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采用点滴法分别测定了我省临海市家蝇对溴氰菊酯、二氯苯醚菊酯、敌敌畏、三氯杀虫酯、仲丁威等5种杀虫剂的抗性。测定结果与1981～1983年我省家蝇抗性本底调查对相比较,家蝇对溴氰菊酯抗性提高了21.429倍,对二氯苯醚菊酯抗性提高了5倍,对敌敌畏提高了4.264倍。家蝇对以上3种杀虫剂均产生了较高的抗性。三氯杀虫酯抗性为1.0169倍,抗性基本持平。仲丁威抗性,本次测得LD_(50)(μg/蝇)68.685,说明在小剂量使用时对家蝇没有杀灭作用。
The resistance of housefly to five insecticides, deltamethrin, permethrin, dichlorvos, trichloro-insecticide and sec-butyl Dianfen, was determined by using the drip method. Compared with the survey of domestic flies in 1981 ~ 1983 in our province, the results showed that the resistance of housefly to deltamethrin increased 21.429 times and the resistance to permethrin increased fivefold. 4.264 times increase. Musca domestica produced higher resistance to the above three insecticides. Trichloro-insecticide resistance was 1.0169 times, resistance basically the same. Ding Dingwei resistance, the measured LD_ (50) (μg / fly) 68.685, indicating that the use of small doses of housefly did not kill.