摘要： 对管侧沟茧蜂的寄生行为、寄主范围、寄主大小的选择及生殖能力进行了研究。结果表明，管侧沟茧蜂主要寄生夜蛾科的甜菜夜蛾、粘虫和斜纹夜蛾等害虫的1～2龄幼虫，对粘虫1～3龄幼虫的选择系数分别为0.42，0.54，0.05，3龄以上幼虫很少寄生。管侧沟茧蜂羽化后当天就能交配寄生，雌成蜂6日龄前的寄生数量占90%，在19～25℃单雌平均产茧30个，单雌最多产茧89个，雌蜂平均寿命，最长13 d，该蜂具有很强的生殖能力和控制目标害虫的能力。

关键词: 管侧沟茧蜂, 寄生行为, 生殖能力

Abstract: Parasitoidism, host range, host size and production ability of Microplitis tuberculifer Wesmael were studied. The results showed that M. tuberculifer parasitize mainly 1st and 2nd instars larvae of Spodoptera exigua, Leucania separata and Prodenia eridenia. 1st, 2nd and 3rd instars larvae of Leucania separata were strongest with the selective index of 0.42, 0.54 and 0.05, respectively. Fourth instar larva and above could not nearly be parasitized. M. tuberculiferr could mate and parasitize at the day of their eclosion. Before 6th day female could parasitize 90 percent of target pest. The average cocoons produced by one female was 30 and the maximum was 89 at 19-25℃. The average life span of female was 6 days and 13 days at most. It had stronger ability to propagate and control target pest.

Key words: Microplitis tuberculifer Wesmael, Parasitoidism, Reproduction ability

中图分类号: 

• S476.3