中国媒介生物学及控制杂志 ›› 2009, Vol. 20 ›› Issue (2): 127-128.

• 论著 • 上一篇    下一篇

不同龄期和性别德国小蠊对拟除虫菊酯类杀虫剂敏感性的测定

竹傲游红, 王晓燕朱福兴   

  1. 华中农业大学植物科学技术学院(湖北 武汉 430070)
  • 收稿日期:2008-11-03 出版日期:2009-04-20 发布日期:2009-04-20
  • 通讯作者: 朱福兴, Email:zhufuxing@mail.hzau.edu.cn
  • 作者简介:竹傲(1982-),男,硕士,从事农药药理学研究。

Susceptibility of different instars and sexes of Blattella germanica to pyrethroid insecticides

 ZHU Ao, YOU Hong, WANG Xiao-Yan, ZHU Fu-Xing   

  1. Huazhong Agricultural University ,Wuhan, Hubei 430070, China
  • Received:2008-11-03 Online:2009-04-20 Published:2009-04-20
  • Contact: ZHU Fu-xing, Email:zhufuxing@mail.hzau.edu.cn

摘要:

  【摘要】 目的 测定溴氰菊酯、氯氰菊酯对德国小蠊雌雄成虫和1、3、5龄若虫的毒力,为德国小蠊的化学防治提供更有效的指导。方法 广口瓶药膜法。结果 德国小蠊对溴氰菊酯和氯氰菊酯的耐药性在不同龄期和性别间存在差异。1龄若虫对溴氰菊酯和氯氰菊酯的耐药性最低,其KT50分别为7.1743 min和10.0015 min;5龄若虫的耐药性最高,其KT50分别为14.1624 min和24.6041 min。若虫期,随着龄期的增加,其耐药性逐渐增强。在成虫期,雄成虫的耐药性大于雌成虫,雄成虫对溴氰菊酯和氯氰菊酯的KT50分别为9.6157 min和11.7492 min。结论 5龄若虫的KT50值大于1、3龄若虫和雌雄成虫,雄成虫的KT50大于雌成虫。

关键词: 德国小蠊, 溴氰菊酯, 氯氰菊酯, KT50

Abstract:

  【Abstract】 Objective To assay the toxicities of deltermethrin and cypermethrin to male, female adults and the first, third, fifth instar nymphae of Blattella germanica, and to provide the effective instruction for chemical control of B.germanica. Methods The  insecticide  films  in  jar  was  used  in this study. Results There was significant difference for the tolerance of B.germanica to deltamethrin and cypermethrin  among different instars and different sexes. The tolerance of the first instar nymphae to deltamethrin and cypermethrin was the lowest with the KT50 values of 7.1743 min and 10.0015 min respectively. The KT50 of the fifth instar nymphae to these two chemicals were 14.1624 min and 24.6041 min respectively, highest in all the instars. The tolerance level of nymphae increased gradually with the development of instars. The tolerance level of male adults was higher than that of female adults. The KT50 of male adults to the two tested chemicals were 9.6157 min and 11.7492 min respectively. Conclusion The KT50 of the fifth instar nymphae to deltermethrin and cypermethrin was the highest. The KT50 of male adults to deltermethrin and cypermethrin was higher than that of female adults.

Key words: Blattella germanica, Deltamethrin, Cypermethrin, KT50

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