康氏粉蚧 ( Pseudococcus　 Comstocki)属同翅目粉蚧科。近年来 ,套袋苹果因其发生渐趋严重 ,虫果率一般在 5%左右 ,重者达 10 %～ 2 0 % ,成为优质高档果品生产的制约因素之一。究其原因 ,一是由于苹果园化防频率高 ,大量广谱高效杀虫剂的连续应用 ,天敌数量严重减少 ,使果园 Pseudococcus Comstocki belongs to the family Homoptera. In recent years, bagged apples have become more and more serious due to their occurrence. Insect fruit rates are generally around 5% and 10% ~ 20% in weight, making them one of the most limiting factors in producing high quality and high quality fruit products. The reason, first, due to anti-apple orchard high anti-frequency, a large number of broad-spectrum insecticides and continuous application of a serious reduction in the number of natural enemies, so that the orchard