毛莲蒿精油对玉米象（Sitophilus zeamais）的化学成分及杀虫活性

Chemical composition and insecticidal activity of the essential oil of Artemisia eriopoda against maize weevil, Sitophilus zeamais.

作者信息

Jiang Guo Hua, Liu Quan Ru, Chu Sha Sha, Liu Zhi Long

机构信息

Analytic and Testing Center, Beijing Normal University, Xinjiekouwai Street, Haidian District, Beijing 100875, China

出版信息

Nat Prod Commun. 2012 Feb;7(2):267-8.

PMID:22474977

Abstract

In our screening program for new agrochemicals from local wild plants, Artemisia eriopoda was found to possess insecticidal activities against the maize weevil, Sitophilus zeamais. The essential oil of the aerial parts of A. eriopoda was obtained by hydrodistillation and investigated by GC and GC-MS. The main components of the essential oil are germacrene D (21.6%) and eucalyptol (14.2%). The essential oil possesses fumigant toxicity against S. zeamais adults with a LC50 value of 11.5 mg/L air and also shows contact toxicity against S. zeamais adults with a LD50 value of 24.8 microg/adult, respectively.

摘要

在我们从当地野生植物中筛选新型农用化学品的项目中，发现野艾蒿对玉米象（Sitophilus zeamais）具有杀虫活性。通过水蒸馏法获得了野艾蒿地上部分的精油，并采用气相色谱（GC）和气相色谱 - 质谱联用（GC - MS）技术进行了分析。该精油的主要成分是大根香叶烯D（21.6%）和桉叶油素（14.2%）。该精油对玉米象成虫具有熏蒸毒性，其LC50值为11.5毫克/升空气，对玉米象成虫也表现出接触毒性，LD50值分别为24.8微克/成虫。