3种农药制剂对桃蚜的室内毒力测定

摘要

The laboratory toxicity of three pesticide formulations to Myzs persicae was determined with leaf dips method. The results showed that the toxicity of Fenvalerate · malathion EC (20% ) is the strongest (the LCW is 0.792 5 mg/L), then followed by fenvalerate · malathion EC (10% ) is imidacloprid WP (the LC50 is 10.008 1 mg/L) and abamectin · Bt WP (0.1 % ) ( the LC50 is 279.405 8 mg/L).%采用浸渍法测定了3种农药制剂阿维·苏云菌WP、氰戊·马拉松EC和吡虫啉WP对桃蚜的室内毒力.结果表明,20％氰戊·马拉松EC的毒力最强,LC50为0.792 5 mg/L; 10％吡虫啉WP的毒力次之,LC50为10.008 1 mg/L;0.1％阿维·苏云菌WP的毒力最差,LC50为279.405 8 mg/L.