天葵石油醚油状粗提物对菜青虫、小菜蛾的拒食活性研究  

Antifeeding activity of petroleum ether oil abstracted from semiaquilegia adoxoides(DC) makino against Pieris rapae L.and Plutella xylostella (Linnaeus)

作　　者：罗世琼[1] 李明[2] 熊继文[2] 

机构地区：[1]贵州师范大学生物技术与工程学院,贵州贵阳550001 [2]贵州大学植保系,贵州贵阳5500025

出　　处：《贵州师范大学学报（自然科学版）》2007年第1期9-11,22,共4页Journal of Guizhou Normal University：Natural Sciences

基　　金：贵州省"八五"科技攻关项目;贵州省教育厅自然科学基金项目

摘　　要：研究报道了石油醚油状粗提物对菜青虫、小菜蛾的拒食作用。结果表明石油醚油状粗提物具有明显的拒食活性,对菜青虫、小菜蛾幼虫的选择性拒食作用中浓度AFC50分别为1.51mg/mL、1.82mg/mL;非选择性拒食作用中浓度AFC50分别为1.94mg/mL、4.78mg/mL。8mg/mL处理后24h对试虫的选择性拒食率分别为89.17%、82.41%;非选择性拒食率分别为75.68%、67.05%。It is reported that petroleum ether oil abstract of semiaquilegia adoxoides （DC） makino exhibits a high level of antifeeding activity against Pieris rapae L. and Plutella xylostella （Linnaeus）. In the experiment, the median selective antifeeding concentrations are 1.51 mg/mL, 1.82 mg/mL and the median unselective antifeeding concentrations are 1.94mg/mL and 4.78 mg/ml respectively. The rates of selective antifeedant are 89.17% 82.41% and unselective antifeedant are 75.68% and 67.05% respectively after 24 hours when the larva is tested in 8mg/mL petroleum ether oil abstract.

关 键 词：天葵 石油醚油状粗提物 菜青虫 小菜蛾 拒食作用 

分 类 号：Q965[生物学—昆虫学]