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在室内条件下采用点滴法分别测定了几种杀虫剂对棉蚜和粘虫的毒力。供试杀虫剂对棉蚜的毒性大小依次为：氰戊菊酯＞甲基对硫磷＞丁硫克百威＞灭多威＞硫双灭多威＞辛硫磷＞叶蝉散；对粘虫的毒性大小是：灭多威＞氰戊菊酯＞甲氰菊酯＞辛硫磷＞丁硫克百威＞甲基对硫磷＞叶蝉散。从毒力和价格因素出发，评价了各杀虫剂的应用指数，提出了防治蚜虫和粘虫的最佳农药品种。
Toxicity of several insecticides to cotton aphid and armyworm were determined by instillation method under indoor conditions. The toxicities of the tested pesticides to cotton aphid were as follows: Fenvalerate> Methyl parathion> Butylatedithiobarbital> Methomyl> Thiabendazole> Phoxim> Phylloxera; The toxicity of the armyworm is: methomyl> fenvalerate> fenpropathrin> phoxim> carbosulfan> methyl parathion> leafhopper powder. Based on the factors of virulence and price, the application index of each pesticide was evaluated, and the best pesticide variety for controlling aphids and armyworms was proposed.