黃荊提取物的杀虫生物活性研究  

Study on Insecticidal Activity of Vitex negundo Extracts

作　　者：廖世纯[1] 曾涛[1] 韦桥现[1] 

机构地区：[1]广西农业科学院植物保护研究所,南宁530007

出　　处：《中国农学通报》2006年第6期304-306,共3页Chinese Agricultural Science Bulletin

基　　金：国家自然科学基金项目"广西特有植物源农药的应用基础研究"(302690020);广西自然科学基金项目"黄荆素杀虫;杀菌生物活性研究"(桂科基0009014");防治稻瘿蚊的农药新品种研究与开发"(桂科基0448027)资助。

摘　　要：研究表明黃荊的叶、种籽及根皮均含有杀虫、拒食的生物活性,但活性物主要在叶部和种子。黃荊叶片的二甲苯提取物对菜青虫、斜纹夜蛾幼虫及菜蚜有较高的杀虫活性,其LC50分别达186倍、259倍及371倍;它同时对菜青虫有较强的拒食作用。The results showed that the extracts of foliage, seed, and root-cortex of Vitex negundo contain some insecticidal activity against pests, but the primary insecticidal activity were in foliage and seed. The extracts of dimethylbenzene in foliage, not only had the higher insecticidal activity against Pieris rapae（L.）, Prodenia litura （Fabrieius）, and Myzus persicae （Sulzer） of which the LC50 values was 186 times, 259 times, and 371 times respectively, but also had the more anti-feeding effect against Pieris rapae（L.）.

关 键 词：黄莉 提取物 蔬菜害虫 杀虫活性 

分 类 号：S482.3[农业科学—农药学]