欢迎访问《茶叶科学》,今天是

茶叶科学 ›› 2011, Vol. 31 ›› Issue (2): 100-104.doi: 10.13305/j.cnki.jts.2011.02.004

• • 上一篇    下一篇

不同地理种群茶尺蠖对EoNPV的敏感性差异研究

席羽1,2, 殷坤山1, 肖强1*   

  1. 1. 中国农业科学院茶叶研究所,浙江 杭州 310008;
    2. 中国农业科学院研究生院,北京 100081
  • 收稿日期:2010-09-20 修回日期:2011-01-02 出版日期:2011-04-15 发布日期:2019-09-06
  • 通讯作者: xqtea@mail.tricaas.com
  • 作者简介:席羽(1986— ),女,山东费县人,硕士研究生,主要从事茶树害虫生物防治研究。
  • 基金资助:
    科技基础性工作专项(2008FY210500)、公益性行业(农业)科研专项(nyhyzx07-021)

The Susceptibility Difference against EoNPV in Different Geographic Populations of Tea Geometrid(Ectropis oblique Prout)

XI Yu1,2, YIN Kun-shan1, XIAO Qiang1*   

  1. 1. Tea Research Institute of Chinese Academy of Agricultural Sciences, Hangzhou 310008, China;
    2. Graduate school of Chinese Academy of Agricultural Sciences, Beijing 100081, China
  • Received:2010-09-20 Revised:2011-01-02 Online:2011-04-15 Published:2019-09-06

摘要: 采集来自浙江、湖南、湖北和江苏省的7个不同地理种群茶尺蠖,用茶尺蠖核型多角体病毒(EoNPV)进行室内生物测定,结果表明不同地理种群茶尺蠖对EoNPV敏感性存在明显差异。浙江杭州种群和江苏宜兴种群对EoNPV的敏感性较高,饲毒后11d幼虫全部死亡,致死中浓度(LC50)分别为8.32×104PIB/mL和8.61×104PIB/mL;其他5个地理种群茶尺蠖对EoNPV的敏感性较低,饲毒后11d的死亡率均在30%以下,致死中浓度LC50在1.35×107~6.03×107PIB/mL之间;其中敏感性最低的浙江衢州种群和敏感性最高的江苏宜兴种群毒力差异达724.5倍。

关键词: 茶尺蠖, 地理种群, EoNPV, 生物测定, 敏感性差异

Abstract: The experiment of bioassay among 7 different geographic populations of tea geometrid was conducted to investigate the susceptibility difference against EoNPV. The results indicated that, there was a significant susceptibility difference against EoNPV in different geographic populations. Hangzhou population (HZ) and Yixing population (YX) have higher degree of susceptibility than that of others, and all larvae died in the 11th day after fed with EoNPV, with the median lethal concentration values were 8.32×104PIB/mL and 8.61×104PIB/mL respectively. The other 5 populations showed lower susceptibilities, and the mortality rates were under the 30% after 11-day EoNPV feeding, the median lethal concentration values were between 1.35×107PIB/mL and 6.03×107PIB/mL. Compared with the susceptible population (YX), the virulence ratio of EoNPV on the resistant population (Quzhou population, QZ) reached up to 724.5 fold.

Key words: Ectropis oblique Prout, geographic population, EoNPV, bioassay, susceptibility difference

中图分类号: