桃潜叶蛾(Lyonetia clerklla L.)是大连地区危害桃树叶片的重要害虫。在大连地区,受害树8月份开始落叶,9月份基本落光,严重影响了桃树的生长发育和抗寒能力。为此,我们于1985年至1991年,对桃潜叶蛾进行了观察和防治研究,现将结果简介如下:一、发生规律和习性1.发生规律:桃潜叶蛾每年发生五代。过去记载此虫以蛹越冬,而我们观察,在大连地区是以冬 Leaf peach leafhopper (Lyonetia clerklla L.) is an important pest of peach leaf damage in Dalian. In Dalian, the victim trees began to deciduous in August and dropped off in September, seriously affecting the growth and cold resistance of peach trees. To this end, we from 1985 to 1991, the peach leaf moth were observed and prevention and control studies, the results are summarized as follows: First, the occurrence of laws and habits 1. The occurrence of law: peach leaf moth occurs five generations each year. In the past it was documented that this insect overwintered with pupae, and we observe that it is winter in Dalian