中国媒介生物学及控制杂志

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广东省鼠疫疫源地印鼠客蚤对6种杀虫剂的抗药性试验及防制策略研究

易建荣1;梁秋光2;林立丰1; 卢瑞明2   

  1. 1广东省疾病预防控制中心消毒杀虫研究所 广州510300;2 广东省湛江鼠疫防治研究所
  • 出版日期:2008-08-20 发布日期:2008-08-20

Study on the resistance and control strategy of Xenopsylla cheopis to six insecticides in Guangdong plague natural focus

YI Jian-rong*; LIANG Qiu-guang; LIN Li-feng; LU Rui-ming   

  1. Guangdong Center for Diseases Control and Prevention, Guangzhou 510300, China
  • Online:2008-08-20 Published:2008-08-20

摘要: 目的 观察鼠疫疫源地印鼠客蚤对杀虫剂的抗药性变化。方法 药膜法。结果 鼠疫疫源地印鼠客蚤对灭蚤药物的敏感性有所下降,但强化灭蚤地区印鼠客蚤对氯菊酯、溴氰菊酯、马拉硫磷、敌敌畏、残杀威、奋斗呐的敏感性大幅度下降,其LC50分别是0.0165、0.1170、0.0202、0.0002、0.0038、0.0087mg/cm2,分别是对照区的4.78、16.32、2.08、1.70、1.66和2.94倍。结论 大量而持续地使用杀虫剂可产生抗药性,因此要加强对蚤类抗药性监测,轮换使用灭蚤药物,科学、合理用药。

关键词: 印鼠客蚤, 鼠疫疫源地, 杀虫剂, 抗药性

Abstract: Objective To study the resistant change of Xenopsylla cheopis to insecticides in plague natural focus. Methods Surface contact method was used in this study. Results The LC50 of X.cheopis to malathion, propoxur, dichlorovos, permethrin, deltamethrin and fendona in the constant flea-killing areas were 0.0165, 0.1170, 0.0202, 0.0002, 0.0038, 0.0087 mg/cm2, which were 4.78, 16.32, 2.08, 1.70, 1.66 and 2.94 times of the control. Conclusion Large and constant use of flea-insecticide may lead to resistance. Therefore, the resistance of insecticide must be monitored constantly when killing fleas. The insecticide must be used scientifically and rationally.