桃小食心虫,是我县嵩口镇李果区近年来新发现的重要蛀果害虫,据该镇1989年(重发生年)调查,不同程度发生面积达1500余亩,蛀果率23.7～62.5％,最高达96.1％。两年来,我们对其在李树上主要的生活习性、发生规律进行了调查研究,在桃树上开展了药剂防治试验,开展较大面积李园防治示范,取得了较显著的效果。我们选择4年生已结果的红尾桃树9株(已发生虫 Peach small heart worms, is the county Li Song Song Li Zhen important newly discovered fruit pests in recent years, according to the town in 1989 (re-birth year) survey, occurred in varying degrees, an area of ​​more than 1,500 acres, bore fruit rate 23.7 ~ 62.5 %, Up to 96.1%. In the past two years, we conducted a survey on the main habits and laws of their lives in Li Shu. We carried out experiments on the prevention and control of pesticides on peach trees and carried out large-scale demonstration of prevention and control of Liyuan Park. We achieved remarkable results. We chose 9-year-old red-tailed peach trees 9 (worm has occurred