中国媒介生物学及控制杂志

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淡色库蚊对溴氰菊酯抗性株的选育

朱礼华1; 朱礼华2; 赵彤言2; 董言德2; 于虹2; 陆宝麟2   

  1. 1山西省卫生防疫站 太原030012; 2军事医学科学院微生物流行病研究所
  • 出版日期:1998-06-20 发布日期:1998-06-20

Selection of the Resistant Strains of Culex pipiens pallens to Deltamethrin

Chen Jing-xia*; Zhu Li-hua; Zhao Tong-yan; et al   

  1. Institute of Microbiology and Epidemiology,Beijing 100071
  • Online:1998-06-20 Published:1998-06-20

摘要: 目的:在实验室条件下选育拟除虫菊酯抗性品系,了解抗性产生、发展的规律,为抗性机理研究提供模型,为防制工作提供理论依据。方法:采用浸液法,分别用溴氰菊酯LC50、LC95剂量对淡色库蚊Ⅳ龄幼虫用药筛选。结果:用LC50剂量筛选,抗性的发展较用LC95剂量筛选快。结论:对敏感品系高剂量的处理可以延缓抗性发展。

关键词: 淡色库蚊, 溴氰菊酯, 抗药性, 选育

Abstract: The resistant strains of Culex pipiens pallens to Deltamethrin were selected for 5 generations with different dose (LC50 dose,LC95 dose).Two resistant strians were obtained,namely R50 strain and R95 strain.In the former,LC50 rose steadily from 0.24ppb to 12.16ppb(51 fold).In the latter,LC50 reached 7.18ppb from 0.24ppb (27 fold).It is found that resistance to Deltamethrin of the susceptible strain increase quickly when it was selected with Deltamethrin,and it was also found that it's development of resistance was delayed when the susceptible strain was selected with high dose.