梨木虱 (PsyllachinensisYangetLi.) ,是严重危害梨树的害虫 ,在唐河 1年发生 5代 ,以成虫在树皮缝、杂草、落叶、土缝处越冬。成虫、若虫期采用改善树体通风透光条件、冬季清园、药剂涂干、保护天敌和药剂防治等综合防治技术 ,死亡率达 95%以上。 Pest (Psyllachinensis YangetLi.) Is a pest that seriously damages the pear tree. Five generations occurred in Tanghe River in one year, and the adults overwintered in bark joints, weeds, deciduous leaves and soil seams. Adults and nymphs adopt comprehensive prevention and control techniques such as improving the ventilation and light conditions of trees, clearing in the clear garden in winter, applying pesticides, protecting natural enemies and preventing and curing diseases. The mortality rate is over 95%.