梨黄粉蚜属同翅目根瘤蚜科，俗名黄粉虫。寄主为梨树，是一种为害梨树枝干和果实的蚜虫。该虫在我市一年发生５～１０代，以卵在树皮裂缝及旧果台裂缝内越冬，梨树开花期为卵孵化盛期，成虫寿命长，卵、若虫发育快，世代重叠严重，此虫喜阴怕光，对套袋鸭梨危害尤其严重，... Pear yellow powder aphid Homoptera Aphididae, common name Tenebrio. The host is a pear tree, which is a kind of aphids that damage the stems and fruits of pear trees. The insects occur in our city for 5 to 10 generations a year, with eggs in the bark cracks and cracks in the old fruit stage wintering pear flowering stage for the peak of egg hatching, adult longevity, eggs, nymphs develop rapidly, generations overlap serious , This insects Yin afraid of light, especially harmful to the bagged pear, ...