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中国农学通报

中国农学通报 ›› 2010, Vol. 26 ›› Issue (5): 219-222.

• 植物保护 农药 • 上一篇    下一篇

红脉穗螟天敌—扁股小蜂生物学特性的研究

甘炳春,黄良明,陈旭玉,杨新全,刘丽风   

  • 收稿日期:2009-09-27 修回日期:2009-10-26 出版日期:2010-03-05 发布日期:2010-03-05
  • 基金资助:

    十一五”国家科技支撑计划课题:“重点道地南药良种选育及规范化生产关键技术研究”

Study on Biological Characteristics of Elasmus sp. a parasitoid of Tirathaba rufivena Walker

GAN Bing-Chun   

  • Received:2009-09-27 Revised:2009-10-26 Online:2010-03-05 Published:2010-03-05

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摘要：

在实验室条件下，对红脉穗螟(Tirathaba rufivena Walker)天敌—扁股小蜂[Elasmus sp.]生物学特性进行了观察研究。结果表明，成蜂大部分在夜间羽化，雌雄蜂羽化高峰期分别为1:00~03:00和23:00~1:00点；雌雄性比为1∶1.2；雌蜂羽化当天就可交尾产卵,该蜂兼营两性生殖和孤雌生殖,未交尾雌蜂繁殖的子代为雄性；在26±0.5℃和75±5%相对湿度条件下，卵、幼虫和蛹的发育历期分别为0.9、4.2和7.2天。成虫以蜂蜜为补充营养可延长其寿命。

关键词: 杂交籼稻, 杂交籼稻, 恢复系, 淀粉粘滞性谱, 相关分析, 聚类分析

Abstract:

The Biological Characteristics of Elasmus sp. a parasitoid of Tirathaba rufivena Walker were observated in laboratory. The results showed that the adults emerged mainly in the evening, with the peak emergence of female and male adults at 1:00-3:00 and 23:00 -1:00 respectively. The sex ratio in laboratory populations (♀∶♂) was 1∶1.2. The female adults could mate and oviposite in 24 hours after emergence. The adult can reproduce in both ways of amphigony and parthenogenesis, the unmated females could only produce male progeny. Under 26±0.5℃ and 75±5%RH condition, the developmental duration of egg, larva and pupa were 0.9, 4.2 and 7.2d respectively. Feeding on honey water solution, the adult longevity could be prolonged. Key words：Tirathaba rufivena；Elasmus sp.；biological； developmental duration； longevity