桃小食心虫(Carposina niponensis W.)是为害山楂果实的重要害虫之一,我省山楂“桃小”普遍发生较重,据我们1982～1983年在盖县、营口县、海城、鞍山郊区、辽阳县等地调查,虫果率一般为50～60％,严重园达90％以上,被害果充满虫粪,失去食用价值。因此,防治“桃小”工作是山楂生产中的重要一环。 Carposina niponensis W. is one of the most important pests to hawthorn fruit. Hawthorn “peach” in our province is generally heavier. According to our 1982-1983 counties in Gaixian, Yingkou, Haicheng and Anshan suburbs, Liaoyang County and other places survey, fruit rate is generally 50 to 60%, serious Park up to 90%, the victim fruit full of insect manure, loss of food value. Therefore, the prevention and control of “small peach” work is an important part of hawthorn production.