中国科学院昆虫研究所对土农药在防治虫害方面进行了测定研究。用作测定土农药的害虫是尖音库蚊幼虫,家蝇及粘虫。首先把尖音库蚊幼虫用水浸及酒精浓缩二种办法来初筛411种土农药,再选其中效力较高的土农药用家蝇及粘虫继续测定它们的相对毒效,选其中重要土 Institute of Entomology, Chinese Academy of Sciences on soil pesticides in the prevention and control of pests were measured. Pests used for the determination of soil pesticides are Culex pipiens, housefly and armyworm. First, the Culex pipiens pallens larvae were immersed in water and alcohol concentration of two ways to initial screening of 411 kinds of soil pesticides, re-election of which more effective soil pesticides Musca domestica and armyworms continue to determine their relative toxic effects, select one of the important soil