芦毒蛾(Laelia coenosa candida)是洞庭湖区为害荻芦的食叶性大害虫,常年发生面积几万至十几万亩。1985和1986年据岳阳、沅江等县统计,该虫发生面积超过40万亩,严重发生时几天之内可将叶片全部食光,导致减产2成左右。为探索芦毒蛾的生物防治方法,多年来,我们对其天敌进行了调查 Desmodium moth (Laelia coenosa candida) is a pests in the Dongting Lake area diarrhea leafy pests, perennial area of ​​tens of thousands to ten million mu. According to the statistics of Yueyang and Yuanjiang counties in 1985 and 1986, the pest occurred in an area of ​​more than 400,000 mu. In severe cases, all the leaves can be eaten within a few days, resulting in about 20% reduction in production. For the purpose of exploring the biological control methods of the leaf moth, we investigated its natural enemies for many years