苦参碱防治杨树美国白蛾药效调研

Pharmacodynamic test of matrine in controlling Poplar Hyphantria cunea larvae

应用植物源杀虫剂1.3%苦参碱1500倍液,在杨树上防治美国白蛾幼虫,死亡率达到97.51%,1000倍液幼虫死亡率达99.58%,进行无人机喷药防治,用量600g/hm^(2),美国白蛾幼虫死亡率达到98.90%;用量750g/hm^(2),美国白蛾幼虫死亡率达99.13%。

The 1500 times dilution of 1.3%matrine,a botanical insecticide,was used to control the Hyphantria cunea larvae on poplar trees,and the mortality rate reached 97.51%;using 1000 times dilution,the mortality rate reached 99.58%.Using 1.3%matrine to spray insecticide on UAV,the mortality of Hyphantria cunea larvae reached 98.90%at the dosage of 600g/hm^(2);the mortality of Hyphantria cunea larvae reached 99.13%at the dosage of 750g/hm^(2).