不同释放密度和高度对稻螟赤眼蜂防控两种水稻螟虫效果的影响  

Releasing density and height on control effect of Trichogramma japonicum on rice borers in paddy field

作　　者：李姝[1] 庄家祥 杭德龙[3] 李子红 欧阳承 王杰 朱晓明[6] 张帆[1] LI Shu;ZHUANG Jia-Xiang;HANG De-Long;LI Zi-Hong;OUYANG Cheng;WANG Jie;ZHU Xiao-Ming;ZHANG Fan(Institute of Plant and Environment Protection,Beijing Academy of Agriculture and Forestry Sciences,Beijing 100097,China;Fujian Station of Plant Protection and Quarantine,Fuzhou 350003,Fujian Province,China;Plant Protection Station of Chaohu County,Chaohu 238000,Anhui Province,China;Guizhou Station of Plant Protection and Quarantine,Guiyang 550001,China;Ningguo City of Plantation Bureau,Ningguo 242300,Anhui Province,China;National Agro-Technical Extension and Service Center,Beijing 100125,China)

机构地区：[1]北京市农林科学院植物保护环境保护研究所,北京100097 [2]福建省植保植检总站,福州350003 [3]安徽省巢湖市植保站,安徽巢湖238000 [4]贵州省植保植检站,贵阳550001 [5]安徽省宁国市种植业局,安徽宁国242300 [6]全国农业技术推广服务中心,北京100125

出　　处：《环境昆虫学报》2020年第2期294-298,共5页Journal of Environmental Entomology

基　　金：北京市农林科学院科技创新能力建设专项(KJCX20200203);国家重点研发计划“长江中下游水稻化肥农药减施增效技术集成研究与示范”(2016YFD0200800)。

摘　　要：稻螟赤眼蜂Trichogramma japonicum Ashmead是二化螟Chilo suppressalis(Walker)和稻纵卷叶螟Cnaphalocrocis medinalis(Guenée)的优势卵寄生蜂。为优化稻螟赤眼蜂田间释放技术,作者分别在安徽、福建和贵州进行了稻螟赤眼蜂不同释放高度和密度对防控两种水稻螟虫效果影响的田间试验。结果表明,对于防控稻纵卷叶螟,释放量一定时,赤眼蜂在稻株顶部以上5 cm高度、8点/0.07 hm 2释放密度的防治效果优于其他释放密度和高度的处理。而对于防控二化螟,不同释放高度对赤眼蜂防治效果差异不显著。Trichogramma japonicum Ashmead is the dominant egg parasitoid species against the rice borers Chilo suppressalis(Walker)and Cnaphalocrocis medinalis(Guenée).To optimize the application technology of rice borers control by releasing T.japonicum in the field,we tested the effects of different releasing heights and densities on the control effect.Field experiments were conducted to investigate the damage rate of rice borers and control effect of parasitoid wasps in Anhui,Fujian and Guizhou.The results showed that the control effect of T.japonica on C.medinalis with releasing height at 5 cm above the top of rice plant and density at 8 points per 0.07 hm 2,was better than that of other treatments.However,T.japonica had no significant difference effects on C.suppressalis with different releasing heights.

关 键 词：稻螟赤眼蜂 二化螟 稻纵卷叶螟 释放高度 释放密度 防治效果 

分 类 号：Q968.1[生物学—昆虫学] S433[农业科学—农业昆虫与害虫防治]