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桃小食心虫是我国北方果区分布最广,为害最重的蛇果害虫,其幼虫可以蛀食苹果、梨、桃、枣、杏、山楂等多种果实,严重影响果品的产量和质量。 这种虫一年发生1～2代,8月上旬前脱果化蛹的幼虫,当年可以发生第二代。8月中旬以后脱果的不会发生第二代,所以第二代幼虫发生不整齐,数量也少。桃小食心虫的老熟脱果幼虫,一般是在树干周围45厘米左右的
Peach mungbean is the most widely distributed and hardest-hit snake fruit pest in northern China. Its larvae can eat many fruits such as apples, pears, peaches, jujube, apricot and hawthorn and seriously affect the yield and quality of fruit products. This pest occurs 1 to 2 generations a year, in early August before the degeneration of pupa larvae, when the second generation can occur. The second generation will not take off after mid-August, so the second generation larvae are not regular, the number is small. Peach Mung bean insects mature off fruit larvae, usually about 45 centimeters around the trunk