茶园间作桂花树对柿广翅蜡蝉越冬种群的影响  

Effects of Iintercropping tea with Osmanthus fragrans Lour on Ooverwintering Ppopulations of Ricania sublimbata Jacobi

作　　者：李茜茜 高智 周武 李玉龙 陶玉红 金银利 LI Xixi;GAO Zhi;ZHOU Wu;LI Yulong;TAO Yuhong;JIN Yinli(College of Agriculture,Xinyang Agriculture and Forestry University,Xinyang 464000,China)

机构地区：[1]信阳农林学院农学院,河南信阳464000

出　　处：《信阳农林学院学报》2022年第1期106-109,114,共5页Journal of Xinyang Agriculture and Forestry University

基　　金：茶园化肥农药减施增效技术集成研究与示范(2016YFD0200900);信阳农林学院青年教师科研基金资助项目(201701007);河南省科技攻关项目(172102110235)。

摘　　要：本文调查研究了柿广翅蜡蝉越冬种群对不同茶园茶枝的为害情况及其在间作桂花树上的越冬部位和为害规律。结果表明,疏于管理但间作有桂花树的陈湾村茶园内茶枝的受害率为3.59%[95%置信区间(CI)=(2.53,4.83)],显著低于其它茶园茶枝的受害率。柿广翅蜡蝉成虫偏向于在陈湾村茶园间作的桂花树枝条上产卵越冬,枝条直径平均为0.22 cm,越冬产卵刻痕顶端至桂花枝条芽头的平均距离为2.79 cm,产卵刻痕平均长度为1.30 cm。建议在茶园地头或边行间作桂花树诱集柿广翅蜡蝉产卵,并于每年10月下旬,及时剪除受越冬卵刻痕为害的桂花树嫩枝条,以消灭越冬虫源。本研究可为茶树柿广翅蜡蝉越冬种群的绿色生态防控提供一定的理论依据,对减少茶园农药用量以及提高“信阳毛尖”的产量和品质具有十分重要的意义。This paper investigated not only the scarring damage of Ricania sublimbata Jacobi by laying overwintering eggs into tea branch in different tea plantations,but also overwintering sites,occurrence and damage of R.sublimbata on branch of intercropping Osmanthus fragrans.The results indicated that the damage rates in Chenwan village tea plantation(lax regulation and intercropping O.fragrans)was 3.59%(95%CI=[2.53,4.83]),significantly lower than other tea plantations.Adult R.sublimbata preferred to lay overwintering eggs in branches of intercropping O.fragrans in Chenwan village tea plantation,with a mean diameter of 0.22 cm,moreover,the average distance from the top of oviposition scar to tip of the shoot was 2.79 cm,the averagemean length of oviposition scar was 1.30 cm.It was suggested that O.fragrans trees should be planted intercropped in or around the tea plantations for trapping overwintering eggs laid by R.sublimbata,and cut off the branches with oviposition scar should be cut off in late October for to removing e the source of this insect.The study provided a theoretical basis for green ecological control of the overwintering population of R.sublimbata,which will be of of important significance to reduce ing pesticide usinge and improve the yielding yield and quality of Xinyang Maojian Tea.

关 键 词：茶树 桂花树 间作 柿广翅蜡蝉 越冬种群 

分 类 号：S571.1[农业科学—茶叶生产加工] S435.711[农业科学—作物学]