以二化螟、褐稻虱、粘虫为试虫 ,采用原药丙酮溶液昆虫背板点滴法 ,测定了 33个杀虫剂复配组合的联合毒力。结果表明 ,其中具增效、相加和拮抗作用的配组分别为 10、12和 11个 ,复配后联合毒力趋势 ,是拟除虫菊酯类与有机磷类和沙蚕毒素类复配以增效作用为主 ,有机磷类之间的复配以相加作用为主 ,有机磷与沙蚕毒素类复配以拮抗作用为主。研究结果可作为农药混用或混剂研制开发的参考 With the Sesamia inferens, brown planthopper, armyworm as the test insects, the original reagent acetone solution insect back plate drip method, the determination of the combination of 33 insecticides combined virulence. The results showed that there were 10, 12 and 11 mice with synergistic, additive and antagonistic effects, respectively. Combined with virulence trends, the combination of pyrethroid and organophosphate and nereistoxin increased Effect mainly based on the additive effect between the organic phosphorus, the organic phosphorus and Nereis toxin mainly antagonistic effect. The results can be used as a reference for the research and development of pesticide mixture or mixture