茶园新天敌绿点益蝽的初步研究  

Picromerus viridipunctatus Yang:a new natural enemy in tea plantations

作　　者：唐美君[1,2] 王志博 张欣欣[1,3] 殷坤山 周孝贵[1] 郭华伟[1,2] 肖强[1,2] TANG Meijun;WANG Zhibo;ZHANG Xinxin;YIN Kunshan;ZHOU Xiaogui;GUO Huawei;XIAO Qiang(Tea Research Institute,Chinese Academy of Agricultural Sciences,Hangzhou 310008,China;Key Laboratory of Tea Quality and Safety Control,Ministry of Agriculture and Rural Affairs,Hangzhou 310008,China;Graduate School of Chinese Academy of Agricultural Sciences,Beijing 100081,China)

机构地区：[1]中国农业科学院茶叶研究所,杭州310008 [2]农业农村部茶叶质量安全控制重点实验室,杭州310008 [3]中国农业科学院研究生院,北京100081

出　　处：《植物保护》2023年第3期231-235,共5页Plant Protection

基　　金：中央级公益性科研院所基本科研业务费(1610212022007);国家重点研发计划(2020YFD1000701);科技基础性工作专项(2013FY113200)。

摘　　要：绿点益蝽Picromerus viridipunctatus是茶园中新发现的一种捕食性天敌。为探明其生防潜力,通过室内饲养和观测,对其生物学习性和捕食行为开展了研究。结果表明,绿点益蝽在杭州一年发生4代,以成虫越冬;若虫共有5龄。在7月-11月自然温度条件下,卵期、若虫期和成虫期分别为9.1~9.7、23.4~28.0、22.5~26.6 d。单雌平均产卵量133粒,卵平均孵化率55.6%。若虫和成虫均能捕食多种茶园鳞翅目害虫,目前已明确的有茶尺蠖、灰茶尺蠖、茶用克尺蠖、茶蚕、茶刺蛾和茶斑蛾等;成虫对4龄灰茶尺蠖的日捕食量为5.5头。绿点益蝽在茶园具有较好的应用潜力。It is reported for the first time that Picromerus viridipunctatus was a natural enemy discovered in tea garden of Zhejiang province.In order to explore its biocontrol potential,its biological characteristics and predatory behavior were investigated through indoor rearing and observation.The results showed that P.viridipunctatus had four generations a year in Hangzhou,and overwintered as adults.Nymphs have five instars.Under natural temperature conditions from July to November,the developmental duration of egg,nymph and adult stages were 9.1-9.7 days,23.4-28.0 days and 22.5-26.6 days,respectively.The fecundity of each female was 133 eggs,and the average hatching rate of eggs was 55.6%.Both nymphs and adults can prey on a variety of lepidopterous pests in tea plantations,including Ectropis obliqua,E.grisescens,Junkowskia athleta,Andraca bipunctata,Phlossa fasciata and E.aedea.The daily predation of adults on the 4th-instar larvae of E.grisescens was 5.5 individual.Thus,P.viridipunctatus had potential to be applied in tea plantations.

关 键 词：绿点益蝽 生活史 历期 生物习性 捕食 

分 类 号：S476[农业科学—农业昆虫与害虫防治]