广藿香精油对斜纹夜蛾拒食活性  

Antifeedant activity of Pogostemon cablin essential oils against Spodoptera litura

作　　者：曾庆钱 严振 莫小路 王玉生[2] 汪小根[2] 

机构地区：[1]广东省中药研究所,广州510520 [2]广东化工制药职业技术学院,广州510520

出　　处：《农药》2006年第6期420-421,共2页Agrochemicals

基　　金：广东省自然科学基金资助项目(012383);广东省中医药管理局资助项目(300006)

摘　　要：采用不同浓度的广藿香的全草精油,研究其对斜纹夜蛾幼虫拒食作用。试验使用2.5～40mg/ml广藿香油分别对斜纹夜蛾幼虫进行饲喂。结果都表现出较强烈的拒食活性。在非选择性条件下处理后24h的拒食中浓度AFC50为68.88μg/ml,处理后48h的AFC50为94.40μg/ml。在选择性条件下处理后24h的拒食中浓度AFC50为36.23μg/ml。Research was conducted on the antifeedant efficacy of essential oils from whole plants of Pogostemon cablin （Blanco） Benth in Spodoptera litura Fab caterpillars. Feeding studies included essential oil treatments of 2.5 to 40 mg/ml, Results indicated a strong antifeedant activity. Under no-choice conditions, the 24-h AFC50 （antifeedant concentration） was 68.88 μg/ml, while the 48-h AFCso was 94.40 μg/ml. The 24-h choice AFC50 was 36.23μg/ml.

关 键 词：广藿香 精油 拒食活性 

分 类 号：S482.3[农业科学—农药学]