1974年以后,我场逐年发生桃吉丁虫危害,到1976年全园已有40％以上的桃树严重受害。十多年生大树,因该虫为害,致使枝条残缺不全。同时梨小食心虫也不断上升,晚熟品种虫果率达70％以上。过去我们喷布滴滴畏、杀螟松,还采取了摇树震虫,涂抹 Since 1974, the occurrence of Tajibinchin pests in our field has been on a yearly basis. By 1976, more than 40% of the peach trees had been seriously damaged in the whole garden. Ten years old tree, because of the pest damage, resulting in incomplete branches. At the same time Pear Mungbean insects are also rising, late maturing varieties of fruit rate of 70% or more. In the past we dunched david, fenitrothion, also took shake tree worms, smeared