吴茱萸乙醇提物对菜青虫的拒食活性研究  

Study on the Antifeedant Activity of Ethanol Extracts from Evodia rutaecarpa(Juss.) Benth.against Pieris rapae L.

作　　者：蒋春先[1] 周顺玉[2] 李庆[1] 王海建[1] 杨群芳[1] 

机构地区：[1]四川农业大学农学院,四川雅安625014 [2]信阳农业高等专科学校,河南信阳464000

出　　处：《安徽农业科学》2008年第1期229-230,共2页Journal of Anhui Agricultural Sciences

基　　金：四川省教育厅资助项目(2003A002)

摘　　要：[目的]为菜青虫的无公害化防治以及开发吴茱萸作为环保型农药提供试验依据。[方法]室内测定吴茱萸乙醇提取物对菜青虫幼虫的拒食活性。[结果]结果表明:采用液—液萃取法对吴茱萸乙醇提取物进行了初步分离,水相对菜青虫幼虫的拒食活性最强,其选择性拒食活性和非选择性拒食活性较分离前分别提高了32.48%和22.37%。[结论]吴茱萸乙醇提取物对菜青虫幼虫有较强的选择性和非选择性拒食活性,提取物浓度越高,作用效果越明显。[ Objective] The purpose of this research was to provide test base for controlling Pieris rapae L, with non-pollution and developing Evodia rutaecarpa （Juss.） Benth as the environmental protection type pesticide. [Method] The antifeedant activity of ethanol extracts from E. naaecarpa against P. rapae was determined in the laboratory, [Result] After the ethanol extracts from E. rutaecarpa was separated by liquid liquid extraction method primarily, the water phase had the strongest antifeedant activity against P. rapae larval, with the choice and non-choice antifeedant activity were increased 32.48% and 22.37% resp. than that before separation. [Conclusion] The ethanol extracts from E. naaecarpa had strong choice and non-cholce antifeedant activity against P. rapae. The higher the extract concentration was, the mere obvious the effect was.

关 键 词：吴茱萸 菜青虫 拒食作用 

分 类 号：S482.39[农业科学—农药学]