The extract by petroleum ether has the slowest insecticidal effect, but the correct mortality of A. indiscriminate on the fifth day after the treatment could also reach 64.59 percent.

• 石油醚提取物的毒杀效果最慢，但处理第5天后同安钮夜蛾的校正死亡率也能达到64.；59%25。