梨木虱是当前梨的主要害虫之一 ,防治难度大。生产中由于忽视了人工防治 ,用药时机和种类不当 ,保护天敌不力等 ,造成不同程度的危害。试验证明 ,对梨木虱应采取人工防治、化学防治和生物防治相结合的方法。抓住越冬成虫出蛰盛期以及第一代成虫和若虫盛发期喷药。防治成虫的有效药剂为 1 0 0 0倍80 %敌敌畏 +2 50 0倍 2 .5%功夫菊酯 ,或 1 0 0 0倍 80 %敌敌畏 +1 50 0倍 4 0 %水胺硫磷。防治若虫可优先选用1 .8%灭虫灵、1 .8%阿维菌素和 1 .8%集琦虫螨光 50 0 0倍液 ,其防治效果均在 96%以上 Pear lice is one of the major pests in pear and it is very difficult to control. Production due to neglect of artificial control, medication timing and type of improper protection of natural enemies, resulting in varying degrees of harm. Experiments show that pear psylla should take artificial control, chemical control and biological control methods combined. To seize the winter wintering sturgeon and the first generation of adults and nymphs Sheng spraying period. Effective agents for controlling adults are 1000 times 80% dichlorvos + 250.0 times 2.5% cypermethrin, or 100% 80% dichlorvos +150 0 times 40% acetoside. Preventing and controlling nymphs can be preferentially used 1.8% pest control, 1.8% abamectin and 1.8% garcinia mite light 500 times, the control effect is above 96%