Chinese Journal of Vector Biology and Control ›› 2022, Vol. 33 ›› Issue (1): 44-47.DOI: 10.11853/j.issn.1003.8280.2022.01.008

Special Issue: 登革热媒介伊蚊专项调查专题

• Special Investigation on Dengue Vectors Topics • Previous Articles     Next Articles

An investigation of the insecticide resistance of Aedes vector after emergency control of a dengue fever outbreak in Chongqing, China, 2019

TU Tao-tian1, XIAO Han-sen1, MENG Feng-xia2, LIU Qi-yong2, LIU Xiao-bo2, HE Ya-ming1, JI Heng-qing1   

  1. 1. Department of Disinfection and Vector Control, Chongqing Center for Disease Control and Prevention, Chongqing 400042, China;
    2. State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
  • Received:2021-10-12 Online:2022-02-20 Published:2022-02-17
  • Supported by:
    Special Project of Chinese Center for Disease Control and Prevention "Special investigation on dengue vectors Aedes"; Chongqing Medical Scientific Research Project (Joint project of Chongqing Health Commission and Science and Technology Bureau) (No. 2019MSXM078); Municipal Natural Science Foundation of Chongqing of China (No. cstc2021jcyj-msxmX1125)


涂涛田1, 肖汉森1, 孟凤霞2, 刘起勇2, 刘小波2, 何亚明1, 季恒青1   

  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. 中国疾病预防控制中心传染病预防控制所, 传染病预防控制国家重点实验室, 北京 102206
  • 通讯作者: 季恒青,
  • 作者简介:涂涛田,男,医学硕士,副主任医师,主要从事虫媒传染病等相关研究,
  • 基金资助:

Abstract: Objective To investigate the resistance of Aedes albopictus to commonly used insecticides, after control of a dengue fever outbreak in Chongqing, China, 2019, and to provide a basis for controlling mosquito-borne diseases including dengue fever and Aedes vector. Methods From May to October, 2020, Ae. albopictus mosquitoes were collected from parks or waste tire piles in 6 districts (counties) of Chongqing and were reared for 1-2 generations in laboratory, and the larval dipping method and the adult exposure tube method were used for insecticide resistance surveillance. Results Ae. albopictus larvae from each investigation site of Chongqing had varying degrees of sensitivity to commonly used insecticides, with a resistance ratio of 0.46-7.32. The resistance ratio was 0.46-4.92 for temephos and 0.82-7.32 for propoxur. Adult Ae. albopictus mosquitoes from each investigation site of Chongqing developed varying degrees of resistance to deltamethrin, permethrin, beta-cypermethrin, and lambda-cyhalothrin, with a 24-hour death rate of 5.88%-78.22%. The adult Ae. albopictus mosquitoes in the field of Wanzhou district developed suspected resistance to bendiocarb and fenitrothion, and those in the field of Dazu district developed suspected resistance to chlorpyrifos; the adult Ae. albopictus mosquitoes in the field of the remaining investigation sites were sensitive to propoxur, bendiocarb, malathion, fenitrothion, and chlorpyrifos. Conclusion Ae. albopictus adult mosquitoes from each investigation site of Chongqing develop resistance to pyrethroids, and Ae. albopictus larvae from some investigation sites develop a low level of resistance to temephos and propoxur. It is recommended to regularly monitor the resistance level and changing trend of Ae. albopictus and to select corresponding insecticide use strategies according to the insecticide resistance of Ae. albopictus at different developmental stages.

Key words: Aedes albopictus, Dengue fever, Insecticide resistance

摘要: 目的 了解重庆市2019年登革热暴发疫情控制后白纹伊蚊对常用卫生杀虫剂敏感性状况,为预防登革热等蚊传疾病和指导媒介伊蚊用药提供依据。方法 2020年5-10月,选择重庆市6个区(县)的公园或废旧轮胎堆放处采集白纹伊蚊,带回实验室饲养1~2代,采用幼虫浸渍法及成蚊接触筒法开展抗药性监测。结果 重庆市各调查点白纹伊蚊幼蚊对常用杀虫剂的敏感性均不同,抗性倍数在0.46~7.32倍。其中对双硫磷的抗性倍数为0.46~4.92倍,对残杀威的抗性倍数为0.82~7.32倍。重庆市各调查点白纹伊蚊成蚊对溴氰菊酯、氯菊酯、高效氯氰菊酯、高效氯氟氰菊酯均产生不同程度的抗性,24 h死亡率在5.88%~78.22%。除万州区野外白纹伊蚊成蚊对虫威和杀螟硫磷产生可疑抗性及大足区野外白纹伊蚊成蚊对毒死蜱产生可疑抗性外,其余调查点野外白纹伊蚊成蚊对残杀威、虫威、马拉硫磷、杀螟硫磷、毒死蜱均为敏感。结论 重庆市各调查点白纹伊蚊成蚊对拟除虫菊酯类药物均产生抗性,部分调查点白纹伊蚊幼蚊对双硫磷和残杀威产生低抗。建议定期监测白纹伊蚊的抗性水平及变化趋势,根据不同虫态的抗药性采取相应的杀虫剂使用策略。

关键词: 白纹伊蚊, 登革热, 抗药性

CLC Number: