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中国生物防治学报 ›› 2018, Vol. 34 ›› Issue (6): 807-812.DOI: 10.16409/j.cnki.2095-039x.2018.06.001

• 研究论文 •    下一篇

芝麻花对稻螟赤眼蜂寄生和扩散能力的影响

田俊策1, 王国荣2, 郑许松1, 吕仲贤1   

  1. 1. 浙江省农业科学院植物保护与微生物研究所/浙江省植物有害生物防控省部共建国家重点实验室培育基地, 杭州 310021;
    2. 杭州市萧山区农业局, 杭州 211203
  • 收稿日期:2018-05-29 出版日期:2018-12-08 发布日期:2018-12-08
  • 通讯作者: 吕仲贤,研究员,E-mail:luzxmh@163.com
  • 作者简介:田俊策,副研究员,E-mail:tianjunce@163.com
  • 基金资助:
    浙江省重点研发计划(2015C02016);国家水稻产业技术体系(CARS-01-17);浙江省植物有害生物防控省部共建国家重点实验室培育基地自主设计项目(2010DS700124-ZZ1601)

The Effect of Sesame Flowers on the Fecundity and Dispersal Ability of Trichogramma japonicum

TIAN Junce1, WANG Guorong2, ZHENG Xusong1, LÜ Zhongxian1   

  1. 1. China National Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control/Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China;
    2. Xiaoshan Agriculture Bureau, Hangzhou 211203, China
  • Received:2018-05-29 Online:2018-12-08 Published:2018-12-08

摘要: 芝麻是一种适合于稻田生态系统的蜜源植物,但其对稻田优势赤眼蜂稻螟赤眼蜂的作用未有系统的研究。本文在室内和大田的条件下考察了芝麻花对稻螟赤眼蜂寄生力和扩散能力的影响。室内结果表明,芝麻花可以显著的提高稻螟赤眼蜂对米蛾卵的寄生力。同时芝麻花显著影响了稻螟赤眼蜂的初始扩散能力,初始起飞蜂比例从71.4%下降至50.5%,但总的扩散蜂比例从91.9%增加至95.4%。田间结果显示田埂种植芝麻花可以提高稻螟赤眼蜂的寄生能力约30%,且更多的蜂扩散至距田埂20~25 m的距离。总之,芝麻花可显著的提高稻螟赤眼蜂寄生和扩散能力。

关键词: 稻螟赤眼蜂, 芝麻, 扩散, 生物防治

Abstract: Sesame is one of the nectar plants that are suitable for rice eco-system. However, the effects of sesame on Trichogramma japonicum, the dominant Trichogramma species in rice field, have not been studied. In the present study, the effects of sesame on fecundity and dispersal capability of T. japonicum were investigated under laboratory and field conditions. Laboratory results indicated that sesame flower significantly improved the fecundity of T. japonicum on Corcyra cephalonica eggs and the initial dispersal capability of the wasp. The percentage of initial flyers decreased from 71.4% to 50.5%, while the percentage of total dispersal wasps increased from 91.9% to 95.4%. The field results showed that planting sesame on the field ridge could increase the fecundity of T. japonicum for approximately 30% and their dispersal distance as far as 20-25 m from the ridge. In summary, sesame flower can significantly improve the fecundity and dispersal capability of the wasp.

Key words: Trichogramma japonicum, sesame, dispersal, biological control

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