梨绵粉蚧属同翅目粉蚧科,俗称苹果绵粉蚧、栎树绵粉蚧。国内仅分布于新疆库尔勒和克拉玛依市。危害苹果、梨、李、沙果等蔷薇科的乔灌木。在管理较差、密植郁蔽的香梨园发生。一、危害状梨绵粉蚧以若虫和雌虫成虫吸食嫩芽、嫩叶、果实、枝干及根部的汁液。危害嫩枝和根部,被害处常肿胀,可削弱树势,严重时会造成树皮纵裂而枯死;喜荫蔽,一般隐藏在枝干翘皮下、伤 Pear Melastoma is Homoptera Mealyzia Division, commonly known as apple mealybugs, oak tree mealybugs. Domestic only distributed in Xinjiang Korla and Karamay City. Harms apples, pears, plums, sago etc Rosaceae shrubs. Occurred in poorly managed, dense and fragrant pear garden. First, the harm Pear mealybug to nymphs and female adults eat young buds, leaves, fruits, stems and roots of the juice. Endanger the branches and roots, the victims often swell, can weaken the tree vigor, serious bark caused by longitudinal rupture and dead; Hi shade, generally hidden in the branches and stems of the skin, wounds