桃小食心虫(Carposina niponensisWalsingham)属鳞翅目蛀果蛾科,是苹果、梨、枣、桃、山楂的主要害虫之一。该虫在我区兴县、临县、柳林、石楼、交城、文水等6个红枣主产县均有发生危害,面积达15万亩。尤以兴县、临县、柳林较为严重,被害株率达50—60％,虫口密度为87头/株。被害枣失去了食用价值,大大降低了枣农的经济收入。解决桃小食心虫危害问题,已属红枣生产当务之急。因此,近4—5年来,我站在临县设固定病虫测报点,观察研究桃小食心虫在枣园的生活习性,并借助于性信 Carposina niponensis Walsingham belongs to the Lepidoptera moth family and is one of the major pests of apple, pear, jujube, peach and hawthorn. The insects in our county Xingxian, Linxian, Liulin, stone floor, Jiaocheng, Wenshui and other 6 jujube-producing counties have occurred harm, an area of ​​15 hectares. Especially in Xingxian, Linxian, Liulin is more serious, the victim strain rate of 50-60%, population density of 87 head / strain. The victim lost the food value, greatly reducing the economic income of jujube farmers. To solve the harm of peach moth worms, which is a top priority of jujube production. Therefore, in the past 4 to 5 years, I stood in Linxian County to set up a fixed point of pests and diseases survey and observe the peach moth’s life habits in jujube gardens, and with the help of sexual letters