<正>测定不同配比的氯氰菊酯（Ｃｙｐｅｒｍｅｔｈｒｉｎ）与丙硫磷（Ｐｒｏｔｈｉｏｆｏｓ）复配制剂（简称氯丙制剂）对褐刺蛾（Ｓｅｔｏｒａｐｏｓｔｏｒｎａｔａ）和马尾松毛虫（Ｄｅｎｄｒｏｌｉｍｕｓｐｕｎｃｔａｔｕｓ）幼虫的触杀毒力、共毒系数和增效配比，加工成不同比例的氯丙复合乳油，对两种供试昆虫进行了防治效果检验。结果表明，以有效成分间１∶７的比例配制的氯丙复剂增效明显、成本较低，具有较理想的防治效果。

This paper measured the taching toxicities of the mixture information of Cypermethrin and Prothiofos against Setora postornata and Dendrolimus punctatus, picked out the better mixture information on the base of calculating their cotoxicity ratios, and controlled two kinds of the above mentioned insects by using the corresponding mixture emulsifiable concentrates and investigated the effects. The results showed that the mixture information with the ratio of 1 to 7 between Cypermethrin and Prothiofos had an obvious synergistic action, a lower cost and a good controlling effect on two kinds of insects in the field. 