论文部分内容阅读
了解和搞清当地家蝇对常见杀虫剂的抗药性水平和敏感性程度,掌握其本底资料、做好监督工作,为全面开展综合防制提供科学依据。本文就1986—1987年伊盟地区家蝇对γ—666、敌百虫、DDVP、溴氰菊酯、二氯苯醚菊酯敏感性和抗药性进行了调查讨论.其结果:全盟所辖八个旗(市),共抽查七个点,测得家蝇对敌百虫总抗性指数为5,081～28,395,比1982年平均增高了2.2倍,γ—666抗性指数在1,116～2,369之间,比82年平均高了1.36倍;DDVP KT_(50)在7.65分～22.4分钟之间,比82年平均增高1.97倍。溴氰菊酯 KT_(50)在5.33～10.9分之间,二氯苯醚菊酯 KT50在.26分～9.8分之间,均为敏感;溴氰菊酯 LD_(50)在0.0006732～0.0009468μg/蝇之间,平均值比国内正常品系高1.35倍,有耐药现象;二氯苯醚菊酯 LD_(50)在0.005662～0.006224μg/蝇之间,基本接近国内正常品系;DDVP LD_(50)在0.00707～0.0665μg/蝇之间,平均值比国内正常品系高3.2倍,有明显耐药性;从而表明,溴氰菊酯药物毒力最强,它是二氯苯醚菊酯7.2倍,DDVP 的45.4倍。
Understand and understand the local housefly resistance levels of common insecticides and the degree of sensitivity to master the background information, supervision, and provide a scientific basis for comprehensive and comprehensive prevention and control. In this paper, the susceptibility and drug resistance of house flies to γ-666, trichlorfon, DDVP, deltamethrin and permethrin in the Iraqi Union Region from 1986 to 1987 were investigated and discussed.The results are as follows: Eight flags (cities), a total of seven spot checks, measured housefly trichlorfon resistance index of 5,081 to 28,395, an increase of 2.2 times the average in 1982, γ-666 resistance index of 1,116 ~ 2,369 Which was 1.36 times higher than the average of 82 years. DDVP KT 50 was between 7.65 and 22.4 minutes, an average increase of 1.97 times over 82 years. Deltamethrin KT_ (50) was between 5.33 and 10.9, and permethrin KT50 was between .26 and 9.8, both were sensitive. LD_ (50) of deltamethrin was between 0.0006732 and 0.0009468 μg / Flies, the average value of which was 1.35 times higher than that of the normal domestic ones. The resistance of permethrin to fenvalerate was almost the same as that of the domestic normal strain LD_ (50) between 0.005662 and 0.006224 μg / ) Was 0.00707 ~ 0.0665μg / flies, the average value of 3.2 times higher than the domestic normal line, there was significant resistance; thus showing that deltamethrin drug toxicity is the strongest, it is Permethrin 7.2 times , 45.4 times DDVP.