2种侧沟茧蜂对草地贪夜蛾的寄生效果  

Parasitic Potential of Two Microplitis Species on Spodoptera frugiperda Larvae

作　　者：路子云[1] 杨小凡 马爱红[1] 冉红凡[1] 刘文旭[1] 李建成[1] LU Zi-yun;YANG Xiao-fan;MA Ai-hong;RAN Hong-fan;LIU Wen-xu;LI Jian-cheng(Key Laboratory of Integrated Pest Management on Crops in Northern Region of North China,Ministry of Agriculture,IPM Center of Hebei Province,Plant Protection Institute of Hebei Academy of Agriculture and Forestry Sciences,Baoding 071000,China)

机构地区：[1]河北省农林科学院植物保护研究所,河北省农业有害生物综合防治工程技术研究中心,农业部华北北部作物有害生物综合治理重点实验室,河北保定071000

出　　处：《河北农业科学》2020年第4期37-39,55,共4页Journal of Hebei Agricultural Sciences

基　　金：国家重点研发计划专项(2017YFD0201000);河北省重点研发项目(19226511D);河北省现代农业产业技术体系项目(HBCT2018100206);河北省农林科学院创新工程项目(2019-1-1-6)。

摘　　要：为探讨我国本土天敌昆虫对外来入侵害虫草地贪夜蛾的防治效果,以中红侧沟茧蜂和管侧沟茧蜂为试材,在室内条件下测定了2种寄生蜂对草地贪夜蛾幼虫的寄生效果。结果表明:2种侧沟茧蜂均能寄生草地贪夜蛾的低龄幼虫,其中中红侧沟茧蜂寄生4、6和8日龄幼虫的结茧率分别为30.99%、19.01%和3.98%,死亡率分别为7.99%、6.98%和72.96%;管侧沟茧蜂寄生6日龄幼虫的结茧率为62.00%,死亡率为30.95%。2种侧沟茧蜂均具有防治草地贪夜蛾的潜力,管侧沟茧蜂对草地贪夜蛾的寄生能力优于中红侧沟茧蜂。To evaluate the control efficiency of native larval parasitic wasp on Spodoptera frugiperda(J.E.Smith),we compared the parasitic potential of Microplitis mediator and M.tuberculifer under laboratory conditions.The results showed that both of the two Microplitis species were parasitic on young larvae of S.frugiperda,and the percentage of M.mediator cocoons on the 4th,6th and 8th larvae were 30.99%,19.01%%and 3.98%,and the mortality of S.frugiperda larvae were 7.99%,6.98%and 72.96%,respectively.While the percentage of M.tuberculifer cocoons on the 6th S.frugiperda larvae and the mortality was 62.00%and 30.95%,respectively.Both of the two Microplitis species have the potential of biological control of S.frugiperda,and the parasitic ability of M.tuberculifer was better than that of M.mediator.

关 键 词：草地贪夜蛾 中红侧沟茧蜂 管侧沟茧蜂 寄生 生物防治 结茧率 死亡率 发育历期 

分 类 号：S476.3[农业科学—农业昆虫与害虫防治]