Chines Journal of Vector Biology and Control ›› 2016, Vol. 27 ›› Issue (5): 506-507.DOI: 10.11853/j.issn.1003.8280.2016.05.024

• Investigation • Previous Articles     Next Articles

A survey on susceptibility of Aedes albopictus larvae to four insecticides in some areas of Chongqing

TU Tao-tian1, JI Heng-qing1, FENG Shao-quan1, YANG Xue-fan1, HE Ya-ming1, LUO Chao2, RAN Zhen-wei2, LIU Chun-hua2, LIU Yi-ping3   

  1. 1 Chongqing Center for Disease Control and Prevention, Chongqing 400042, China;
    2 Wanzhou District Center for Disease Control and Prevention;
    3 Yuzhong District Center for Disease Control and Prevention
  • Received:2016-06-22 Online:2016-10-20 Published:2016-10-20

重庆市部分地区白纹伊蚊幼虫对4种杀虫剂的敏感性调查

涂涛田1, 季恒青1, 冯绍全1, 杨雪帆1, 何亚明1, 罗超2, 冉贞卫2, 刘纯华2, 刘义萍3   

  1. 1 重庆市疾病预防控制中心消毒与媒介生物控制所, 重庆 400042;
    2 重庆市万州区疾病预防控制中心, 重庆 404000;
    3 重庆市渝中区疾病预防控制中心, 重庆 400010
  • 通讯作者: 季恒青,Email:hengqingji@163.com
  • 作者简介:涂涛田,男,硕士,主管医师,主要从事病媒生物防制研究,Email:taotiantu@sina.cn

Abstract:

Objective To investigate the susceptibility of Aedes albopictus larvae to four insecticides in some areas of Chongqing. Methods To determine the median lethal concentration (LC50) of the field population of Ae. albopictus larvae of Yuzhong district and Wanzhou district located in the hinterland of the Three Gorges Reservoir, by immersing them with pesticide in 2014-2015. Results In comparison with the susceptible strain, the resistance ratios of Ae. albopictus larvae to beta-cypermethrin, deltamethrin, permethrin, and temephos were 7.59-, 4.50-, 9.88-, and 3.18-fold respectively in Yuzhong district, and 12.82-, 7.50-, 13.29-, and 2.00-fold respectively in Wanzhou. Conclusion Aedes albopictus larvae of Yuzhong had a low level resistance to beta-cypermethrin, deltamethrin, permethrin, and temephos; that of Wanzhou had a moderate resistance to beta-cypermethrin and permethrin, but a low level resistance to deltamethrin. Therefore, it is important to rotate pesticides and choose appropriate doses in mosquito control.

Key words: Aedes albopictus, Dipping method, Susceptibility, Insecticide

摘要:

目的 了解重庆市登革热传播媒介白纹伊蚊幼虫对常用杀虫剂的敏感性。方法 于2014-2015年,选择主城区的渝中区和位于三峡库区腹地的万州区作为监测点,采用浸渍法,测定白纹伊蚊幼虫野外种群的半数致死浓度。结果 与敏感品系试虫相比较,渝中区白纹伊蚊对高效氯氰菊酯、溴氰菊酯、氯菊酯和双硫磷的抗性倍数分别为7.59、4.50、9.88和3.18倍;万州区白纹伊蚊对高效氯氰菊酯、溴氰菊酯、氯菊酯和双硫磷的抗性倍数分别为12.82、7.50、13.29和2.00倍。结论 渝中区白纹伊蚊对高效氯氰菊酯、氯菊酯、溴氰菊酯和双硫磷均产生低度抗性,万州区白纹伊蚊对高效氯氰菊酯、氯菊酯产生中度抗性,对溴氰菊酯产生低度抗性。在实际防治中应注意交替使用、合理用药。

关键词: 白纹伊蚊, 浸渍法, 敏感性, 杀虫剂

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