Systematization of comprehensive prevention and extermination techniques against harmful insect groups causing citrus disease. 17 - 1 Establishment of comprehensive prevention and extermination system against harmful insect groups causing citrus disease. 2) Establishment of prevention and extermination method against flying harmful insects with light-reflective mulch sheet. a) On-site-verification of systematic prevention and extermination for saving agricultural chemicals by means of light-reflective mulch-sheet.A)Effect of light-reflective mulch-sheet against Scitothrips dorsalis.
Establishment of protected soil-based nutiriculture technology for cucumber and tomato. (3) Establishment of suitable light distribution characteristics management technology. 2) Development of fertilizer application method suitable for training method of tomato.