中国梨木虱是我国梨树上的重要害虫,以成虫和若虫为害嫩芽、嫩梢和叶片。若虫有隐蔽性。并分泌粘液覆盖虫体,给防治带来一定困难,还污染叶、果,容易引起大量落叶和降低果品质量。 以往防治梨木虱使用对硫磷和氧化乐果虽有一定效果,但在受害重的梨园难以控制为害。近几年选出一批防治梨木虱的高效农药,用于生产取得很好的防治效果。 防治梨木虱的有利时期是早春越冬成虫出蛰上 Pear lice in China is an important pest on pears in our country, with adult and nymph infertility buds, shoots and leaves. Nymphs are hidden. And secretion of mucus covered worms, prevention and treatment to bring some difficulties, but also pollution of leaves, fruits, easily lead to a large number of leaves and reduce fruit quality. In the past, the prevention and control of pear psylla using parathion and omethoate although a certain effect, but difficult to control the victims pear garden damage. In recent years, a group of high-efficiency pesticides for preventing and controlling pear psylla was selected for good control effect. Prevention and control of pear psyllid is a favorable period early winter wintering adults