松阿扁叶蜂生物学特性及生物制剂防治技术

Bionomics of Acantholyda posticalis and its biological control techniques

松阿扁叶蜂在济南 1a发生 1代 ,以老熟幼虫在林内土壤中越冬 ,翌年 4月中旬成虫开始羽化出土 ,利用 1%绿色威雷Ⅱ号 2 0 0～ 30 0倍液地面喷雾防治出土成虫 ,具有省工、省事、省力、经济无污染的优点 ;5月中下旬幼虫孵化盛期 ,用 1%海正灭虫灵 5 0 0 0倍液和 0 5 %维多力 2 0 0 0倍液树上喷雾防治初孵幼虫 ,可获得良好的防治效果。

Acantholyda posticalis has one generation a year in Jinan,Shandong Province.It overwinters as mature larva in the soil and emerges in mid April the next year.Ground spraying of 1% green mine Ⅱ(abamectin) 200-300 times against the emerging adults is economic and pollution-free.In the hatching period spraying 1% Haizhengmiechongling (abamectin) (5 000) times or 0.5% Weiduoli (abamectin) 2 000 times against the larvae in trees had a good effect.