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目的调查商丘市区卫生杀虫剂使用情况,探讨其与当地淡色库蚊、家蝇抗药性的相关性,为治理病媒生物抗药性提供科学依据。方法采用现场调查市售及病媒生物防治专业机构使用的卫生杀虫剂状况;浸渍法测定淡色库蚊,点滴法测定家蝇对杀虫剂的敏感性。结果共调查208种次的卫生杀虫剂,其中杀虫气雾剂124种次、蚊香和电热蚊香77种次、其他7种次;一元制剂占25.00%、二元或三元制剂占75.00%;杀虫有效成分均含有拟除虫菊酯,以胺菊酯为主,占60.26%。淡色库蚊对高效氯氰菊酯、双硫磷的抗药性测定结果,均表现为低抗水平;家蝇对高效氯氰菊酯、氯菊酯、溴氰菊酯表现为高抗,对敌敌畏表现为低抗。结论商丘市区淡色库蚊和家蝇抗药性的产生与农药使用有关,科学合理使用卫生杀虫剂才能延缓蚊蝇抗药性的产生。
Objective To investigate the use of sanitation insecticides in Shangqiu city and investigate the relativity with the resistance of Culex pipiens pallens and Musca domestica in order to provide a scientific basis for the treatment of vector resistance. Methods The field pesticides used in commercial and vector biological control institutions were investigated on site. The Culex pipiens pallens were determined by immersion method and the insecticide was determined by spotting method. Results A total of 208 kinds of health insecticides were investigated, of which 124 kinds were insecticidal aerosol, 77 kinds were mosquito-repellent incense and electric mosquito, the others were 7 times; monogenic preparations accounted for 25.00%, and binary or ternary preparations accounted for 75.00% Insecticidal active ingredients contain pyrethroids, mainly tetramethrin, accounting for 60.26%. Culex pipiens pallens resistance to beta-cypermethrin, and diphtheria were all tested as low resistance levels. Musca domestica exhibited high resistance to beta-cypermethrin, permethrin, deltamethrin, and low resistance to dichlorvos. Conclusion The resistance of Culex pipiens pallens and housefly in Shangqiu city is related to the use of pesticides. It is reasonable and scientific to use sanitation insecticides to delay the emergence of mosquito resistance.