军配盲蝽和南方小花蝽对茶网蝽若虫的捕食作用  

Predation of Stethoconus japonicus and Orius similis to nymphs of Stephanitis chinensis

作　　者：江宏燕 陈世春[1] 程令 胡翔[1] 邬秀宏[1] 王晓庆[1] JIANG Hong-Yan;CHEN Shi-Chun;CHENG Ling;HU Xiang;WU Xiu-Hong;WANG Xiao-Qing(Chongqing Academy of Agricultural Sciences,Chongqing 402160,China;Beijing Key Laboratory for Forest Pest Control,Beijing Forestry University,Beijing 100083,China)

机构地区：[1]重庆市农业科学院,重庆402160 [2]北京林业大学林木有害生物防治北京市重点实验室,北京100083

出　　处：《环境昆虫学报》2023年第3期754-760,共7页Journal of Environmental Entomology

基　　金：国家现代农业产业技术体系(CARS-19);重庆市自然科学基金面上项目(cstc2019jcyj-msxmX0055);重庆市农业科学院青年创新团队项目(NKY-2019QC05)。

摘　　要：茶网蝽Stephanitis chinensis是一种为害春茶的重要害虫,本文研究了天敌军配盲蝽Stethoconus japonicus和南方小花蝽Orius similis对茶网蝽的捕食能力,为茶网蝽的生物防治提供科学依据。在室内开展军配盲蝽和南方小花蝽对茶网蝽3龄若虫的捕食功能反应和寻找效应以及南方小花蝽的种内干扰反应研究。结果表明军配盲蝽和南方小花蝽对茶网蝽3龄若虫的捕食功能反应均符合HollingⅡ型。军配盲蝽和南方小花蝽的捕食量与茶网蝽3龄若虫的密度呈正相关,但寻找效应与猎物密度呈负相关。南方小花蝽成虫、3龄若虫对茶网蝽3龄若虫的日最大捕食量(11.49头、12.82头)大于军配盲蝽成虫、3龄若虫(10.10头、6.41头);军配盲蝽成虫对茶网蝽的寻找效应高于其3龄若虫,而南方小花蝽3龄若虫的寻找效应高于成虫。南方小花蝽成虫、3龄若虫对茶网蝽3龄若虫的捕食作用均存在种内干扰反应,且符合Hassell模型,分别为E=0.4263P^(-0.825)和E=0.5234P^(-0.762)。综上研究结果,军配盲蝽和南方小花蝽对茶网蝽3龄若虫的捕食作用较强,均具有良好的生物防治潜能。Stephanitis chinensis is an important tea pest which can harm spring tea.This study was to clarify the predation and biological control potential of two enemesis of this pest,Stethoconus japonicus and Orius similis.We observed their predation and searching efficiency to 3 rd instar nymphs of S.chinensis,and the intraspecific interference response of O.similis.The results showed that the functional responses of S.japonicus and O.similis to 3 rd instar nymphs of S.chinensis both conformed to the Holling II equation.Their predation was positively correlated with the density of 3 rd instar nymphs of S.chinensis,while their searching efficiency was negatively correlated with the density of prey.The maximum daily predation of O.similis adults and 3 rd instar nymphs to 3 rd instar nymphs of S.chinensis(11.49,12.82,respectively)was more than S.japonicus to S.chinensis(10.10,6.41,respectively).S.japonicus adults had a higher searching efficiency than 3 rd instar nymphs,and 3 rd instar nymphs of O.similis had a higher searching efficiency than adults.Predation of O.similis adults and 3 rd instar nymphs against 3 rd instar nymphs of S.chinensis had intraspecific interference responses,which conformed to the Hassell model equation,and the regression models were E=0.4263 P-0.825 and E=0.5234 P-0.762,respectively.In summary,S.japonicus and O.similis had strong biological control potential to 3 rd instar nymphs of S.chinensis.

关 键 词：茶网蝽 军配盲蝽 南方小花蝽 捕食功能反应 

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] S476[农业科学—植物保护]