卷叶蛾类(远东卷叶蛾、褐卷叶蛾、黄斑卷叶蛾等)是我省果树主要害虫类,不仅危害苹果,也危害桃、梨、杏、海棠等,严重影响果品产量和质量的提高。近年来我们利用松毛虫赤眼蜂(Tri-chogramma dendrdimi)防治苹果树上的卷叶蛾类,取得良好效果。经大面积 Leaf roller moths (Far East leaf roller, Roller leaf moth, macular leaf roll moth, etc.) are the main pests of fruit trees in our province, not only endanger apples, but also endanger peach, pear, apricot, crabapple, which seriously affect the yield and quality of fruit. In recent years, we use the Trichogramma Trichogramma (Tri-chogramma dendrdimi) to control apple leaf roller moths, and achieved good results. After a large area