梨木虱的防治方法答河北省昌黎县部分读者蜜梨是昌黎的特产，但蜜梨抗虫害能力差，以致在管理粗放的情况下造成近年梨木虱的严重危害。现将防治方法介绍如下：①早春越冬成虫出蛰前（梨芽萌动前）刮老翘皮，同时彻底清除园内落叶、杂草、消灭越冬成虫；②梨花序分离期喷对... Pear lice prevention and treatment methods A Changli County, Hebei Province, some readers Pear is a specialty of Changli, Pear Insect Pest resistance, resulting in extensive management in recent years caused serious harm pear psylla. Now the prevention and treatment methods are described as follows: ① early spring wintering insect pest (pear bud germination before) scraping the old Alice, while the thorough removal of garden deciduous, weeds, eliminate overwintering adult;