桃小食心虫是苹果的主要害虫,其幼虫钻蛀果实,不但影响产量,而且降低果品品质。桃小食心虫一年发生2代,第1代卵盛期在6月末至7月上旬,第2代卵盛期在7月未至8月上旬。孵化后的幼虫先在果面爬行数十分钟或数小时,寻找合适部位,然后蛀入果实危害。可见,在幼虫蛀入果实前喷药 Peach mungbean is the main pest of apple, the larvae moth-bore fruit, not only affect the yield, but also reduce fruit quality. Peach mung bean worm occurs two generations a year, the first generation of egg peak in late June to early July, the second generation of egg peak in July not yet reached early August. After hatching, the larvae first crawl in the fruit for tens of minutes or hours, looking for a suitable site, then bore into the fruit hazards. Visible, before the larvae eaten into the fruit spray