桃小食心虫又名桃蛀果蛾,可危害苹果、梨、枣、山楂、桃、李、杏、海棠、槟沙果等多种果树,是对我国北方果区果树危害最严重的害虫之一。桃小食心虫在山西省河津市1年发生1代～2代,老熟幼虫在土壤中作茧越冬,来年5月下旬,当平均土温在19℃以上、土壤含水量在10％以上时,越冬幼虫便陆续出土。根据桃小食心虫危害状况及出土情况,要认 Peach mung bean, also known as peach moth, can harm many fruit trees such as apple, pear, date, hawthorn, peach, plum, apricot, begonia and panga and is one of the most harmful pests to fruit trees in north China . Peach mungbean worm in Hejin City, Shanxi Province, 1 generation to 2 generations a year, mature larvae overwinter in the soil for cocoon, the coming year in late May, when the average soil temperature above 19 ℃, the soil moisture content of 10% or more, Overwintering larvae will gradually unearthed. According to the peach moth harm and unearthed situation, to recognize