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作 者:王文志[1] 李书建[2] 刘春龙[2] 张曙光[1] 孟凤英[1]
机构地区:[1]安阳市疾病预防控制中心,河南郑州450016 [2]河南省疾病预防控制中心,河南郑州450016
出 处:《中华卫生杀虫药械》2007年第2期130-131,共2页Chinese Journal of Hygienic Insecticides and Equipments
摘 要:目的了解安阳市当前家蝇抗性变化程度,指导全市科学合理地使用杀虫剂,提高杀灭效果。方法将待测药剂根据以往测定的抗性结果按递减倍数配制成6~7个浓度组。用微量点滴器在每个测试蝇的背部滴药1μl,每个浓度组用蝇20只。正常饲养观察24h,记录死亡情况。结果安阳市家蝇对DDVP、溴氰菊酯、氯氰菊酯、氯菊酯的LC。分别是0.7837,0.1014,0.2058,0.1676mg/m^3。结论与全国标准敏感品系相比,相对抗性分别为68.7,169,45.7,28.9。安阳市家蝇对上述4种药物均已产生了不同程度的抗性,其中对溴氰菊酯抗性最高。Objective To get know the resistance status of Musca domestica,and give guidance for using insecti- cides scientifically so as to improve the killing efficacy. Methods Separating the insecticides into 6 - 7 groups according to their former resistance results. The back of Musca domestica was dripped insecticide for 1 μl with microdripper. There were 20 Musca domestica at each group. Under normal breeding condition, observing for 24 hours and writing down mortality status. Results The LC50 of Musca domestica to DDVP,deltamethrin, cypermethrin and permetrin were 0. 783 7,0. 101 4,0. 205 8 and 0. 167 6 mg/m^3 respectively. Conclusion In contrast with national standard sensitive strain, the relative resistance of Musca domestica to DDVP, dehamethrin, cypermethrin and permethrin were 68.7,169,45.7 and 28.9 respectively. Musca domestica in Anyang city had different degree of resist- ance to the above mentioned insecticides, and had the highest resistance to dehamethrin.
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