苹果巢蛾Hponomeuta malinella Zeller俗称巢虫。陇东果树重要的食叶害虫，优势种，发生普遍，危害猖獗，损失颇重。现将1985~1989年对该虫观察作一报道。 1 危害 1.1 苹果巢蛾主要危害苹果，也危害沙果、山楂。幼虫在新梢上吐丝结网，数10头群栖网内，取食新芽、嫩叶，吃光后 Apple nest moth Hponomeuta malinella Zeller commonly known as nest insects. Longdong important fruit leaf pests, the dominant species, the occurrence of widespread, dangerous rampant, the loss is quite heavy. Now from 1985 to 1989 for the observation of the worm made a report. 1 hazards 1.1 Apple nest moth major harm to apples, but also endanger sand, hawthorn. Larvae in the shoots spit nets, the number 10 group habitat nets, feeding sprouts, young leaves, eating