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通过推迟供卵的方法考察了卷蛾分索赤眼蜂 (Trichogrammatoideabactrae)在寄主缺乏情况下的生殖策略 .结果表明 ,在短期 (羽化后 4d内 )缺乏寄主条件下 ,卷蛾分索赤眼蜂具有一定的适应性 ,在恢复供卵首日的寄生卵量有所提高 ,且其繁殖力和成虫寿命没有受到明显的影响 ;在长期 (羽化后 8d内 )缺乏寄主情况下 ,卷蛾分索赤眼蜂没有积极的生殖对策 ,其群体繁殖力和寿命都受到不同程度的削弱 .在此基础上提出了在利用赤眼蜂自然控制目标害虫的过程中 ,尤其是在目标寄主匮乏时 ,应采取相应的田间保护和增强措施
The reproductive strategies of Trichogrammatoideabactrae in the absence of host were investigated by postponing the oviposition.The results showed that under the condition of lack of host for a short time (within 4 days after emergence), Trichogramma With some adaptability, the amount of parasitic eggs increased on the first day of recovery and the fertility and adult life were not significantly affected. In the long term (within 8 days after emergence), the number of parasitic eggs Trichogramma was not active in reproductive strategy, its population fertility and life expectancy were weakened to varying degrees.On the basis of the proposed Trichogramma natural control target pests, especially in the absence of the target host should Take appropriate field protection and enhancement measures