红彩瑞猎蝽与蠋蝽同类相残和集团内捕食作用分析  

Cannibalism and intraguild predation in Rhynocoris fuscipes and Arma chinensis

作　　者：曾涛 杨海林 游梓翊 夏长剑 邓海滨 陈德鑫 ZENG Tao;YANG Hailin;YOU Ziyi;XIA Changjian;DENG Haibin;CHEN Dexin(Tobacco Research Institute of Guangdong Province,Shaoguan 512029,Guangdong,China;Engineering Center for Biological Control of Diseases and Pests in Tobacco Industry,Yuxi Branchof Yunnan Provincial Tobacco Company,Yuxi 653100,Yunnan,China;Haikou Cigar Research Institute,Hainan Provincial Tobacco Company of CNTC,Haikou 571100,China)

机构地区：[1]广东省烟草科学研究所,广东省韶关市512029 [2]云南省烟草公司玉溪市公司烟草行业病虫害生物防治工程研究中心,云南省玉溪市653100 [3]中国烟草总公司海南省公司海口雪茄研究所,海口市571100

出　　处：《烟草科技》2024年第1期58-67,共10页Tobacco Science & Technology

基　　金：中国烟草总公司科技重大专项项目“利用红彩瑞猎蝽防治斜纹夜蛾/烟青虫技术研究与集成应用”[110202101028(LS-03)]、“基于烟草和非烟作物天敌协同的控害机制研究”[110202101046(LS-06)];中国烟草总公司广东省公司科技项目“烟草害虫优势天敌红彩瑞猎蝽的开发与应用技术研究”(201944000020031);海南省重点研发计划项目“以天敌为主的海南雪茄烟鳞翅目害虫绿色防控关键技术研究与推广应用”(ZDYF2021XDNY141)。

摘　　要：红彩瑞猎蝽和蠋蝽均为防治斜纹夜蛾的重要捕食性天敌,为明确两种捕食蝽不同虫态间的相互竞争关系,在室内条件下测定了红彩瑞猎蝽和蠋蝽种内同类相残和种间集团内捕食作用。结果显示,两种捕食蝽同类相残效应随着虫龄的增加而增加,红彩瑞猎蝽同类相残效应比蠋蝽更明显。两种捕食蝽在各个若虫和成虫时期均有集团内捕食现象,但卵极少被捕食。红彩瑞猎蝽各发育阶段的存活率均高于同样发育阶段的蠋蝽,尤其红彩瑞猎蝽1龄若虫存活率显著高于蠋蝽1龄若虫。提供猎物斜纹夜蛾时,红彩瑞猎蝽和蠋蝽各虫态的集团内捕食效应均明显降低。表明红彩瑞猎蝽为集团内捕食者,而蠋蝽为集团内猎物;两种捕食蝽组合应用于斜纹夜蛾的防治,捕食效果显著高于单一捕食蝽的效果。Rhynocoris fuscipes and Arma chinensis are two important predatory natural enemies that can control Spodoptera litura.To investigate cannibalism and intraguild predation(IGP)between these two predatory bugs,experiments were conducted to evaluate R.fuscipes and A.chinensis under laboratory conditions.The results showed that the cannibalism effects of both species increased with insect instar,and the cannibalism effect of R.fuscipes was more severe than that of A.chinensis.Both predatory bugs had an IGP effect at all nymphal and adult stages,but few eggs were preyed upon.The survival rate of R.fuscipes was higher than that of A.chinensis at each developmental stage,especially the survival rate of 1st instar nymphs of R.fuscipes was significantly higher than that of 1st instar nymphs of A.chinensis.When S.litura was provided as prey,the IGP effects of R.fuscipes and A.chinensis at different stages were significantly reduced.These results indicated that R.fuscipes was an intraguild predator(IG-predator)and A.chinensis was an intraguild prey(IG-prey).The combined predation effect of two predators on S.litura was significantly higher than that of a single predator.

关 键 词：红彩瑞猎蝽 蠋蝽 同类相残 集团内捕食 斜纹夜蛾 

分 类 号：S476[农业科学—农业昆虫与害虫防治]