桃小食心虫是山楂的主要蛀果害虫之一。我场在1977至1979年期间,好果率仅40-60%.从1980年开始,我们对桃小食心虫,采取了药剂人工相结合的防治方法,降低了虫口密度,使好果率逐年上升,今年达96%以上。具体做法是: 一、树下防治:根据我们观察的桃小食心虫越冬习性,于5月上中旬在树 Peach mungbean beetle is one of the main fruit pests of hawthorn. I field in the period from 1977 to 1979, the good fruit rate is only 40-60%. Since 1980, we have to Peach Moth, the combination of pesticides to prevent and control methods to reduce the population density, the good fruit rate increased year by year This year, more than 96%. The specific approach is: First, the control of the tree: According to our observation Peach moth overwintering habit, in mid-May on the tree