阿维菌素与Bt复配防治松毛虫试验

Control of Dendrolimus punctatus Walker with Mixture of Abamectin and Bt Insecticide

笔者报导阿维菌素不同含量与8000IU/mgBt的复配制剂防治松毛虫的室内外试验。结果表明:阿维菌素含量为0.1%的200倍、400倍,含量为0.3%的800倍,含量为0.5%的3200倍、6400倍分别进行喷雾防治松毛虫,药后7d,效果皆高达90.0%以上。从用药成本考虑,建议使用0.5%阿维菌素+8000IU/mgBt配方,浓度为3200倍。

Indoor and field tests of mixture of 8 000 IU/mg Bt insecticide with different contents of abamectin for control of D. punctatus Walker were reported by the authors. It showed that the control effects by 7 days after the spraying were all higher than 90.0% with different contents of abamectin and dilutions. By considering the cost of the pesticide and application, the authors recommended to use mixture of 8 000 IU/ mg Bt insecticide with 0.5% avermectins at dilution of 3 200X for control of D. punctatus Walker.