梨木虱(Psylla pyrisuga Forster)是梨树上的重要害虫之一。以若虫刺吸为害梨树的芽、嫩梢、叶片、果实,并分泌大量蜜液,引起霉污病发生,造成落叶,严重影响梨树的生长和产量。近年来,梨木虱在山东中西部地区为害愈加严重,其发生与防治情况均出现新的变化,需要引起广大果农的重视。 Psylla pyrisuga Forster is one of the important pests on pear trees. To nymphs prick pear injury buds, tender shoots, leaves, fruits, and secretion of a large number of honey, causing mildew stains, causing deciduous, seriously affecting the growth and yield pear. In recent years, pear psylla in the central and western Shandong Province more serious damage, its occurrence and prevention of new changes have emerged, the need to attract the attention of the majority of farmers.