which were hung in the cup of the trees at 1.60 m of height. 200 mL of passion fruit juice (30% was used as an attractant feed; 9 traps were used, being one trap for hectare. Weekly The traps were

  13. Advances and perspectives in the mass rearing of fruit fly parasitoids in Mexico

    International Nuclear Information System (INIS)

    Biological control by augmentation is applied in Mexico as part of an integrated pest management program against native fruit flies of the genus Anastrepha Schiner. The exotic parasitoid Diachasmimorpha longicaudata has been the most important species used within this context. A program for the mass rearing of 50 million parasitized pupa per week has been established in southeast Mexico, and these are released into the field according to a yearly national plan based on industry requirements. In order to reduce costs and optimize procedures, important advances have been made in the technology for mass production, including an increase in the weight of host larvae (24 mg), changes in the management of host exposition, improvements in the management of environmental conditions, suitability in time and motions are the main areas addressed. Furthermore, a quality control program is routinely applied, and the key parameters under constant evaluation are: 1) weight and volume of host larvae, 2) host mortality after exposure, 3) weight and volume of pupae, and 4) percent parasitoid viability and percent emergence. Good performance in these parameters produces adults with adequate longevity and fecundity, high flight ability and good searching behavior. The introduced egg parasitoid Fopius arisanus and the native pupal parasitoid Coptera hawardi are being evaluated for use in the future as a complement to releases into the field of D. longicaudata. Manipulating host size and exposition time, the use of starting diet and suppressing host development by irradiation, have permitted the effective use of Anastrepha eggs as hosts for the rearing of F. arisanus. Further achievements in the mass rearing of C. haywardi (e.g., the suppression of unparasitized hosts after irradiation), could give us the opportunity to employ new options to reinforce the augmentative biological control of Anastrepha fruit flies in Mexico. (author)

  14. Advances and perspectives in the mass rearing of fruit fly parasitoids in Mexico

    Energy Technology Data Exchange (ETDEWEB)

    Cancino, Jorge; Montoya, Pablo [Secretaria de Agricultura, Ganaderia, Desarrollo Rural, Pesca y Alimentacion (DGSV/SENASICA/SAGARPA), Chiapas (Mexico). Servicio Nacional de Sanidad, Inocuidad y Calidad Agroalimentaria. Programa Moscamed-Moscafrut

    2006-07-01

    Biological control by augmentation is applied in Mexico as part of an integrated pest management program against native fruit flies of the genus Anastrepha Schiner. The exotic parasitoid Diachasmimorpha longicaudata has been the most important species used within this context. A program for the mass rearing of 50 million parasitized pupa per week has been established in southeast Mexico, and these are released into the field according to a yearly national plan based on industry requirements. In order to reduce costs and optimize procedures, important advances have been made in the technology for mass production, including an increase in the weight of host larvae (24 mg), changes in the management of host exposition, improvements in the management of environmental conditions, suitability in time and motions are the main areas addressed. Furthermore, a quality control program is routinely applied, and the key parameters under constant evaluation are: 1) weight and volume of host larvae, 2) host mortality after exposure, 3) weight and volume of pupae, and 4) percent parasitoid viability and percent emergence. Good performance in these parameters produces adults with adequate longevity and fecundity, high flight ability and good searching behavior. The introduced egg parasitoid Fopius arisanus and the native pupal parasitoid Coptera hawardi are being evaluated for use in the future as a complement to releases into the field of D. longicaudata. Manipulating host size and exposition time, the use of starting diet and suppressing host development by irradiation, have permitted the effective use of Anastrepha eggs as hosts for the rearing of F. arisanus. Further achievements in the mass rearing of C. haywardi (e.g., the suppression of unparasitized hosts after irradiation), could give us the opportunity to employ new options to reinforce the augmentative biological control of Anastrepha fruit flies in Mexico. (author)

  15. Evaluation of female fruit fly attractants in Honduras 2001-2004

    International Nuclear Information System (INIS)

    As part of an international effort coordinated by the International Atomic Energy Agency, a study to evaluate general and relative (percentage of females) efficiency of fruit fly attractants was conducted in four locations in Honduras from 2001 to 2004. Combinations of the food based dry synthetic attractants Ammonium Acetate (AA), Ammonium Bicarbonate (AB), Putrescine (PT) and Trimethylamine (TMA) were compared against NuLure and Torula Yeast, the standard protein lures currently used in surveillance Programmes. In the last year, pulp of hog plum, Spondias mombin was included in the treatments. Attractants were deployed using plastic McPhail-type traps that were checked twice weekly. The combination of AA+PT+TMA was the most efficient for the medfly, Ceratitis capitata, catching 0.74 flies/trap/day (FTP), whereas Torula Yeast caught 0.36 FTP. Both treatments captured over 90% females. For Anastrepha species, no combination of synthetic lures reached this efficiency. AA+PT and variations of it (smaller amounts of ammonia or putrescine released) gave the best results with Anastrepha, in some cases being statistically equal to the standard protein baits. In general, the best combination of AA+PT for each year caught an average of 0.29 FTP for A. obliqua and 0.23 for A. ludens, whereas the standard protein baits caught 0.39 and 0.42 FTP, respectively. Their relative efficiency was 77% females. Hog plum pulp gave good results in attracting Anastrepha flies, especially A. obliqua, performing equally or better than the standard protein baits. However, it only attracts around 60% females. (author)

  16. Dispersal and longevity of mass-released, sterilized Mexican fruit flies (Diptera: Tephritidae)

    International Nuclear Information System (INIS)

    Trap-back experiments using McPhail traps were conducted to study dispersal and longevity of mass-released, sterile Mexican fruit flies, Anastrepha ludens (Loew). The flies were released at 3 ecologically different sites in northern Mexico. Some flies were recaptured up to 9 km from the release point. However, standard distance was estimated using a regression model that indicated 240 m was the typical dispersal distance. The life expectancy of the released flies from the time of release varied from 5 to 10 d. Greatest longevity, up to 22 wk, occurred during the winter months

  17. Gamma irradiation as a quarantine treatment for carambolas infested with Caribbean fruit flies

    International Nuclear Information System (INIS)

    Carambolas infested with the Caribbean fruit fly Anastrepha suspensa (Loew), eggs and larvae were exposed to ionizing gamma radiation. Probit 9 was estimated to be 22.95 Gy (95% fiducial limits 16.68 Gy - 49.73 Gy). Over 100,000 immature A. suspensa infesting carambolas were treated at 50 Gy with no adult survivors. This dose did not cause any observable damage to the fruit. The 50 Gy dose satisfies quarantine requirements for treatment of fruits exposed from fruit fly infested areas. (author)

  18. Efficacy of sterile releases of Caribbean fruit flies (Diptera: Tephritidae) against wild populations in urban hosts adjacent to commercial citrus

    International Nuclear Information System (INIS)

    The sterile male release technique was tested either as an alternative to fumigation or as a supplement to a fly-free management program in 1988 for control of the Caribbean fruit fly, Anastrepha suspensa (Loew). The test area consisted of 19-28 sq. kilometers with a corresponding non-sterile fly release area. Releases began in January, 1988, and continued generally through June 1990. Efficacy was measured by determining the presence or absence of flies using an aggressive trapping program. Suppression of wild A. suspensa in the first year could not be measured easily but, by the end of the third year, measurable reduction was evident

  19. Widespread distribution of the piggyBac transposon in various bactrocera species

    International Nuclear Information System (INIS)

    Full text: The piggyBac transposable element from the Lepidopteran species Trichoplusia ni is currently the most widely used vector for insect transgenesis. Consequently, the presence of piggyBac-like sequences has been investigated, by PCR and Southern analysis, in different species of target genera such as Ceratitis, Bactrocera and Anastrepha, along with Tirhitromina and Rhagoletis. PiggyBac-like sequences were detected in several Bactrocera species. The evolution of the piggyBac-like sequences is discussed with respect to the phylogenies of the hosts. (author)

  20. Desarrollo de herramientas moleculares para la evaluación de la calidad genética y productividad en la cría artificial de Diachasmimorpha longicaudata, agente de control biológico de moscas plaga de los frutos

    OpenAIRE

    Mannino, María Constanza

    2016-01-01

    Diachasmimorpha longicaudata Ashmead (Hymenoptera: Braconidae) es un endoparasitoide solitario de estadios larvales de moscas de la fruta perteneciente a la familia Tephritidae. Es criado a nivel masivo en bioplantas y utilizado en diversas partes del mundo para las estrategias de control biológico (CB) principalmente de dípteros de importancia económica de los géneros Ceratitis, Anastrepha y Bactrocera. Actualmente, se estudia su implementación en nuestro país para el control de Ceratitis ca...

  1. Mating experience and juvenile hormone enhance sexual signaling and mating in male Caribbean fruit flies

    OpenAIRE

    Teal, P. E. A.; Gomez-Simuta, Y.; Proveaux, A. T.

    2000-01-01

    Young mated male Caribbean fruit flies [Anastrepha suspensa (Loew)] have greater sexual prowess than their virgin counterparts. After mating for the first time, 6- to 7-day-old males released twice as much sex pheromone and acquired another mate in less than half the time required by virgin males of the same age. Mass spectroscopic analysis of extracts of hemolymph from mated and virgin 7-day-old males resulted in identification of juvenile hormone III bisepoxide and juvenile hormone III in a...

  2. Chilled packing systems for fruit flies (Diptera: Tephritidae) in the sterile insect technique

    International Nuclear Information System (INIS)

    We evaluated three packing systems (PARC boxes, 'GT' screen towers and 'MX' screen towers) for the emergence and sexual maturation of sterile fruit flies, at three adult fl y densities (1, 1.2 and 1.3 fly/cm 2) and three food types. At the lowest density, results showed no significant differences in the longevity and flight ability of adult Anastrepha ludens (Loew) and Anastrepha obliqua Macquart among the three packing systems. Higher densities resulted in a decrease in these parameters. In the evaluation of the three food types, no significant differences were found either on longevity or flight ability of A. ludens. However, the greatest longevity for both sexes A. obliqua was obtained with commercial powdered Mb and the mix of sugar, protein and corn starch on paper (SPCP) food types. The highest value for flight ability in A. obliqua males was obtained with powdered Mb and SPCP food types, and for females with Mb powdered food. Our data indicated that GT and MX screen tower packing systems are an alternative to the PARC boxes, since they were suitable for adult fl y sexual maturation without any harm to their longevity or flight ability. The tested foods were equivalent in both fruit fl y species, with the exception of the agar type for A. obliqua, which yielded the lowest biological parameters evaluated. Our results contribute to the application of new methods for the packing and release of sterile flies in large-scale programs. (author)

  3. Survey of ear flies (Diptera, Ulidiidae in maize (Zea mays L. and a new record of Euxesta mazorca Steyskal in Brazil

    Directory of Open Access Journals (Sweden)

    Ivan Cruz

    2011-03-01

    Full Text Available Survey of ear flies (Diptera, Ulidiidae in maize (Zea mays L. and a new record of Euxesta mazorca Steyskalin Brazil. Species of Euxesta (Diptera, Ulidiidae, known as silk flies or ear flies, are becoming increasingly important as maize insect pests in South America, although very little is known about them in Brazil. The larvae of some species of this genus initially damage female reproductive tissues, and then the developing kernels on the ear. As a result of feeding, fermentation and associated odors cause complete loss of the grain because it is no longer fit for human or livestock consumption. The main objective of this work was to evaluate the incidence of Euxesta spp. in Brazilian maize fields and to determine the most prevalent species using two different hydrolyzed protein foods attractants, BioAnastrepha® (hydrolyzed maize protein and Torula, placed inside McPhail traps. The two species identified were E. eluta Loew and E. mazorca Steyskal, the latter being a new record from Brazil. Between the two species, E. eluta was the more abundant in maize fields. Both attractants were efficient in capturing the two species. However, BioAnastrepha® captured significantly more insects than Torula.

  4. Is sexually transmitted fungal infection evidence for size-related mating success in Neotropical guava fruit flies?

    Directory of Open Access Journals (Sweden)

    Ingemar Hedström

    1998-12-01

    Full Text Available The influence of wing length on mate preference was examined in natural populations of the Neotropical guava fruit fly, Anastrepha striata Schiner, at two locations in Costa Rica. Based on evidence that the fungi are transmitted during mating, site-specific infection by Laboulbeniales fungi on the body surface was used to assess mating history. Males and females that carried fungi on the legs and/or on the ventral part of the thorax (males, and on both sides of the notum and/or the dorsal base of the abdomen (females, had significantly longer wings than males and females without fungi. This suggests that individuals of both sexes with longer wings (i.e. larger individuals enjoy higher mating success. Fungus infection is more frequent in the wet than in the seasonally dry forest, possibly because hosts are available year-round in the wet forest.Se estudió poblaciones naturales de la mosca frutera Anastrepha striata Schiner, en dos lugares de Costa Rica. Los hongos Laboulbeniales se transmiten en éstas durante la cópula. Hembras y machos con hongos en las patas y/o parte ventral del tórax (machos, y en ambos lados del noto y/o base dorsal del abdomen (hembras, tenían alas significativamente más largas que los individuos no parasitados. Esto sugiere que los individuos más grandes logran más apareamientos.

  5. Chilled packing systems for fruit flies (Diptera: Tephritidae) in the sterile insect technique

    Energy Technology Data Exchange (ETDEWEB)

    Hernandez, Emilio; Escobar, Arseny; Bravo, Bigail; Montoya, Pablo [Instituto Interamericano de Cooperacion para la Agricultura (IICA), Chiapas (Mexico); Secretaria de Agricultura, Ganaderia, Desarrollo Rural, Pesca y Alimentacion (SAGARPA), Mexico, D.F. (Mexico). Programa Moscafrut

    2010-07-15

    We evaluated three packing systems (PARC boxes, 'GT' screen towers and 'MX' screen towers) for the emergence and sexual maturation of sterile fruit flies, at three adult fl y densities (1, 1.2 and 1.3 fly/cm 2) and three food types. At the lowest density, results showed no significant differences in the longevity and flight ability of adult Anastrepha ludens (Loew) and Anastrepha obliqua Macquart among the three packing systems. Higher densities resulted in a decrease in these parameters. In the evaluation of the three food types, no significant differences were found either on longevity or flight ability of A. ludens. However, the greatest longevity for both sexes A. obliqua was obtained with commercial powdered Mb and the mix of sugar, protein and corn starch on paper (SPCP) food types. The highest value for flight ability in A. obliqua males was obtained with powdered Mb and SPCP food types, and for females with Mb powdered food. Our data indicated that GT and MX screen tower packing systems are an alternative to the PARC boxes, since they were suitable for adult fl y sexual maturation without any harm to their longevity or flight ability. The tested foods were equivalent in both fruit fl y species, with the exception of the agar type for A. obliqua, which yielded the lowest biological parameters evaluated. Our results contribute to the application of new methods for the packing and release of sterile flies in large-scale programs. (author)

  6. Rare Disease Patient Registry & Natural History Study - Coordination of Rare Diseases at Sanford

    Science.gov (United States)

    2016-09-01

    Rare Disorders; Undiagnosed Disorders; Disorders of Unknown Prevalence; Cornelia De Lange Syndrome; Prenatal Benign Hypophosphatasia; Perinatal Lethal Hypophosphatasia; Odontohypophosphatasia; Adult Hypophosphatasia; Childhood-onset Hypophosphatasia; Infantile Hypophosphatasia; Hypophosphatasia; Kabuki Syndrome; Bohring-Opitz Syndrome; Narcolepsy Without Cataplexy; Narcolepsy-cataplexy; Hypersomnolence Disorder; Idiopathic Hypersomnia Without Long Sleep Time; Idiopathic Hypersomnia With Long Sleep Time; Idiopathic Hypersomnia; Kleine-Levin Syndrome; Kawasaki Disease; Leiomyosarcoma; Leiomyosarcoma of the Corpus Uteri; Leiomyosarcoma of the Cervix Uteri; Leiomyosarcoma of Small Intestine; Acquired Myasthenia Gravis; Addison Disease; Hyperacusis (Hyperacousis); Juvenile Myasthenia Gravis; Transient Neonatal Myasthenia Gravis; Williams Syndrome; Lyme Disease; Myasthenia Gravis; Marinesco Sjogren Syndrome(Marinesco-Sjogren Syndrome); Isolated Klippel-Feil Syndrome; Frasier Syndrome; Denys-Drash Syndrome; Beckwith-Wiedemann Syndrome; Emanuel Syndrome; Isolated Aniridia; Beckwith-Wiedemann Syndrome Due to Paternal Uniparental Disomy of Chromosome 11; Beckwith-Wiedemann Syndrome Due to Imprinting Defect of 11p15; Beckwith-Wiedemann Syndrome Due to 11p15 Translocation/Inversion; Beckwith-Wiedemann Syndrome Due to 11p15 Microduplication; Beckwith-Wiedemann Syndrome Due to 11p15 Microdeletion; Axenfeld-Rieger Syndrome; Aniridia-intellectual Disability Syndrome; Aniridia - Renal Agenesis - Psychomotor Retardation; Aniridia - Ptosis - Intellectual Disability - Familial Obesity; Aniridia - Cerebellar Ataxia - Intellectual Disability; Aniridia - Absent Patella; Aniridia; Peters Anomaly - Cataract; Peters Anomaly; Potocki-Shaffer Syndrome; Silver-Russell Syndrome Due to Maternal Uniparental Disomy of Chromosome 11; Silver-Russell Syndrome Due to Imprinting Defect of 11p15; Silver-Russell Syndrome Due to 11p15 Microduplication; Syndromic Aniridia; WAGR Syndrome; Wolf

  7. THERMO-MECHANICAL MODELLING OF METAL STRUCTURES SUBJECTED TO HIGH ENERGY PARTICLE BEAM IMPACTS

    CERN Document Server

    Peroni, L; Dallocchio, A

    2011-01-01

    Particle accelerators [Wiedemann 1993] act as microscopes for such a complex research; these large machines accelerate charged elementary particles (electrons, protons or ionized atoms) to high kinetic energies. A high energy particle beam can be brought into collision against a fixed target or against another beam and from this encounter a multitude of short life sub-atomic particles is originated. The higher the energy of the colliding beams and the event rate, the wider the spectrum of the generable sub-atomic particles.

  8. A revision of the New World genus Lepidophora Westwood, 1835 (Diptera, Bombyliidae, Ecliminae) with a key to the species.

    Science.gov (United States)

    Rodrigues, Paula Fernanda Motta; Lamas, Carlos José Einicker

    2013-01-01

    The bombyliid genus Lepidophora has a distribution restricted to the New World. The genus is composed by eight species, which are revised and redescribed herein: five restricted to the Neotropical region (L. acroleuca Painter, 1930, L. culiciformis Walker, 1850, L. cuneata Painter, 1939, L. secutor Walker, 1857 and L. trypoxylona Hall, 1981), two restricted to the Nearctic region (L. lepidocera (Wiedemann, 1828) and L. lutea Painter, 1962) and one species occurring in Nearctic and Neotropical regions (L. vetusta Walker, 1857). The main characters of the external morphology of adults and male and female terminalia are illustrated. An key to species is presented. PMID:25243274

  9. Calcifying nested stromal-epithelial tumor (CNSET) of the liver: a newly recognized entity to be considered in the radiologist's differential diagnosis.

    Science.gov (United States)

    Schaffer, Lauren R; Shehata, Bahig M; Yin, Julie; Schemankewitz, Erwin; Alazraki, Adina

    2016-01-01

    Calcifying nested stromal-epithelial tumor (CNSET), an extremely rare tumor found in the liver, was first described in 2001 by Ishak et al. The characteristic imaging features include large size, well-circumscribed, enhancing mass with calcification. To our knowledge, since 2001, there have been 29 reported. Typically arising from the right hepatic lobe, it is primarily found in children and shows clear predilection for females. Emphasizing imaging, we report a 14-year-old female with Beckwith-Wiedemann syndrome who presented with CNSET. PMID:26589005

  10. Seven new species of Limnophora Robineau-Desvoidy (Diptera: Muscidae from Ecuador

    Directory of Open Access Journals (Sweden)

    João Manuel Fogaça

    2015-09-01

    Full Text Available ABSTRACTHere we describe seven new species of Limnophora from Ecuador: Limnophora bifasciatasp. nov. from Napo, Quito; Limnophora equatoriensissp. nov. from Zamora-Chinchipe, Zamora; Limnophora femurosetalissp. nov. from Zamora-Chinchipe, Zamora; Limnophora lamasisp. nov. from Zamora-Chinchipe, Zamora; Limnophora longivittatasp. nov. from Napo, Quito; Limnophora penaisp. nov. from Azuay, Cuenca and Limnophora polletisp. nov. from Napo, Quito. We provide an identification key for the ten recognized species of Limnophora from Ecuador, including L. marginata Stein, 1904, L. pica(Macquart, 1851 and L. saeva (Wiedemann, 1830. We also redescribed Limnophora marginata Stein, 1904, and designated designed lectotype male and paralectotypes males and females of the species.

  11. Major element composition of the lithospheric mantle under the North Atlantic craton

    DEFF Research Database (Denmark)

    Bizzarro, Martin; Stevenson, R.K.

    2003-01-01

    nature of the Sarfartoq mantle showing comparable degrees of depletion to other cratonic roots. Modal analyses indicate that the Sarfartoq mantle is not typified by the orthopyroxene enrichment observed in the Kaapvaal root, but shows more affinity with the Canadian Arctic (Somerset Island), Tanzania......, and East Greenland (Wiedemann Fjord) peridotites. The Sarfartoq peridotites have equilibrated at temperatures and pressures ranging from 660 to 1,280 °C and from 2.2 to 6.3 GPa, and define a relatively low mantle heat flow of 13.2 ± 1 mW/m. In addition, the lithospheric mantle underneath the Sarfartoq...

  12. Linear and quadratic in temperature resistivity from holography

    CERN Document Server

    Ge, Xian-Hui; Wu, Shang-Yu; Wu, Shao-Feng

    2016-01-01

    We present a new black hole solution in the Lifshitz spacetime with a hyperscaling violating factor. We analytically compute all of the DC thermoelectric conductivities in this theory. We find that both the linear-T and quadratic-T contributions to the resistivity can be realized, indicating that a more detailed comparison with experimental phenomenology can be performed in this scenario. At zero temperature, the Lorenz ratios are a constant, obeying the Wiedemann-Franz law, indications of a Fermi-liquid ground state.

  13. Targeted regulation of imprinted genes by synthetic zinc-finger transcription factors.

    Science.gov (United States)

    Jouvenot, Y; Ginjala, V; Zhang, L; Liu, P-Q; Oshimura, M; Feinberg, A P; Wolffe, A P; Ohlsson, Rolf; Gregory, P D

    2003-03-01

    Epigenetic control of transcription is essential for mammalian development and its deregulation causes human disease. For example, loss of proper imprinting control at the IGF2-H19 domain is a hallmark of cancer and Beckwith-Wiedemann syndrome, with no targeted therapeutic approaches available. To address this deficiency, we engineered zinc-finger transcription proteins (ZFPs) that specifically activate or repress the IGF2 and H19 genes in a domain-dependent manner. Importantly, we used these ZFPs successfully to reactivate the transcriptionally silent IGF2 and H19 alleles, thus overriding the natural mechanism of imprinting and validating an entirely novel avenue for 'transcription therapy' of human disease. PMID:12621455

  14. Gurami mozaikowy dyryguje Beethovenem. Oniryczny panfikcjonalizm Scen łóżkowych Adama Wiedemanna

    OpenAIRE

    Lemann, Natalia

    2012-01-01

    The paper discusses musicality of Sceny łóżkowe (Bedtime scenes) by Adam Wiedemann understood as the constructive and topical dominant of the book. The writer’s ‘dream diary’ (including a ‘testimonio’ notation of dreams from 1987 to 2000), simulating the poetics of a personal document, in fact draws the reader into multilevel intertextual games. The consequent amalgamation of high and pop culture and the poetics of collage or sampling organize the dreams records of Sceny łóżkow...

  15. Miíase por Lucilia eximia (Diptera: Calliphoridae em Didelphis albiventris (Mammalia: Didelphidae no Brasil Central

    Directory of Open Access Journals (Sweden)

    Edison Cansi

    2011-12-01

    Abstract. In May 2009 were collected 18 larvae of Lucilia eximia (Wiedemann, a fly responsible for primary and secondary myiasis in livestock and humans. The larvae were taken from the myiasis on anal and auricular regions of an opossum Didelphis albiventris (Lund, in Brasília Zoo, and later identified in the laboratory. After 15 days, 15 adults emerged from L. eximia. This is the first record of this blowfly causing a primary myiasis in a marsupial species in the Brasília Cerrado.

  16. Anomalous transport of the cuprate strange metal from holography

    CERN Document Server

    Ge, Xian-Hui; Wu, Shang-Yu; Wu, Shao-Feng

    2016-01-01

    We study the anomalous transport of the cuprate strange metals by exploring a new black hole solution in AdS spacetime with a hyperscaling violating factor via the gauge/gravity duality. We show that both the linear T-dependence resistivity and the quadratic T-dependence inverse Hall angle can be naturally achieved. Other anomalous temperature scaling of transport quantities of cuprates, such as 1) the Hall Lorenz ratio, 2) the Nernst coefficient and 3) the magnetoresistance can also be reproduced. In the zero temperature limit, the Lorenz ratio obeys the Wiedemann-Franz law, suggestive of a Fermi-liquid ground state.

  17. Nonlinear voltage dependence of the shot noise in mesoscopic degenerate conductors with strong electron-electron scattering

    OpenAIRE

    Mishchenko, E. G.

    2000-01-01

    It is shown that measurements of zero-frequency shot-noise can provide information on electron-electron interaction, because the strong interaction results in the nonlinear voltage dependence of the shot noise in metallic wires. This is due to the fact that the Wiedemann-Franz law is no longer valid in the case of considerable electron-electron interaction. The deviations from this law increase the noise power and make it dependent strongly on the ratio of electron-electron and electron-impur...

  18. Quantum thermal transport in stanene

    Science.gov (United States)

    Zhou, Hangbo; Cai, Yongqing; Zhang, Gang; Zhang, Yong-Wei

    2016-07-01

    By way of the nonequilibrium Green's function simulations and analytical expressions, the quantum thermal conductance of stanene is studied. We find that, due to the existence of Dirac fermion in stanene, the ratio of electron thermal conductance and electric conductance becomes a chemical-potential-dependent quantity, violating the Wiedemann-Franz law. This finding is applicable to any two-dimensional (2D) materials that possess massless Dirac fermions. In strong contrast to the negligible electronic contribution in graphene, surprisingly, the electrons and phonons in stanene carry a comparable heat current. The unusual behaviors in stanene widen our knowledge of quantum thermal transport in 2D materials.

  19. Interespecific competition between Peckia chrysostoma and Adiscochaeta ingens (Diptera: Sarcophagidae) larvae reared in laboratory

    OpenAIRE

    Marisa Vianna Ferraz

    1993-01-01

    Groups of 10 and 20 first instar larvae of Peckia chrysostoma (Wiedemann, 1830) were combined in a proteic source media with groups of the same number of first instar larvae of Adiscochaeta ingens (Walker, 1849) under the environmental conditions of Rio de Janeiro, RJ, Brasil. P. chrysostoma and A. ingens obtained average competitive potentials of 94.0 ± 2.0% and 31.0 ± 5.0% respectively. In the second experiment, larvae of P. chrysostoma were introduced approximately 15 hr after the introduc...

  20. Estudio de la actividad biocida de aceites procedentes de plantas aromáticas sobre Tetranychus urticae y Ceratitis capitata

    OpenAIRE

    Laborda, R.; Manzano, I.; Gamón, M.; Gavidia, Isabel; Pérez-Bermúdez, Pedro; Boluda Hernandez, Rafael

    2014-01-01

    Se ha estudiado la actividad biocida de aceites esenciales extraídos de plantas aromáticas como el romero (Rosmarinus officinalis L.) y la salvia (Salvia officinalis L.) sobre la araña roja (Tetranychus urticae Koch) y la mosca de la fruta (Ceratitis capitata Wiedemann). El aceite esencial de salvia a la concentración del 1% se mostró capaz de atraer adultos de C. capitata. La mayor actividad frente a la araña roja se observó por parte del aceite esencial de salvia, provocando, con gran rapid...

  1. Holography of the Dirac Fluid in Graphene with two currents

    CERN Document Server

    Seo, Yunseok; Kim, Philip; Sachdev, Subir; Sin, Sang-Jin

    2016-01-01

    Recent experiments have uncovered evidence of the strongly coupled nature of the graphene: the Wiedemann-Franz law is violated by up to a factor of 20 near the charge neutral point. We describe this strongly-coupled plasma by a holographic model in which there are two distinct conserved U(1) currents. We find that our analytic results for the transport coefficients for two current model have a significantly improved match to the density dependence of the experimental data than the models with only one current. We also discuss the origin of the two currents.

  2. Comparative morphology of the spermathecae of some species of Chrysomya Robineau-Desvoidy and Cochliomyia Townsend (Diptera, Calliphoridae

    Directory of Open Access Journals (Sweden)

    Érica Sevilha Harterreiten-Souza

    2012-03-01

    Full Text Available Comparative morphology of the spermathecae of some species of Chrysomya Robineau-Desvoidy and Cochliomyia Townsend (Diptera, Calliphoridae. Little is known about the morphology of the chitinized structures of the spermathecae of the Calliphoridae. In this work, the spermathecae of Chrysomya albiceps Wiedemann, 1819, C. megacephala Fabricius, 1794, Cochliomyia macellaria Fabricius, 1775 and C. hominivorax Coquerel, 1858 are described and illustrated. The occurrence in one species of four spermathecae, an atypical form for blow flies, was recorded for the first time. The analysis of these structures will allow a better understanding of this group as well as provide taxonomic characters for future phylogenetic studies.Morfologia comparada das espermatecas de espécies de Chrysomya Robineau-Desvoidy e Cochliomyia Townsend (Diptera, Calliphoridae. Pouco se conhece sobre a morfologia das estruturas quitinizadas das espermatecas de Calliphoridae. Nesse trabalho as espermatecas de Chrysomya albiceps Wiedemann, 1819, C. megacephala Fabricius, 1794, Cochliomyia macellaria Fabricius, 1775 e C. hominivorax Coquerel, 1858 são descritas e ilustradas. Foi registrada pela primeira vez a ocorrência em uma espécie com quatro espermatecas, uma forma atípica em califorídeos. A análise dessas estruturas possibilitará uma melhor compreensão do grupo e fornecerá caracteres taxonômicos para futuros estudos filogenéticos.

  3. Effects of the Antibiotics Gentamicin on the Postembryonic Development of Chrysomya putoria (Diptera: Calliphoridae)

    Science.gov (United States)

    Ferraz, Adriana C. P.; Dallavecchia, Daniele L.; Silva, Débora C.; Figueiredo, Adriana L.; Proença, Barbara; Silva-Filho, Renato G.; Aguiar, Valéria M.

    2014-01-01

    We evaluate the effects the antibiotic Gentamicin on the development of Chrysomya putoria (Wiedemann, 1818). Third-generation, first-instar larvae were reared in a climatic chamber on 60 g of homogenate + agar 65% and were treated with three concentrations of Gentamicin: 4.44 mg/ml, 13.33 mg/ml, and 66.66 mg/ml. The control consisted of distilled water. The relationships between mean body mass of mature larvae (measured after diet abandonment, in batches of five individuals), duration of larval and pupal stages, and overall duration of development were analyzed. The actual sex ratio was compared against the expected using the chi square. None of the parameters measured differed significantly among the four treatments, with one exception: when Gentamicin concentration was 13.33 mg/ml, larval viability differed significantly from the control. All larvae from all treatments were considered normal. We conclude that the antibiotic did not significantly alter the development of C. putoria (Wiedemann) (Diptera: Calliphoridae). PMID:25527588

  4. Transport coefficients of graphene: Interplay of impurity scattering, Coulomb interaction, and optical phonons

    Science.gov (United States)

    Xie, Hong-Yi; Foster, Matthew S.

    2016-05-01

    We study the electric and thermal transport of the Dirac carriers in monolayer graphene using the Boltzmann-equation approach. Motivated by recent thermopower measurements [F. Ghahari, H.-Y. Xie, T. Taniguchi, K. Watanabe, M. S. Foster, and P. Kim, Phys. Rev. Lett. 116, 136802 (2016), 10.1103/PhysRevLett.116.136802], we consider the effects of quenched disorder, Coulomb interactions, and electron-optical-phonon scattering. Via an unbiased numerical solution to the Boltzmann equation we calculate the electrical conductivity, thermopower, and electronic component of the thermal conductivity, and discuss the validity of Mott's formula and of the Wiedemann-Franz law. An analytical solution for the disorder-only case shows that screened Coulomb impurity scattering, although elastic, violates the Wiedemann-Franz law even at low temperature. For the combination of carrier-carrier Coulomb and short-ranged impurity scattering, we observe the crossover from the interaction-limited (hydrodynamic) regime to the disorder-limited (Fermi-liquid) regime. In the former, the thermopower and the thermal conductivity follow the results anticipated by the relativistic hydrodynamic theory. On the other hand, we find that optical phonons become non-negligible at relatively low temperatures and that the induced electron thermopower violates Mott's formula. Combining all of these scattering mechanisms, we obtain the thermopower that quantitatively coincides with the experimental data.

  5. Thermal diffusivity of X153CrMoV12 - a methodological study

    International Nuclear Information System (INIS)

    Full text: The main target of a recent research project in cooperation with Boehler Edelstahl GmbH and Co KG is to compare different methods for thermal diffusivity measurements of highly alloyed steels. For this reason, thermal diffusivity is on one hand directly measured via Laser Flash Analysis (LFA) and, on the other hand, indirectly calculated from electrical resistivity using the Wiedemann-Franz-Law. Therefore, electrical resistivity (in the solid and the liquid states) needs to be known and is within the frame of this investigation measured using a fast pulse-heating apparatus. However, material-dependent lattice contributions of yet unknown magnitude need to be accounted for. A relation between direct and indirect methods is sought after to improve measurements and simulations using the Wiedemann-Franz-Law. As a first step, a X153CrMoV12 steel of industrial relevance is investigated using both mentioned methods. The measured diffusivity results will be compared and presented within this study. The examination of other alloys is in preparation and will possibly help to quantify these lattice contributions for selected groups of alloys. (author)

  6. Augmentative biological control in the Mexican national fruit fly campaign

    International Nuclear Information System (INIS)

    Full text: Tephritid fruit flies are some of the most economically important species of insects worldwide. In Mexico, the native Anastrepha ludens, A. obliqua, A. serpentina and A. striata, are among the most important problems because of the great number of commercial fruits they attack. In an attempt to solve the Anastrepha fruit flies problems, the Mexican Government created the National Campaign against Fruit Flies in 1992. Using an area-wide approach and an integrated pest management framework, that included the use of environment-friendly strategies to suppress/eradicate fruit flies, the Mexican Campaign has integrated different technologies such as the application of specific toxic bait, the use of the Sterile Insect Technique (SIT), and the release of the endoparasitoid Diachasmimorpha longicaudata (Ashmead) (Hymenoptera: Braconidae), which attacks preferably third instar larvae of fruit flies. Since 1995, the Moscafrut mass-rearing facility has the capacity to produce an average of 50 millions of parasitised pupae per week, with 65-70% of parasitoid emergence using irradiated A. ludens larvae as host. The mass-rearing procedures of D. longicaudata have been fully described by Cancino. Parasitised pupae are sent via commercial flights to several states of the country (i.e. Michoacan, Sinaloa, Nayarit, Tamaulipas), according to a yearly national plan. This plan derives from industry requirements and/or availability of biological material. In the target zones, parasitoids are released in specific periods and specific areas where the environmental, biological and social conditions are considered as adequate. Packing and release procedures of parasitoids follow those that Montoya et al used. The releases are focused on Anastrepha spp. host trees located in marginal areas (i.e backyard orchards), with the objective to prevent the migration of fruit fly populations into commercial orchards. The impact of parasitoids on fruit fly populations is evaluated through

  7. Standardization of Ceratitis capitata Wied. (Diptera: Tephritidae) female trapping for use in sterile insect programmes. Catamarca, Argentina, 1995-1997

    International Nuclear Information System (INIS)

    The main objective of the study was to assess Ceratitis capitata Wied. (medfly) female trapping with new traps and attractants in varying ecological conditions as part of a co-ordinated international programme. Trials were carried out between 1995 and 1997, using seven types of traps baited with the various combination of sexual and food attractants. Different methods for insects retention were also tested. For these trials, protocols established by the International Atomic Energy Agency were followed. The Jackson Trap with Trimedlure plugs proved to be the most efficient for capture of medfly males, while International Pheromone's McPhail Trap was the most efficient for the capture of females, when used with a combination of all three new attractants (FA-3) consisting of ammonium acetate, putrescine, and trimethylamine plus the toxicant DDVP for insect retention. The new traps and attractants also captured flies belonging to genus Anastrepha (Diptera: Tephritidae). (author)

  8. Flutuação populacional de moscas-das-frutas (Diptera: Tephritidae associadas a variedades de manga no município de José de Freitas-Piauí Population dynamics of fruit flies (Diptera: Tephritidae associated to mango varieties in the city of Jose de Freitas - Piauí - Brazil

    Directory of Open Access Journals (Sweden)

    Sávio Silveira Feitosa

    2008-03-01

    Full Text Available O Piauí possui uma área considerável de manga, sendo um grande produtor dessa fruta no Brasil. Contudo, a presença de pragas, como as moscas-das-frutas, tem provocado grandes impactos na cadeia produtiva, pois estes insetos fazem parte de um grupo responsável por grandes prejuízos econômicos na cultura da mangueira. O conhecimento da flutuação populacional e a época de maior ocorrência de uma determinada espécie de inseto de importância econômica são requisitos indispensáveis para o estabelecimento de um controle eficiente e racional. O presente trabalho visou registrar a flutuação populacional das espécies de moscas-das-frutas associadas a variedades de manga, bem como correlacionar a ocorrência das moscas com as médias mensais de temperatura, precipitação e umidade relativa, e também avaliar os atrativos alimentares utilizados na captura dos insetos. A pesquisa foi conduzida de junho de 2004 a maio de 2005, em pomar comercial de manga (Mangifera indica L.-Anacardiaceae, das variedades Tommy Atkins, Keitt, Kent e Palmer, localizado no município de José de Freitas-Piauí-Brasil, na latitude 04º50'S e longitude 42º41'W. Anastrepha obliqua e Anastrepha serpentina são as espécies de tephritídeos predominantes na cultura da manga.Piaui has a considerable mango area, being a great producer of this fruit. However, the presence of plagues like the fruit flies has provoked great impacts in the production chain, so these insects are part of a responsible group of great economic damages in mango tree culture. The knowledge of the population dynamics and the highest occurrence period of specific insect species of economic importance are indispensable requirement to establish an efficient and rational control. The purpose of the present work was to register the population dynamics of the fruit fly species associated to the mango varieties, as well as correlating the fly occurrence with the monthly averages of temperature

  9. Is sexually transmitted fungal infection evidence for size-related mating success in Neotropical guava fruit flies?

    Directory of Open Access Journals (Sweden)

    Ingemar Hedström

    1998-12-01

    Full Text Available The influence of wing length on mate preference was examined in natural populations of the Neotropical guava fruit fly, Anastrepha striata Schiner, at two locations in Costa Rica. Based on evidence that the fungi are transmitted during mating, site-specific infection by Laboulbeniales fungi on the body surface was used to assess mating history. Males and females that carried fungi on the legs and/or on the ventral part of the thorax (males, and on both sides of the notum and/or the dorsal base of the abdomen (females, had significantly longer wings than males and females without fungi. This suggests that individuals of both sexes with longer wings (i.e. larger individuals enjoy higher mating success. Fungus infection is more frequent in the wet than in the seasonally dry forest, possibly because hosts are available year-round in the wet forest.

  10. Quantification of tephritid fruit fly dispersal. Guidelines for a sterile release programme

    International Nuclear Information System (INIS)

    The dispersal of sterile Anastrepha ludens and Ceratitis capitata was studied in a mango and coffee plantation in Chiapas, S. Mexico. Flies were released at the centre of a rectangular array of McPhail and Jackson traps. There were small though significant downwind movements in very light winds (below 1 m/s). Fly distributions were significantly correlated in the x-y plane on several days and these orientations were also related to wind direction. Released flies disappeared quickly, more than 90 % were caught within 5 days of release. Methodology for the presentation and analysis of data is discussed in relation to the needs of a practical sterile release programme. Recommendations are made for routine studies of fly dispersal

  11. 果蔬重要实蝇属的分布、危害与形态特征比较研究%Comparative Study on Distribution, Harm and Morphological Characteristics of Important Insects in Bactrocera in Fruits and Vegetables

    Institute of Scientific and Technical Information of China (English)

    黄振; 黄可辉

    2012-01-01

    This paper expounded the geological distribution, host plant species and major morphological characteristics of the important quarantine pest insects in fruits and vegetables in the following five genera: Bactrocera Macquart, Dacus Fabricius, Ceratitis Macleay, Anastrepha Schiner and Rhagoletis Loew, compared the similarities and differences among the five genera, and put forward some measures for the control of the important pest insects in fruits and vegetables in these genera.%阐述了果实蝇属、寡鬃实蝇属、小条实蝇属、按实蝇属、绕实蝇属5个检疫性害虫果蔬实蝇属的地理分布、寄主及其主要形态特征,比较了各个属形态特征的异同,并提出了一些防治果蔬重要实蝇属的措施.

  12. Irradiation of mangoes as a quarantine treatment

    International Nuclear Information System (INIS)

    This research project was conducted following guidelines of research protocols for post-harvest treatments developed by the United States Department of Agriculture CUSA. Laboratory bioassays included the irradiation of mangoes infested with third instar larvae of Anastrepha serpentina (Wied), A. ludens (Loew), A. obliqua (Macquart) and Ceratitis capitata (Wied) , at doses from 10 to 250 Gy. Irradiation doses were applied using a Co-60 AECL Model JS-7400 irradiator. The design was chosen to obtain a maximum to minimum ratio equal to, or less than, 1.025. C. capitata was the species most tolerant to irradiation. A dose of 60 Gy applied to third instar fruit fly larvae sterilized this species and prevented emergence of adults of the other three species. A dose of 250 Gy was required to prevent emergence of C. capitata. In fertility tests using emerged adults of A . Iudens, and A. obliqua a dose of 30 Gy gave 45 % and 27 % fertility, respectively. Adults of A. serpentina that emerged, died before reaching sexual maturity. The confirmatory tests, at probit-9 security level, were done at 100 Gy for the three species of Anastrepha and at 150 Gy for C. capitata. The quality of mangoes irradiated up to 1000 Gy was evaluated by chemical, physiological, and sensorial tests. The determination of vitamin C indicated that there was no loss of the nutritive value of the fruit. It also was observed that fruit metabolism was not accelerated since no significant increase in respiration or transpiration was registered and consumers accepted both treated and untreated fruit in the same way. (Author)

  13. The smart aerial release machine, a universal system for applying the sterile insect technique.

    Directory of Open Access Journals (Sweden)

    Ruben Leal Mubarqui

    Full Text Available Beyond insecticides, alternative methods to control insect pests for agriculture and vectors of diseases are needed. Management strategies involving the mass-release of living control agents have been developed, including genetic control with sterile insects and biological control with parasitoids, for which aerial release of insects is often required. Aerial release in genetic control programmes often involves the use of chilled sterile insects, which can improve dispersal, survival and competitiveness of sterile males. Currently available means of aerially releasing chilled fruit flies are however insufficiently precise to ensure homogeneous distribution at low release rates and no device is available for tsetse.Here we present the smart aerial release machine, a new design by the Mubarqui Company, based on the use of vibrating conveyors. The machine is controlled through Bluetooth by a tablet with Android Operating System including a completely automatic guidance and navigation system (MaxNav software. The tablet is also connected to an online relational database facilitating the preparation of flight schedules and automatic storage of flight reports. The new machine was compared with a conveyor release machine in Mexico using two fruit flies species (Anastrepha ludens and Ceratitis capitata and we obtained better dispersal homogeneity (% of positive traps, p<0.001 for both species and better recapture rates for Anastrepha ludens (p<0.001, especially at low release densities (<1500 per ha. We also demonstrated that the machine can replace paper boxes for aerial release of tsetse in Senegal.This technology limits damages to insects and allows a large range of release rates from 10 flies/km2 for tsetse flies up to 600,000 flies/km2 for fruit flies. The potential of this machine to release other species like mosquitoes is discussed. Plans and operating of the machine are provided to allow its use worldwide.

  14. Perspectives on fruit fly expansion: A lesson from a global invader, Ceratitis capitata

    International Nuclear Information System (INIS)

    Full text: Fruit flies are present worldwide, although the major pests such as species of the genera Ceratitis, Bactrocera, Anastrepha and Rhagoletis, each have a limited natural distribution. Mankind has played an important part in altering the natural distribution of some of the more polyphagous species, as well as certain oligophagous species. However, a question arises why only a few species have become or are becoming major pests. The major problem in approaching this question is the insufficient knowledge of invasive potential of different species in relation to their biological traits. The Mediterranean fruit fly (medfly), Ceratitis capitata, was the first fruit fly species that entered the scientific scene as a potential invader, given its extensive and relatively quick invasion potentials. Genetic analyses of its invasive processes, along with the knowledge of its life history and historical records, allowed us to interpret the biogeography of this species. In southeastern Africa, its home range, this species displays a vast reservoir of genetic variability, which provides a high potential for plasticity, increasing the likelihood of spreading, survival and genetic differentiation. Establishing a fine-scale map of the genetic variability in the species range, we highlighted a variety of evolutionary processes operating over different time scales: from the primary expansion in the Mediterranean area, to the more recent one in the Americas. In addition, secondary colonisation events as well as the origin of different outbreaks have been assessed. Knowledge and methods learnt from the medfly represent a model to approach and investigate the invasion processes of other fruit fly pests. Examples are different species within the genera Ceratitis, Bactrocera and Anastrepha, which represent potential threats to different geographic areas worldwide. (author)

  15. Sphaerionini (Coleoptera, Cerambycidae, Cerambycinae: novos taxons, sinonímia, chaves e nova combinação

    Directory of Open Access Journals (Sweden)

    Ubirajara R Martins

    1990-01-01

    Full Text Available New taxa described: Neomallocera, gen. n., type-species, Mallocera opulenta Newman, 1841; Protomallocera, gen. n., type-species, Mallocera hilairei Gounelle, 1908; Championa chemsaki, sp. n. (Mexico: Chiapas; Parasphaerion, gen. n., type-species, P. granulosum, sp. n. (Suriname; Mephritus quadrimaculatus, sp. n. (Bolivia: Cochabamba. M. castaneus, sp. n. (Peru: Pasco; M. fraterculus, sp. n. (Peru: Cajamarca; Nesostizocera suturalis. sp. n. (Peru and Ecuador; Morphaneflus, gen. n., type-species, M. prolixus, sp. n. (Argentina: Salta, Jujuy; Amethysphaerion eximium, sp. n. (Ecuador; A. jocosum, sp. n. (Brazil: Espírito Santo; A. submetallicum, sp. n. (Brazil: Minas Gerais; A. guarani, sp. n. (Paraguay; Aposphaerion punctulatum, sp. n. (Brazil: Amazonas; Pilisphaerion, gen. n., type-species, P. exoticum, sp. n. (Brazil: Pará; Adiposphaerion, gen n., type-species. A. rubrum, sp. n. (Brazil: Amazonas; Minipsyrassa guanabarina, sp. n. (Brazil: Rio de Janeiro; Sphaerioeme, gen. n., type-species, S. rubristerna, sp. n. (Suriname, Brazil: Goiás, Mato Grosso, Minas Gerais, São Paulo, Paraná; Apoclausirion. gen. n., type-species, A. nigricorne (Brazil: Mato Grosso. Mallocera pickeli Melzer, 1931 is considered a synonym of M. simplex White, 1853. Psyrassa trinidadensis Gilmour, 1963 is transferred to the genus Amethysphaerion. Keys to the genera related with Mallocera and to the species of Amethysphaerion are added.

  16. Effective control of the Mediterranean fruit fly by genetic sexing male only sterile insect technique releases during 1989-1990

    International Nuclear Information System (INIS)

    For two successive years, the Mediterranean fruit fly, Ceratitis capitata (Wiedemann), was effectively controlled by a combination of bait spraying onto boards suspended on host trees in May, followed by weekly releases of about one million gamma sterilized genetic sexing males till the end of the year. The treated area, Kibbutz Gvulot in southern Israel, included about 500 ha of citrus, mango and backyard fruit trees. In both years, the female/male ratio declined to extremely low levels in November-December, suggesting that the wild population had been driven to near extinction. This was apparent from fruit infestation as well, which was kept to levels below 0.1% in both years as compared with similar or even higher levels in the control area, which was treated by air bait spraying about weekly from September till the end of the year. (author). 10 refs, 7 figs, 2 tabs

  17. Control of the Mediterranean fruit fly in the Near East region using the sterile insect technique. Subregional proposals to eradicate the Medfly and establish fruit fly free areas in Cyprus, Egypt, Israel, Jordan, Lebanon, The Syrian Arab Republic and the territories under the jurisdiction of the Palestinian authority

    International Nuclear Information System (INIS)

    The Mediterranean fruit fly or medfly, Ceratitis capitata Wiedemann, is the single most important pest species affecting fresh fruits and vegetables within the Mediterranean region, but especially the Near East. For a wide range of commercial crops, including most citrus varieties, mangoes, grapes, apples, peaches, apricots, pears, plums, figs, dates, persimmons, papayas, peppers and tomatoes, it is the only economically important fruit fly in the region. This document, prepared at the request of Member States in the Near East region and developed by a group on international experts in fruit fly control, outlines plans to eradicate the medfly from three subregions of the Near East. The objective is the eradication of the medfly and establishment of fruit fly free areas within participating countries in order to reduce pesticide applications and to enable fresh fruit exports without post-harvest treatments. 12 refs, 6 figs, 19 tabs

  18. CANCER PREDISPOSITION SYNDROMES IN CHILDREN

    Directory of Open Access Journals (Sweden)

    M. Bajoghli

    2012-05-01

    Full Text Available The term cancer predisposition syndrome (CPSincludes several familial cancers in which a clear mode of inheritance may be established, although a specific gene defect has not been described in all cases.Advance in genetics and the development of new imaging have led to better understanding and early detection of these syndromes and offer the diagnosis of any associated tumors. As a result, imaging has become an essential component to management of CPSs and the care ofchildren with neurofibromatosis type I, Beckwith- Wiedemann syndrome, Von Hippel-Lindau (VHL, multiple endocrine neoplasia (MEN, familial adenomatous polyp and other syndromes. A radiologist should be familiar with these syndromes, their common associated tumors and thenew imaging techniques that are available to optimize the assessment of affected children.Of course recent advance in genetics has led to better understanding and early recongnition of these diseases and proper genetic counseling helps these patients.

  19. A case of familial isolated hemihyperplasia

    Directory of Open Access Journals (Sweden)

    Bacino Carlos A

    2004-02-01

    Full Text Available Abstract Background Hemihyperplasia (hemihypertrophy is defined as asymmetric body overgrowth of one or more body parts. Hemihyperplasia can be isolated or be part of well-defined syndromes such as in the case of Beckwith-Wiedemann syndrome (BWS. Isolated hemihyperplasia is usually sporadic, but a number of familial occurrences have been described. Case presentation We describe a Tunisian family in which three maternal cousins and their maternal grandfather present with isolated hemihyperplasia. Conclusions The etiology of isolated hemihyperplasia is unknown although in BWS, genomic imprinting has been shown to play a role in the asymmetric overgrowth. Given the similarity between these two conditions, it is possible that both may share a common pathogenesis. We also discuss the possible genetic mechanisms leading to the production of hemihyperplasia in this family.

  20. Development of high frequency and wide bandwidth Johnson noise thermometry

    International Nuclear Information System (INIS)

    We develop a high frequency, wide bandwidth radiometer operating at room temperature, which augments the traditional technique of Johnson noise thermometry for nanoscale thermal transport studies. Employing low noise amplifiers and an analog multiplier operating at 2 GHz, auto- and cross-correlated Johnson noise measurements are performed in the temperature range of 3 to 300 K, achieving a sensitivity of 5.5 mK (110 ppm) in 1 s of integration time. This setup allows us to measure the thermal conductance of a boron nitride encapsulated monolayer graphene device over a wide temperature range. Our data show a high power law (T ∼ 4) deviation from the Wiedemann-Franz law above T ∼ 100 K

  1. Genetic mapping of the human tryptophan hydroxylase gene on chromosome 11, using an intronic conformational polymorphism

    Energy Technology Data Exchange (ETDEWEB)

    Nielsen, D.A.; Goldman, D. (National Inst. on Alcohol Abuse and Alcoholism, Bethesda, MD (United States)); Dean, M. (National Cancer Inst., Frederick, MD (United States))

    1992-12-01

    The identification of polymorphic alleles at loci coding for functional genes is crucial for genetic association and linkage studies. Since the tryptophan hydroxylase (TPH) gene codes for the rate-limiting enzyme in the biosynthesis of the neurotransmitter serotonin, it would be advantageous to identify a polymorphism in this gene. By examining introns of the human TPH gene by PCR amplification and analysis by the single-strand conformation polymorphism (SSCP) technique, an SSCP was revealed with two alleles that occur with frequencies of .40 and .60 in unrelated Caucasians. DNAs from 24 informative CEPH families were typed for the TPH intron polymorphism and analyzed with respect to 10 linked markers on chromosome 11, between p13 and p15, with the result that TPH was placed between D11S151 and D11S134. This region contains loci for several important genes, including those for Beckwith-Wiedemann syndrome and tyrosine hydroxylase. 37 refs., 2 figs., 1 tab.

  2. Insects of forensic importance from Rio Grande do Sul state in southern Brazil Insetos de importância forense do Rio Grande do Sul, sul do Brasil

    Directory of Open Access Journals (Sweden)

    Alex Sandro Barros de Souza

    2008-01-01

    Full Text Available The experiment was conducted throughout the year 2005, at the Universidade Federal de Pelotas campus. The objectives of the study were to analyze the decomposition of rabbit (Oryctolagus cunniculus L. with mean weight 2.67 Kg carcass and describe the interaction of insects acting on it, as well as the insect's potential use in legal medicine. We collected 5.239 insect specimens; 1.827 of them were obtained from larvae collected from carcasses and reared. The specimens were identified and 20 species were of forensic importance. The species Lucilia eximia (Wiedemann, 1819 and Chrysomya albiceps (Wiedemann, 1819 (Diptera, Calliphoridae were better indicators of post-mortem interval (PMI because they occurred in all seasons and were the first to reach the carcass. Hemilucilia semidiaphana (Rondani, 1850, H. segmentaria (Fabricius, 1805 (Diptera, Calliphoridae, Muscina stabulans (Fallén, 1817 and Synthesiomyia nudiseta (Wulp, 1883 (Diptera, Muscidae can disclose death time because they occur only in certain months of the year. Oxyletrum discicolle (Brullé, 1840 (Coleoptera, Silphidae and Dermestes maculates De Geer, 1774 (Coleoptera, Desmestidae were found in advanced stages of decomposition.Durante todas as estações do ano de 2005 foi conduzido um experimento em uma área do campus da Universidade Federal de Pelotas. O objetivo do estudo foi analisar a decomposição de carcaças de coelho (Oryctolagus cunniculus L. pesando 2,67 Kg em média e descrever como os insetos atuam na decomposição e seu possível uso na medicina-legal. Foram coletados 5.239 espécimes; 1.827 foram obtidos a partir da criação de imaturos coletados na carcaça. Foram identificadas 20 espécies com importância forense. As espécies mais propícias para serem usadas com indicadoras de intervalo post-mortem (IPM são Lucilia eximia (Wiedemann, 1819 e Chrysomya albiceps (Wiedemann, 1819 (Diptera, Calliphoridae por terem sido encontradas em todas as estações de coleta

  3. Thermal transport in tantalum oxide films for memristive applications

    Energy Technology Data Exchange (ETDEWEB)

    Landon, Colin D.; Wilke, Rudeger H. T.; Brumbach, Michael T.; Blea-Kirby, Mia; Ihlefeld, Jon F.; Marinella, Matthew J.; Beechem, Thomas E. [Sandia National Laboratories, Albuquerque, New Mexico 87123 (United States); Brennecka, Geoff L. [Colorado School of Mines, Golden, Colorado 80401 (United States)

    2015-07-13

    The thermal conductivity of amorphous TaO{sub x} memristive films having variable oxygen content is measured using time domain thermoreflectance. Thermal transport is described by a two-part model where the electrical contribution is quantified via the Wiedemann-Franz relation and the vibrational contribution by the minimum thermal conductivity limit for amorphous solids. The vibrational contribution remains constant near 0.9 W/mK regardless of oxygen concentration, while the electrical contribution varies from 0 to 3.3 W/mK. Thus, the dominant thermal carrier in TaO{sub x} switches between vibrations and charge carriers and is controllable either by oxygen content during deposition, or dynamically by field-induced charge state migration.

  4. The effect of pesticide residue on caged mosquito bioassays.

    Science.gov (United States)

    Barber, J A S; Greer, Mike; Coughlin, Jamie

    2006-09-01

    Wind tunnel experiments showed that secondary pickup of insecticide residue by mosquitoes in cage bioassays had a significant effect on mortality. Cage bioassays using adult Ochlerotatus taeniorhynchus (Wiedemann) investigated the effect of exposure time to a contaminated surface. Cages were dosed in a wind tunnel using the LC50 for naled (0.124 mg a.i./ml) and an LC25 (0.0772 mg a.i./ml) for naled. Half of the bioassay mosquitoes were moved directly into clean cages with the other half remaining in the sprayed, hence contaminated, cage. Treatment mortality was assessed at 8, 15, 30, 60, 120, 240, and 1,440 min postapplication. Cage contamination had a significant effect on mosquito mortality for both the LC25 and LC50 between 15 and 30 min postapplication. PMID:17067048

  5. News from the Library: E-book or printed book? You can have the best of both worlds!

    CERN Multimedia

    CERN Library

    2011-01-01

    Over the last couple of years, the Library has been expanding its collection of electronic books. The most popular titles are, of course, also bought as paper copies and are available for loan.   More than 15,000 titles, across all CERN-relevant disciplines, are now available for download from the Library. Recently, Springer physics and astronomy books, as well as all volumes from Lecture Notes in Physics, were added. So, from now on, readers will not have to queue up for popular books such as "Particle Accelerator Physics" (Wiedemann) or "Particle Detection with Drift Chambers" (Blum, Rolandi and Riegler), which are often in high demand. From left to right: Tullio Basaglia (CERN Library), Christian Caron (Springer) and Wim van der Stelt (Springer). In addition to providing electronic access, the publisher offers people at CERN the possibility to purchase paperback copies, distributed under the label “My Copy”, for the tempting price of &a...

  6. Effect of X-ray irradiation on fruit quality of clementine mandarin cv. 'Clemenules'

    Energy Technology Data Exchange (ETDEWEB)

    Alonso, Miquel [Centre de Technologia Postcollita, Institut Valencia d' Investigacions Agraries (IVIA), Ctra. de Montcada a Naquera, km. 4.5, E-46113 Montcada, Valencia (Spain); Palou, Lluis [Centre de Technologia Postcollita, Institut Valencia d' Investigacions Agraries (IVIA), Ctra. de Montcada a Naquera, km. 4.5, E-46113 Montcada, Valencia (Spain)]. E-mail: lluis.palou@ivia.es; Angel del Rio, Miguel [Centre de Technologia Postcollita, Institut Valencia d' Investigacions Agraries (IVIA), Ctra. de Montcada a Naquera, km. 4.5, E-46113 Montcada, Valencia (Spain); Jacas, Josep-Anton [Departament de Ciencies Experimentals, Universitat Jaume I (UJI), Campus del Riu Sec, E-12071 Castello de la Plana (Spain)

    2007-10-15

    The effects of a potential quarantine treatment consisting of exposure to X-ray irradiation against the Mediterranean fruit fly Ceratitis capitata (Wiedemann) (Diptera: Tephritidae) on 'Clemenules' mandarin quality are presented and compared with those from the standard cold temperature quarantine treatment. X-ray irradiation doses of 0.195 and 0.395 kGy had no detrimental effects on fruit quality (rind color, firmness, juice yield, maturity index, internal volatiles, deterioration index and sensory evaluation). These results therefore indicate that X-ray irradiation is a harmless and highly effective quarantine technique for clementine mandarin and this technique could be as useful as the current cold treatment for 'Clemenules' mandarins.

  7. Quality measurements of the gamma irradiated medfly ceratitis capitata wied

    International Nuclear Information System (INIS)

    The damage caused by the mediterranean fruit fly (Medfly) Ceratitis capitata (Wiedemann) to Egyptian agriculture is increasing mainly because farmers are finding it harder to choose suitable means of control in view of the difficulties frequently associated with the use of insecticides, such as undesirable residues and biological disequilibrium. Recently, the sterile-insect technique has opened up new possibilities of this insect control in egypt. The use of sterile insects to eradicate or suppress populations of pests was conceived by knipling,(1955) and applied successfully for the first time in 1954 against the screw-worm fly, cochliomyia hominivorax (cocquerel) on the island of curacao (Baumhover et al., 1955) and then in 1958 and 1959 in the south-eastern united states of america (knipling, 1960)

  8. [Hepatoblastoma, Etiology, Case Reports].

    Science.gov (United States)

    Puchmajerová, A; Křepelová, A; Indráková, J; Sítková, R; Balaščak, I; Kruseová, J; Švojgr, K; Kodet, R; Kynčl, M; Vícha, A; Macek, M

    2016-01-01

    Hepatoblastoma is an uncommon malignant neoplasm in general, yet, it is the most common liver malignancy in children with the incidence about one per milion children. This type of liver tumor usually occurs before the age of three years. The etiology of hepatoblastoma remains unknown. However, there are some genetic conditions known to be associated with an increased risk of developing hepatoblastoma such as Beckwith-Wiedemann syndrome, hemihypertrophy, APC-associated polyposis, α-1-antitrypsin defficiency and some metabolic disorders including tyrosinemia, galactosemia and glycogen storage disease type 1. There is a higher risk of hepatoblastoma in children with very low birthweight, children who acquire hepatitis B at an early age and children with congenital biliary atresia. PMID:26691946

  9. Spin-dependent thermal and electrical transport in a spin-valve system

    International Nuclear Information System (INIS)

    Within the framework of Bu'ttiker's gauge invariant and charge conservation dc transport theory, the spin-dependent thermal and electrical transport in a ferromagnet-insulator-ferromagnet tunnel junction is investigated at finite bias voltage and finite temperature. It is observed that the relative orientations of magnetizations in the two ferromagnetic (FM) electrodes as well as temperature have remarkable effects on the differential conductance, thermopower, Peltier effect, and thermal conductivity. At low temperature the quantum resonant tunneling is predominant, leading to the deviation of classical transport theory, while the transport of electrons are crucially governed by thermal processes at high temperature. The so-called spin-valve phenomenon is clearly uncovered for both the differential conductance and the thermal conductivity at low temperature. The Wiedemann-Franz law is examined, and the inelastic tunneling spectroscopy is also discussed. Our findings are expected to be measured in the near future

  10. Lattice thermal conductivity of YBa2Cu3O7-δ

    International Nuclear Information System (INIS)

    We report a systematic study of the ab-plane thermal conductivity (K) on single crystal and liquid-phase processed (LPP) specimens of YBa2Cu3O7-δ (δ≤0.16) in the temperature range 10 K ≤ T ≤ 300 K. From measurements of electrical conductivity on the same specimens and application of the Wiedemann-Franz law we estimate the relative contributions to the heat conduction from the carriers and the lattice. The normal-state phonon scattering mechanisms are quantified by calculations which employ the conventional theory of lattice heat conduction by longitudinal acoustic phonons. Differences in the magnitude and temperature dependence of K for the LPP and crystal specimens are accounted for by differences in the relative weight of phonon-defect, phonon-carrier, and phonon-phonon scattering. For all specimens phonon-defect scattering predominates throughout most of the temperature range. (orig.)

  11. SLC positron damping ring optics design

    International Nuclear Information System (INIS)

    The basic SLAC Linear Collider operation scheme assumes the use of two damping rings, one for the e-, one for the e+, in order to reduce the colliding beam normalized emittances to 30 π μradm hence raising the corresponding luminosity by a factor 170. The e- damping ring optics, designed by H. Wiedemann, has been extensively studied and modelled since it's completion at the end of 1982. The e+ damping ring being built will be based on the same design except for some modifications resulting from the studies on the e- damping ring which clearly pointed out two major weak points as far as the optics is concerned. The present paper describes the basic modifications of the ring lattice and main equipment positions in order to improve the situation in the Positron Damping Ring. 16 refs., 2 figs., 1 tab

  12. Mediterranean fruit flies: sterility and sexual competitiveness in the laboratory after treatment with gamma irradiation in air, carbon dioxide, helium, nitrogen, or partial vacuum

    International Nuclear Information System (INIS)

    The level of sterility of males of Ceratitis capitata (Wiedemann) was similar when a given dose of gamma irradiation was applied to pupae in atmospheres of nitrogen, carbon dioxide or helium or in a partial vacuum. A dose of 10 krad in air was sufficient to produce 99.5 percent sterility in males; a dose of 16 krad was required to obtain this same level of sterility when treatment was done in nitrogen, carbon dioxide, helium or partial vacuum. Males treated in each of the modified atmospheres were significantly more competitive than males treated in air; however, flies treated in nitrogen or helium were most competitive. When pupae treated in air, partial vacuum or nitrogen were packed in polyethylene bags and held for 20 h at 240C to simulate shipping conditions, competitive values for males were 0.22, 0.56, and 0.71, respectively

  13. Thermal conductivity of the superconducting filled skutterudite compounds PrOs{sub 4}Sb{sub 12} and PrRu{sub 4}Sb{sub 12}

    Energy Technology Data Exchange (ETDEWEB)

    Rahimi, S; Hill, R W [Guelph-Waterloo Physics Institute and Department of Physics and Astronomy, University of Waterloo, Waterloo (Canada); Maple, M B [Department of Physics and Institute for Pure and Applied Physical Sciences, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093 (United States)], E-mail: robhill@uwaterloo.ca

    2008-05-28

    We report measurements of the thermal and charge conductivities of two single crystals of PrOs{sub 4}Sb{sub 12} and PrRu{sub 4}Sb{sub 12} over the temperature range of 1.2-30 K at zero magnetic field. For PrRu{sub 4}Sb{sub 12}, we find behaviour consistent with a simple metal and recover the Wiedemann-Franz law in the low temperature limit above T{sub c}. For PrOs{sub 4}Sb{sub 12}, a simple model is used to separate out the electronic conductivity which shows an unusual temperature dependence upon entering the superconducting state. For both systems, the temperature dependence of the Lorenz number is shown to be consistent with scattering from Pr{sup 3+} ions in the presence of the crystalline electric field.

  14. Composition of Mediterranean fruit fly third instar larvae (Diptera: Tephritidae) and diet: Nutrient balance studies on amino acids, minerals and nutrient composition in fresh and spent mass rearing diets

    International Nuclear Information System (INIS)

    Mass production of the Mediterranean fruit fly (Medfly) larvae, Ceratitis capitata Wiedemann, requires a rearing diet (Tanaka et al. 1969 1970) of which the nutrient requirements and digestibility have not been established. Setbacks in rearing productivity from the expected 100% yield to as low as 3% yield may occasionally be directly attributed to insecticide contamination or a variety of possible cause(s) (Kobayashi, 1993). These causes include inadequate nutrition, poor diet formulation, overcrowding of either microorganisms or Drosophila, or to the inherent processes of oxidative or microbial deterioration of nutrients. The purpose of this study was to establish the nutritional status of the Mediterranean fruit fly diet through a material balance study for changes in proximate composition (i.e., moisture, protein, fat, ash, carbohydrates), amino acids, minerals between fresh and spent diets, and in the fruit fly larvae themselves

  15. Factors affecting female re-mating frequency in the Mediterranean fruit fly (Diptera: Tephritidae)

    International Nuclear Information System (INIS)

    Mating and re-mating of two laboratory strains (Petapa and Guate), one wild population (Antigua) of Ceratitis capitata (Wiedemann) and one of the hybrids between them were studied under laboratory conditions. No evidence of sexual isolation at first mating was found among them. Re-mating frequency was higher under crowded conditions for the two laboratory strains. The probability of Pe tap a females re-mating depended more on the origin of the male and was negatively associated with the duration of the first mating, but these variables had no effect on re-mating tendency of Guate females. Matings by Petapa males were significantly less prolonged than those of Guate or hybrid males. With respect to re-mating, Petapa non-virgin females preferred Petapa to Guate males. (author)

  16. Pictorial keys for predominant Bactrocera and Dacus fruit flies (Diptera: Tephritidae of north western Himalaya

    Directory of Open Access Journals (Sweden)

    C. S. Prabhakar

    2012-09-01

    Full Text Available A pictorial key for 13 species of fruit flies under 2 genera namely Bactrocera and Dacus of subfamily Dacinae (Diptera: Tephritidae is presented in this paper based on actual photographs of fruit flies collected from north western Himalaya of India during 2009-2010. Among these, Bactrocera diversa (Coquillett, Bactrocera scutellaris (Bezzi, Bactrocera tau (Walker, Bactrocera cucurbitae (Coquillett, Bactrocera zonata (Saunders, Bactrocera correcta (Bezzi, Bactrocera dorsalis (Hendel, Bactrocera latifrons (Hendel and Dacus ciliatus Loew are the pests of agricultural and horticultural ecosystems. Bactrocera latifrons, Bactrocera nigrofemoralis White and Tsuruta, Dacus longicornis Wiedemann and Dacus sphaeroidalis (Bezzi are the new records from the region of which host range has yet to be investigated. The pictorial keysdeveloped for these species will help the researchers for their easy and accurate identification.

  17. Effect of the sex ratio on egg collection and hatch of the Mediterranean fruit fly (Diptera: Tephritidae)

    International Nuclear Information System (INIS)

    When the female:male ratio in the adult cages of artificially reared Mediterranean fruit fly, Ceratitis capitata (Wiedemann), was increased from 50:50 to 80:20 (the initial number of total adults was always the same) a 50% overall increase in the fertilized eggs collected per cage occurred during the first 2 weeks of adult life. Smaller increases occurred when the sex ratios were between 50:50 and 80:20, and there was a decrease (compared with the 80:20 sex ratio) when the sex ratio was 90:10 because the males needed several days to fertilize all, or nearly all of the females. At high female:male ratios, there was no increase in the eggs sticking on the oviposition net, in spite of the increased egg laying per surface unit of oviposition net. (author). 8 refs, 5 tabs

  18. Transport of charge and entropy in the normal state of an optimally doped cuprate at T=0 limit

    International Nuclear Information System (INIS)

    The Wiedemann-Franz (WF) law strictly relates the conduction of heat and charge in a Fermi liquid at T=0 limit. Its validity or violation in the normal state of high-Tc cuprates has become a subject of intense investigation. However, until present, the normal state of hole-doped cuprates at optimal doping level has not been explored due to the difficulties of measuring sub-Kelvin thermal conductivity at very high magnetic fields. We present the first verification of the WF law in an optimally doped cuprate. By measuring the low-temperature thermal and electric conductivities of Bi2Sr2CuO6+δ at 25 T, we found that within experimental resolution, the ground state of high-Tc cuprates at optimal doping level can not be distinguished from a Fermi liquid

  19. Thermoelectric effects in quantum Hall systems beyond linear response

    International Nuclear Information System (INIS)

    We consider a quantum Hall system with an antidot acting as a energy dependent scatterer. In the purely charge case, we find deviations from the Wiedemann-Franz law that take place in the nonlinear regime of transport. We also discuss Peltier effects beyond linear response and describe both effects using magnetic-field asymmetric transport coefficients. For the spin case such as that arising along the helical edge states of a two-dimensional topological insulator, we investigate the generation of spin currents as a result of applied voltage and temperature differences in samples attached to ferromagnetic leads. We find that in the parallel configuration the spin current can be tuned with the leads' polarization even in the linear regime of transport. In contrast, for antiparallel magnetizations the spin currents has a strict nonlinear dependence on the the applied fields

  20. Hangout With CERN: Hot stuff - the early Universe (S01E06)

    CERN Multimedia

    Kahle, Kate

    2012-01-01

    This Hangout takes us well into the past, as we delve into the very early Universe. The LHC can recreate these early-Universe conditions in the lab by colliding heavy ions together. But why do we collide these different particle species? What is in store for the heavy-ion collisions after the end-of-year break? What is this mysterious quark-gluon plasma? CERN's Quantum Diaries blogger and ATLAS physicist Pauline Gagnon is joined by theorists Urs Wiedemann and Stefan Floerchinger, as well as experts from the LHC's heavy-ion experiment, ALICE: Despina Hatzifotiadou, Antonin Maire, David Dobrigkeit Chinellato, Leticia Cunqueiro Mendez and Kenneth Read. Also connecting are ATLAS physicists Steven Goldfarb and Tiina Wickstroem from the Science Museum in London with content developer Alice Lighton, as well as Fraser Cain, publisher of Universe Today. Recorded live on 6th December 2012.

  1. Effect of acclimation to outdoor condition on the sexual performance of mass-produced Medflies (Diptera: Tephritidae)

    International Nuclear Information System (INIS)

    Application of the sterile insect technique (SIT) as part of integrated area-wide programs to control the Mediterranean fruit fly (medfly) Ceratitis capitata (Wiedemann) require that the released males attract wild females and transfer sterile sperm. However, knowledge about male sexual performance after they are released is scarce. We conducted a study to evaluate male sexual performance in field cage tests, according to standard quality control procedures. Mass-reared 5-d-old sterile males from the genetic sexing strain VIENNA 7mix2000 were acclimated for 0, 1, and 3 d to outdoor conditions before competing with wild males for wild females. Although the proportion of mating (PM) in the test was satisfactory, the resulting relative sterility index (RSI) data showed no significant differences among the treatments. The data indicate that pre-conditioning males to outdoor conditions in Madeira did not confer an advantage in field cage sexual performance. (author)

  2. Thermal conductance of pressed contacts at liquid helium temperatures

    Science.gov (United States)

    Salerno, L. J.; Kittel, P.; Spivak, A. L.

    1983-01-01

    It is pointed out that the optimum design of cryogenic instruments requires accurate thermal models. The present models are limited by a lack of knowledge of the low temperature thermal conductance of the bolted joints which are typically used in the instrument-to-system interface. In connection with studies of pressed contacts, it has been found that the thermal conductance does not obey the Wiedemann-Franz law. The present investigation is concerned with the characterization of the thermal conductance of pressed contacts at liquid helium-4 temperatures, taking into account the dependence of thermal contact conductance on applied force and temperature. It is shown that for the 0.4 micron OFHC copper pressed contact pair, the thermal conductance varies roughly as the second power of the temperature, and increases with increasing applied force.

  3. Necrophagous Muscoids that develop in carcasses of Didelphis albiventris Lund, 1841 (Didelphimorphia, Didelphidae in Rio Grande do Sul, Brazil

    Directory of Open Access Journals (Sweden)

    Ândrio Zafalon da Silva

    2010-06-01

    Full Text Available Information regarding the similarity of the fauna that colonizes decomposing wildlife is insipient among the different carcass models. Species with different tissues and alimentary diets are hypothesized to be a colonization source of different necrophagous species. To verify this hypothesis, we observed the decomposition of a carcass of Didelphis albiventris Lund, 1841 (Didelphimorphia, Didelphidae, that had been run over by a vehicle. 2,273 adults were reared from specimens at immature stages collected on the carcass. The most representative species belongs to Calliphoridae, Muscidae, Sarcophagidae and Fanniidae, with numeric dominance of Lucilia eximia Wiedemann, 1819 (Diptera, Calliphoridae. Another six species were found, besides non-identified Fanniidae specimens. All species were colonizers of traditionally used forensic models.

  4. Thermal conductivity of nanoscale thin nickel films

    Institute of Scientific and Technical Information of China (English)

    YUAN Shiping; JIANG Peixue

    2005-01-01

    The inhomogeneous non-equilibrium molecular dynamics (NEMD) scheme is applied to model phonon heat conduction in thin nickel films. The electronic contribution to the thermal conductivity of the film is deduced from the electrical conductivity through the use of the Wiedemann-Franz law. At the average temperature of T = 300 K, which is lower than the Debye temperature ()D = 450 K,the results show that in a film thickness range of about 1-11 nm, the calculated cross-plane thermal conductivity decreases almost linearly with the decreasing film thickness, exhibiting a remarkable reduction compared with the bulk value. The electrical and thermal conductivities are anisotropic in thin nickel films for the thickness under about 10 nm. The phonon mean free path is estimated and the size effect on the thermal conductivity is attributed to the reduction of the phonon mean free path according to the kinetic theory.

  5. Curva de sobrevivência e estimativa de entropia em Lucilia cuprina (Diptera, Calliphoridae Survivorship curve and estimate of entropy in Lucilia cuprina (Diptera, Calliphoridae

    Directory of Open Access Journals (Sweden)

    Francely M. Fernandes

    2003-09-01

    Full Text Available Lucilia cuprina (Wiedemann, 1830 is a cosmopolite blowfly species of medical and veterinary importance because it produces myiasis, mainly in ovine. In order to evaluate the demographic characteristics of this species, survivorship curves for 327 adult males and 323 adult females, from generation F1 maintained under experimental conditions, were obtained. Entropy was utilized as the estimator of the survival pattern to quantify the mortality distribution of individuals as a function of age. The entropy values 0.216 (males and 0.303 (females were obtained. These results denote that, considering the survivorship interval until the death of the last individual for each sex, the males present a tendency of mortality in more advanced age intervals, in comparison with the females.

  6. Experimental study on the in-plane thermal conductivity of Au nanofilms

    Institute of Scientific and Technical Information of China (English)

    CAO Bingyang; ZHANG Qingguang; ZHANG Xing; TAKAHASHI Koji; IKUTA Tatsuya; QIAO Wenming; FUJII Motoo

    2007-01-01

    The in-plane thermal conductivity of Au nanofilms with thickness of 23 nm, which are fabricated by the electron beamphysical vapor deposition method and a suspension technology, is experimentally measured at 80-300 K by a one-dimensional steady-state electrical heating method. Strong size effects are found on the measured nanofilm thermal conductivity. The Au nanofilm in-plane thermal conductivity is much less than that of the bulk material. With the increasing temperature, the nanofilm thermal conductivity increases.This is opposite to the temperature dependence of the bulk property. The Lorenz number of the Au nanofilms is about three times larger than the bulk value and decreases with the increasing temperature, which indicates the invalidity of the Wiedemann-Franz law for metallic nanofilms.

  7. EMQN best practice guidelines for the molecular genetic testing and reporting of chromosome 11p15 imprinting disorders

    DEFF Research Database (Denmark)

    Eggermann, Katja; Bliek, Jet; Brioude, Frédéric;

    2016-01-01

    disorders and the demand for molecular testing, it turned out that there is an urgent need for a standardized molecular diagnostic testing and reporting strategy. Based on the results from the first external pilot quality assessment schemes organized by the European Molecular Quality Network (EMQN) in 2014......Molecular genetic testing for the 11p15-associated imprinting disorders Silver-Russell and Beckwith-Wiedemann syndrome (SRS, BWS) is challenging because of the molecular heterogeneity and complexity of the affected imprinted regions. With the growing knowledge on the molecular basis of these......, and in the light of their feedback amendments were made. The final document was ratified in the course of an EMQN best practice guideline meeting and is in accordance with the general SRS and BWS consensus guidelines, which are in preparation. These guidelines are based on the knowledge acquired from...

  8. Elections to the Senior Staff Advisory Committee (“The Nine”) 2014

    CERN Multimedia

    Jean-Philippe Tock, spokesperson of the "Nine"

    2014-01-01

    The electronic voting process for the Senior Staff Advisory Committee (“The Nine”) was closed on Thursday 28 August 2014 at 17.00.   Of the 511 Senior Staff members eligible to vote, 302 voted. This represents a participation of 59%, to be compared to 63% in 2013, 61% in 2012, 43% in 2011, 44% in 2010, 57% in 2009, 53% in 2008, 63% in 2007, 64% in 2006 and 66% in 2005. The results are: Electoral group 1 (Research Physicists) Candidate Dept Votes Result Urs WIEDEMANN PH 155 ELECTED   Electoral group 2 (Applied Physicists, Engineers, Computer Scientists) Candidate Dept Votes Result Johan BREMER TE 59   Horst BREUKER PH 17   Olivier BRUNNER BE 41   Katy FORAZ EN 55   Wolfgang HOFLE BE 8   Yacine KADI EN 12   Pierre NININ GS 14   Mauro NONIS EN 14 &...

  9. Particle accelerator physics

    CERN Document Server

    Wiedemann, Helmut

    2015-01-01

    This book by Helmut Wiedemann is a well-established, classic text, providing an in-depth and comprehensive introduction to the field of high-energy particle acceleration and beam dynamics. The present 4th edition has been significantly revised, updated and expanded. The newly conceived Part I is an elementary introduction to the subject matter for undergraduate students. Part II gathers the basic tools in preparation of a more advanced treatment, summarizing the essentials of electrostatics and electrodynamics as well as of particle dynamics in electromagnetic fields. Part III is an extensive primer in beam dynamics, followed, in Part IV, by an introduction and description of the main beam parameters and including a new chapter on beam emittance and lattice design. Part V is devoted to the treatment of perturbations in beam dynamics. Part VI then discusses the details of charged particle acceleration. Parts VII and VIII introduce the more advanced topics of coupled beam dynamics and describe very intense bea...

  10. Effect of X-ray irradiation on fruit quality of clementine mandarin cv. 'Clemenules'

    International Nuclear Information System (INIS)

    The effects of a potential quarantine treatment consisting of exposure to X-ray irradiation against the Mediterranean fruit fly Ceratitis capitata (Wiedemann) (Diptera: Tephritidae) on 'Clemenules' mandarin quality are presented and compared with those from the standard cold temperature quarantine treatment. X-ray irradiation doses of 0.195 and 0.395 kGy had no detrimental effects on fruit quality (rind color, firmness, juice yield, maturity index, internal volatiles, deterioration index and sensory evaluation). These results therefore indicate that X-ray irradiation is a harmless and highly effective quarantine technique for clementine mandarin and this technique could be as useful as the current cold treatment for 'Clemenules' mandarins

  11. Electronic thermal conduction in suspended graphene

    Science.gov (United States)

    Rizwana Begum, K.; Sankeshwar, N. S.

    2015-09-01

    The electronic thermal conductivity (ETC), κe, of suspended graphene (SG) is studied for 15Boltzmann transport formalism. The electrons are considered to be scattered from defects along with the intrinsic in-plane acoustic phonons, out-of-plane flexural phonons (FPs) and optical phonons. The ETC is evaluated by computing the first-order perturbation distribution function by directly solving the linearized Boltzmann equation by an iterative method. Numerical calculations of the temperature and concentration dependences of κe show the dominance of charged impurity scattering at lower temperatures (T<75 K) and of FPs at higher temperatures. The results are compared with the commonly used low-temperature and high-energy relaxation time approximations. Our calculations are in good agreement with recent κe data extracted for high-mobility SG samples. The validity of Wiedemann-Franz law is also discussed.

  12. Low-temperature transport properties of UCu5

    International Nuclear Information System (INIS)

    The electrical resistivity ρ(T) and the thermal conductivity λ(T) have been measured for UCu5 in the temperature range between 0.02 and 20 K. Two distinct anomalies in ρ(T) are due to previously established phase transitions at approximately 15 and 1 K, respectively. They indicate considerable changes in the electronic structure of this compound, implying sizeable truncations of the Fermi surface with decreasing temperature at both transitions. In almost the entire covered temperature range the thermal conductivity is dominated by phonon contributions. Its temperature dependence is fairly well reproduced by a calculation considering phonon scattering by electrons and by point defects. At very low temperatures, as T approaches 0 K, the Wiedemann-Franz law λe.ρ=L0 T, where λe is the electronic part of λ(T) and L0 is the Lorenz number, is almost perfectly fulfilled. (orig.)

  13. Espécies de Syrphidae (Diptera visitantes das flores de Eryngium horridum (Apiaceae no Vale do Rio Pardo, RS, Brasil Species of Syrphidae (Diptera as flower visitors of Eryngium horridum (Apiaceae in Rio Pardo Valley, RS, Brazil

    Directory of Open Access Journals (Sweden)

    Mírian N. Morales

    2006-03-01

    Full Text Available No período entre dezembro de 2001 a dezembro de 2003, realizaram-se coletas com rede entomológica de insetos visitantes das flores de Eryngium horridum (Apiaceae na Região do Vale do Rio Pardo, RS, Brasil. Esta planta é perene, freqüente em campos secos e apresenta expressiva dispersão. Possui, no Rio Grande do Sul, época de floração entre novembro e janeiro. Foram capturados 1.066 insetos visitantes, destes, 569 Syrphidae. Identificaram-se 60 espécies de Syrphidae, distribuídas em 16 gêneros. O gênero Palpada Macquart, 1834 foi dominante, e Ornidia Lepeletier & Serville, 1828 e Toxomerus Macquart, 1855 abundantes. Das espécies mais freqüentes, Palpada furcata (Wiedemann, 1819 ocupou posição mais elevada. Os sirfídeos apresentaram preferência pelas temperaturas entre 28 e 32ºC, e foram mais freqüentemente coletados entre as 10 e 14 horas, com picos entre as 10 e 11 horas. As fêmeas foram as mais freqüentes. O predomínio de sirfídeos robustos e mais ágeis sobre sirfídeos de menor porte como Toxomerus e Allograpta Osten Sacken, 1875, pode ter sido resultante de competição interespecífica. Eristalinus taeniops (Wiedemann, 1818 é pela primeira vez citada para o Estado do Rio Grande do Sul. A alta diversidade e abundância dos espécimes coletados nas flores de E. horridum são indicadores da importância desta na dieta dos sirfídeos, visto que possui grande número de inflorescências e floração ocorrendo nos meses de baixa oferta de recursos alimentares na área de estudo.Between December 2001 and December 2003, collections of flower visitors of Eryngium horridum (Apiaceae were carried out in areas of Rio Pardo Valley, RS, Brazil. This plant is perennial, commonly found in dry fields, presenting a wide distribution. Its flowering period ranges from November to January in Rio Grande do Sul. A total of 1,066 insects were captured, 569 of them belonging to Syrphidae. Sixty species of Syrphidae were identified

  14. Thermal transport in tantalum oxide films for memristive applications

    International Nuclear Information System (INIS)

    The thermal conductivity of amorphous TaOx memristive films having variable oxygen content is measured using time domain thermoreflectance. Furthermore, the thermal transport is described by a two-partmodel where the electrical contribution is quantified via the Wiedemann-Franz relation and the vibrational contribution by the minimum thermal conductivity limit for amorphous solids. Additionally, the vibrational contribution remains constant near 0.9 W/mK regardless of oxygen concentration, while the electrical contribution varies from 0 to 3.3 W/mK. Thus, the dominant thermal carrier in TaOx switches between vibrations and charge carriers and is controllable either by oxygen content during deposition, or dynamically by field-induced charge state migration

  15. Heat diffusion in the disordered electron gas

    Science.gov (United States)

    Schwiete, G.; Finkel'stein, A. M.

    2016-03-01

    We study the thermal conductivity of the disordered two-dimensional electron gas. To this end, we analyze the heat density-heat density correlation function concentrating on the scattering processes induced by the Coulomb interaction in the subtemperature energy range. These scattering processes are at the origin of logarithmic corrections violating the Wiedemann-Franz law. Special care is devoted to the definition of the heat density in the presence of the long-range Coulomb interaction. To clarify the structure of the correlation function, we present details of a perturbative calculation. While the conservation of energy strongly constrains the general form of the heat density-heat density correlation function, the balance of various terms turns out to be rather different from that for the correlation functions of other conserved quantities such as the density-density or spin density-spin density correlation function.

  16. Apparatus for measuring RRR

    CERN Document Server

    Kuchnir-Moyses

    2003-01-01

    The evaluation of purity and thermal conductivity at liquid Helium temperatures of the Niobium to be used in the fabrication of superconducting RF cavities is normally done by measuring the Residual Resistivity Ratio (RRR) of a sample of the material. The relationship between the thermal and the electrical conductivity (Wiedemann-Franz Law) simplifies the task by leading to the measurement of electrical instead of thermal resistance. The RRR is the ratio between the resistances of the sample at room temperature and at the operating temperature of the cavity. A more precise definition is discussed later. The conductivity at low temperatures depends on lattice defects and impurities. Impurities are also important for cavities in a direct way as affecting the RF properties of its surface when exposed by chemical etching. The following describes the experimental apparatus for RRR measurements developed at Fermilab's Beams Division. Part 2 contains a description of the sample-holder and measurement hardware. Part ...

  17. Biology of Aphaereta sp. n (Hymenoptera: Braconidae: Alysiinae), a new larval parasitoid of Ceratitis capitata Wied. (Diptera: Tephritidae)

    OpenAIRE

    Teixeira, Tânia Isabel Peres

    2011-01-01

    Dissertação de Mestrado - Biotecnologia em Controlo Biológico. As espécies que pertencem ao género Aphaereta estão distribuídas praticamente por todo o mundo, e vivem associadas a dípteros sinantrópicos e outros dípteros. Foi encontrado um total de 12 indivíduos, da população em estudo, em duas pupas de Ceratitis capitata (Wiedemann) (Diptera: Tephritidae), estes indivíduos são endo-parasitóides gregários larva-pupa. Foram estimados pela primeira vez os parâmetros biológicos de Aphaereta s...

  18. Calliphoridae (Diptera from wild, suburban, and urban sites at three Southeast Patagonian localities: Calliphoridae (Diptera de ambientes no habitados, suburbanos y urbanos en tres localidades del sudeste patagónico

    Directory of Open Access Journals (Sweden)

    Juan C. Mariluis

    2008-06-01

    Full Text Available Species composition, relative abundance, sex ratio and habitat preference of blowflies (Diptera: Calliphoridae from Caleta Olivia, Puerto Deseado, and Puerto San Julián (Santa Cruz Province, Argentina were studied during late spring and summer in 2004-2005. Results showed a higher prevalence of the exotic species, Calliphora vicina (Robineau-Desvoidy and Phaenicia sericata (Meigen at urban sites over the natives, Compsomyops fulvicrura (Robineau-Desvoidy and Sarconesia chlorogaster (Wiedemann, which shows a strong preference for those sampling sites either not inhabited or less influenced by human activities. Sex ratio was female biased for all species, except for Sarconesia chlorogaster, which exhibited a male prevalence over females.Durante fines de la primavera-verano de 2004-2005, se analizó la composición, abundancia relativa y proporción de sexos de especies de Calliphoridae (Diptera en las localidades de Caleta Olivia, Puerto Deseado y Puerto San Julián (Provincia de Santa Cruz, Argentina. Tres sitios de muestreo afectados diferencialmente por la intervención humana fueron seleccionados en cada localidad. En las áreas urbanas, las especies exóticas Calliphora vicina (Robineau-Desvoidy y Phaenicia sericata (Meigen fueron dominantes. Por el contrario, las nativas Compsomyiops fulvicrura (Robineau-Desvoidy y Sarconesia chlorogaster (Wiedemann predominaron tanto en áreas inhabitadas como en aquellas con bajo impacto humano. En los cebos utilizados para las capturas, se observó mayor proporción de hembras en todas las especies, excepto Sarconesia chlorogaster que mostró mayor proporción de machos.

  19. Thermophysical Properties of a Chromium Nickel Molybdenum Steel in the Solid and Liquid Phases

    Science.gov (United States)

    Wilthan, B.; Reschab, H.; Tanzer, R.; Schützenhöfer, W.; Pottlacher, Gernot

    2008-02-01

    Numerical simulation of vacuum arc re-melting, pressurized or protective electro-slag re-melting, and ingot casting have become quite important in the metal industry. However, a major drawback of these simulation techniques is the lack of accurate thermophysical properties for temperatures above 1,500 K. Heat capacity, heat of fusion, density, and thermal conductivity are important input parameters for the heat transfer equation. Since, direct measurements of thermal conductivity of alloys in the liquid state are almost impossible, its estimation from electrical conductivity using the Wiedemann Franz law is very useful. The afore-mentioned thermophysical properties of several steels are investigated within the context of an ongoing project. Here, we present a full set of thermophysical data for the chromium nickel molybdenum steel meeting the standard DIN 1.4435 (X2CrNiMo18-14-3); these values will be used by our partner to simulate various re-melting and solidification processes. Wire-shaped samples of the steel are resistively volume-heated, as part of a fast capacitor discharge circuit. Time-resolved measurements with sub-μs resolution of current through the specimen are performed with a Pearson probe. The voltage drop across the specimen is measured with knife-edge contacts and ohmic voltage dividers, the temperature of the sample with a pyrometer, and the volumetric expansion of the wire with a fast acting CCD camera. These measurements enable the heat of fusion, the heat capacity, and the electrical resistivity to be determined as a function of temperature in the solid and liquid phases. The thermal conductivity and thermal diffusivity are estimated via the Wiedemann Franz law.

  20. Regional Suppression of Bactrocera Fruit Flies (Diptera: Tephritidae in the Pacific through Biological Control and Prospects for Future Introductions into Other Areas of the World

    Directory of Open Access Journals (Sweden)

    Roger I. Vargas

    2012-08-01

    Full Text Available Bactrocera fruit fly species are economically important throughout the Pacific. The USDA, ARS U.S. Pacific Basin Agricultural Research Center has been a world leader in promoting biological control of Bactrocera spp. that includes classical, augmentative, conservation and IPM approaches. In Hawaii, establishment of Bactrocera cucurbitae (Coquillett in 1895 resulted in the introduction of the most successful parasitoid, Psyttalia fletcheri (Silvestri; similarly, establishment of Bactrocera dorsalis (Hendel in 1945 resulted in the introduction of 32 natural enemies of which Fopius arisanus (Sonan, Diachasmimorpha longicaudata (Ashmead and Fopius vandenboschi (Fullaway were most successful. Hawaii has also been a source of parasitoids for fruit fly control throughout the Pacific region including Australia, Pacific Island Nations, Central and South America, not only for Bactrocera spp. but also for Ceratitis and Anastrepha spp. Most recently, in 2002, F. arisanus was introduced into French Polynesia where B. dorsalis had invaded in 1996. Establishment of D. longicaudata into the new world has been important to augmentative biological control releases against Anastrepha spp. With the rapid expansion of airline travel and global trade there has been an alarming spread of Bactrocera spp. into new areas of the world (i.e., South America and Africa. Results of studies in Hawaii and French Polynesia, support parasitoid introductions into South America and Africa, where B. carambolae and B. invadens, respectively, have become established. In addition, P. fletcheri is a candidate for biological control of B. cucurbitae in Africa. We review past and more