中国媒介生物学及控制杂志 ›› 2015, Vol. 26 ›› Issue (3): 252-253.DOI: 10.11853/j.issn.1003.4692.2015.03.008

• 论著 • 上一篇    下一篇

抗吡丙醚淡色库蚊对5种常用杀虫剂的交互抗性

刘洪霞, 冷培恩, 徐劲秋   

  1. 上海市疾病预防控制中心病媒生物防治科, 上海200336
  • 收稿日期:2015-03-25 出版日期:2015-06-20 发布日期:2015-06-20
  • 作者简介:刘洪霞,女,博士,副主任技师,主要从事媒介生物生态学及控制研究,Email: liuhongxia@scdc.sh.cn
  • 基金资助:

    上海市自然科学基金(12ZR1426600)

Cross-resistance in pyriproxyfen-resistant Culex pipiens pallens strain to five other insecticides

LIU Hong-xia, LENG Pei-en, XU Jin-qiu   

  1. Shanghai Center for Disease Control and Prevention, Shanghai 200336, China
  • Received:2015-03-25 Online:2015-06-20 Published:2015-06-20
  • Supported by:

    Supported by the Natural Science Foundation of Shanghai Municipal(No. 12ZR1426600)

摘要:

目的 了解淡色库蚊对化学杀虫剂的交互抗性,为合理选择杀虫剂提供依据。方法 采用幼虫浸液法,测定经12代选育后的抗吡丙醚淡色库蚊幼虫对常用杀虫剂的半数致死浓度(LC50),比较其对杀虫剂敏感性的变化。结果 经过12代的抗性选育,淡色库蚊抗吡丙醚品系的抗性倍数达5.69倍,对溴氰菊酯、醚菊酯呈现低交互抗性,对双硫磷、倍硫磷以及除虫脲的交互抗性不明显。结论 长期使用吡丙醚会产生抗性,并且可能会对其他杀虫剂产生交互抗性,应用时需注意使用频次以及杀虫剂种类的选择。

关键词: 淡色库蚊, 交互抗性, 化学杀虫剂

Abstract:

Objective To determine the cross-resistance spectrum of pyriproxyfen-resistant Culex pipiens pallens to other common insecticides and provide a basis for the optimal application of insecticides. Methods The larvae dipping method recommend by WHO was used to determine the median lethal concentration(LC50)against insecticides tested. Results The resistance-ratio of Cx. pipiens pallens to pyriproxyfen increased to 5.69 after 12 generations of selection. There was a low cross resistance to deltamethrin and etofenprox, but no cross resistance to temephos, baytex and diflubenzuron. Conclusion The resistance to pyriproxyfen and cross-resistance to other insecticides are expected to occur after long-time application of pyriproxyfen,therefore strategies must be implemented to mitigate the development of resistance and cross resistance.

Key words: Culex pipiens pallens, Cross resistance, Insecticides

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