Position: Home > Articles > Insecticidal activities of nine compounds extracted from Cacalia tangutica
Journal of South China Agricultural University
2014
(1)
70-74
从羽裂蟹甲草分离的9种化合物的杀虫活性
作 者：
黄继光;杨文杰;桑晓清;赵欢欢
单 位：
华南农业大学资源环境学院/天然农药与化学生物学教育部重点实验室
关键词：
羽裂蟹甲草;化学成分;杀虫活性
摘 要：
【目的】在前期研究基础上,系统评价羽裂蟹甲草Cacalia tangutica的杀虫活性.【方法】采用触杀、胃毒和点滴等方法测定了羽裂蟹甲草中9种化学成分对家蝇Musca domestica、致倦库蚊Culex pipiens quinquefasciatus、菜粉蝶Pieris rapae、亚洲玉米螟Ostrinia furnacalis、红火蚁Solenopsis invicta的生物活性.【结果和结论】无羁萜对家蝇3龄幼虫的触杀活性明显,1μg/头点滴处理后48 h,校正死亡率达到86.18%,与鱼藤酮(85.67%)无显著差异.无羁萜和山奈酚对致倦库蚊4龄幼虫的毒杀活性与鱼藤酮不显著,处理后72 h,校正死亡率均超过80%.此外,无羁萜对菜粉蝶3龄幼虫、亚洲玉米螟4龄幼虫、红火蚁表现出了一定的触杀活性,无羁萜、槲皮素和山奈酚对红火蚁还具有较明显的胃毒活性.结果表明无羁萜、槲皮素、山奈酚是羽裂蟹甲草中的活性成分.
译 名：
Insecticidal activities of nine compounds extracted from Cacalia tangutica
作 者：
HUANG Jiguang;YANG Wenjie;SANG Xiaoqing;ZHAO Huanhuan;Key Laboratory of Natural Pesticide and Chemical Biology of Ministry of Education/College of Natural Resources and Environment,South China Agricultural University;
关键词：
Cacalia tangutica;;chemical ingredients;;insecticidal activity
摘 要：
【Objective】To assess the insecticidal activities of Cacalia tangutica based on previous researches. 【Method】The activities of several compounds from Cacalia tangutica against Musca domestica,Culex pipiens quinquefasciatus,Pieris rapae,Ostrinia furnacalis,Solenopsis invicta were bioassayed by contact,stomach poison and drop treatment. 【Result and conclusion】The results indicated that friedelin possessed a strong contact toxicity against third-instar larvae of M. domestica,and the corrected mortality was 86. 18% after treatment for 48 h with 1 μg each larva by topical application,which was not significantly different from that of rotenone( 85. 67%). Friedelin,kaempferol and rotenone were equitoxic to fourth-instar larvae of C. pipiens quinquefasciatus. The corrected mortalities after treatment for 72 h were more than 80%. Moreover,friedelin had some degree of contact toxicities against third-instar larvae of P. rapae,fourth-instar larvae of O. furnacalis and S. invicta. Friedelin,quercetin and kaempferol had obvious stomach poison activities to S. invicta. Generally friedelin,quercetin and kaempferol are the active ingredients of C. tangutica.
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