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桃潜叶蛾在平谷县以成虫越冬,1a发生6代。成虫有多次交尾习性,趋光性强,迁移能力较强。幼虫可为害桃、杏、李及榆叶梅等叶片,幼虫天敌优势种为姬小蜂,寄生率可达36.6%。叶片受害后,光合强度降低20.8%,产量降低18.3%。生产上,5月下旬桃潜叶蛾性诱剂诱蛾高峰日,用25%灭幼脲Ⅲ号悬浮剂1500~2000倍液防治;8月中下旬,性诱剂诱蛾激增日开始调查虫(卵)叶率,超过5%时,用25%灭幼脲Ⅲ号悬浮剂1500~2000倍液,加80%敌敌畏乳油1000倍液或5%高效氯氰菊酯乳油1500倍液防治,好叶率可达95%以上。
Peach leaf miner in Pinggu County to overwinter adult, 1a generation 6 generations. Adults have multiple mating habits, phototropism, migration ability. The larvae can be harmful to peach, apricot, plum and elm leaf and other leaves, the dominant species of larvae are Ji wereps, the parasitism rate up to 36.6%. After the leaves were damaged, the photosynthetic intensity decreased by 20.8% and the yield decreased by 18.3%. Production, late May peach leaf moth sex attractant moth peak day, with 25% of floxuron Ⅲ suspension 1500 to 2000 times the liquid control; in late August, sex attractant moths began to investigate the surge day (Egg) leaf rate, more than 5%, with 25% of the MB # suspension of 1500 to 2000 times, plus 80% dichlorvos EC 1000 or 5% beta-cypermethrin 1500 times the prevention and treatment of good leaf rate Up to 95%.