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茶叶科学 ›› 2016, Vol. 36 ›› Issue (5): 537-543.doi: 10.13305/j.cnki.jts.2016.05.013

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灰茶尺蛾性信息素的初步研究

罗宗秀1,2, 李兆群1, 蔡晓明1, 边磊1, 陈宗懋1,*   

  1. 1. 中国农业科学院茶叶研究所农产品质量安全研究中心,浙江 杭州 310008;
    2. 中国农业科学院研究生院,北京 100081
  • 收稿日期:2016-03-24 出版日期:2016-10-15 发布日期:2019-08-26
  • 通讯作者: *,zmchen2006@163.com
  • 作者简介:罗宗秀,男,博士研究生,助理研究员,主要从事茶树害虫化学生态学研究。
  • 基金资助:
    国家重点研发计划项目(2016YFD0200900)、现代农业产业技术体系项目(CARS-23)、中国农业科学院创新工程

A Primary Study on Sex Pheromone of Ectropis grisescens

LUO Zongxiu1,2, LI Zhaoqun1, CAI Xiaoming1, BIAN Lei1, CHEN Zongmao1,*   

  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:2016-03-24 Online:2016-10-15 Published:2019-08-26

摘要: 灰茶尺蛾是我国茶园中重要的食叶害虫。本研究对求偶高峰期的灰茶尺蛾雌虫,采用正己烷浸提腹部末端方法提取性信息素,利用气相色谱-触角电位联用仪(GC-EAD)筛选性信息素提取物中的活性成分,运用气相色谱-质谱联用仪(GC-MS)对活性成分进行鉴定,最后将人工合成的性信息素进行田间诱捕试验。GC-EAD结果显示,灰茶尺蛾性信息素提取物中有两种成分可引起雄虫触角的电位反应。GC-MS分析结果确定两种活性成分分别为顺3,顺6,顺9-十八碳三烯(Z3,Z6,Z9-18:H)和顺3,顺9-6,7-环氧十八碳二烯(Z3,epo6,Z9-18:H)。田间引诱试验表明,不同比例性信息素在田间显示不同的引诱效果,当Z3,Z6,Z9-18:H和Z3,epo6,Z9-18:H以4∶6的比例配比,总剂量为1βmg时,田间引诱效果最佳。该研究结果为灰茶尺蛾性信息素的应用研究提供了理论基础。

关键词: 灰茶尺蛾, 性信息素, 鉴定

Abstract: Ectropis grisescens Warren is a severe defoliator species in tea garden of China. In this study, the sex pheromone was extracted from abdominal tips of virgin female moths by n-hexane during peak calling period. Analysis of gland extracts by gas chromatography (GC) with electroantennographic detection (EAD) and the components of sex pheromone were identified by gas chromatography (GC) coupled to mass spectrometry (MS). Finally, the biological activity of synthetic sex pheromone was evaluated by field trapping. The result of GC-EAD revealed two components that elicited responses from male moth antennae. Based on the mass spectrum, two components were identified as (Z,Z,Z)-3,6,9-octadecatriene and (Z,Z)-3,9-cis-6,7-epoxy-octadecadiene. In field experiment, different attracting effects were identified under different ratio of sex pheromones. Experiment showed the ratio of 4:6 of these synthetic components showed the maximum attractiveness at 1.0 mg when loaded on rubber septum. This investigation provides a theoretical basis for developing sex pheromone application technology againest Ectropis grisescens.

Key words: Ectropis grisescens, sex pheromone, identification

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