浙江农业学报 ›› 2017, Vol. 29 ›› Issue (10): 1692-1698.DOI: 10.3969/j.issn.1004-1524.2017.10.14

• 植物保护 • 上一篇    下一篇

联苯肼酯药后对朱砂叶螨和二斑叶螨的产卵抑制作用及所产螨卵的影响

杨振国, 谢道燕, 倪婧, 苏振国, 罗雁婕*   

  1. 云南省农业科学院 蚕桑蜜蜂研究所, 云南 蒙自 661101
  • 收稿日期:2017-04-21 出版日期:2017-10-20 发布日期:2017-12-05
  • 通讯作者: 罗雁婕,E-mail:yanjieluo@126.com
  • 作者简介:杨振国(1986-),男,苗族,云南砚山人,硕士,助理研究员,研究方向为桑树病虫害防控研究。E-mail: zhenguoyang@qq.com
  • 基金资助:
    国家自然科学基金项目(31560520); 云南省科技计划重点新产品项目(2015BB009)

Effects of bifenazate on eggs and oviposition inhibitory activities of Tetranychus cinnabarinus and Tetranychus urticae

YANG Zhenguo, XIE Daoyan, NI Jing, SU Zhenguo, LUO Yanjie*   

  1. Institute of Sericulture &
    Apiculture, Yunnan Academy of Agricultural Sciences, Mengzi 661101, China
  • Received:2017-04-21 Online:2017-10-20 Published:2017-12-05

摘要: 为明确联苯肼酯施药后对叶螨产卵及所产卵的影响,在室内通过叶碟法比较了不同浓度联苯肼酯药液对朱砂叶螨和二斑叶螨雌成螨的杀螨活性、药后产卵变化及所产螨卵的孵化情况。结果表明:1.25~100.00 mg·L-1联苯肼酯对朱砂叶螨和二斑叶螨的雌成螨均具有显著杀螨活性,药后24 h的LC50分别为7.52和12.42 mg·L-1,药后2种叶螨的成螨产卵受到显著抑制,其产卵抑制率分别为27%~81%和10%~80%,产卵抑制中浓度分别为4.16和6.86 mg·L-1。2种叶螨药后所产螨卵的孵化率随联苯肼酯浓度的增大而显著降低,对药后所产卵的LC50分别为24.26和15.28 mg·L-1。因此,联苯肼酯在杀死成螨的同时也具有明显的产卵抑制作用,且药后所产螨卵的孵化也受到明显影响。

关键词: 联苯肼酯, 杀螨活性, 朱砂叶螨, 二斑叶螨, 产卵抑制

Abstract: In order to ascertain the effect of bifenazate on spider mites oviposition and mite eggs. The acaricidal activities, oviposition changes and egg hatch under different concentration of bifenazate against Tetranychus cinnabarinus and T. urticae were compared by leaf disc method in indoor condition. The results indicated that 1.25-100.00 mg·L-1 bifenazate showed significantly acaricidal activities against T. cinnabarinus and T. urticae female adults with LC50 of 7.52 and 12.42 mg·L-1, respectively, and their oviposition were significantly inhibited with the oviposition inhibitory rate between 27% to 81% and 10% to 80%, and the median oviposition inhibitory concentration were 4.16 and 6.86 mg·L-1, respectively. Moreover, hatchability significantly decreased with increasing bifenazate concentration, and the LC50 were 24.26 and 15.28 mg·L-1, respectively. Therefore, bifenazate not only killed adult mites, but also had a significant effect on oviposition inhibitory, and the hatching of sprayed mite eggs was also significantly affected.

Key words: bifenazate, acaricidal activity, Tetranychus cinnabarinus, Tetranychus urticae, oviposition inhibitory

中图分类号: