7种精油对甜菜夜蛾的拒食活性  

Antifeedant Activity of Seven Essential Oils against Spodoptera exigua

作　　者：冯学环[1] 蒋红云[1] 何伟志[1] 张燕宁[1] 

机构地区：[1]中国农业科学院植物保护研究所植物病虫害生物学国家重点实验室,北京100193

出　　处：《农药》2010年第7期530-532,共3页Agrochemicals

基　　金："十一.五"国家科技支撑计划(2006BAD08A03)

摘　　要：通过水蒸气蒸馏法从白术、佩兰、侧柏、紫苏子、白胡椒、化橘红和败酱草中提取植物精油,采用叶碟法测定了7种精油对3龄甜菜夜蛾幼虫的拒食活性。结果表明:在10g/L质量浓度下,白术、佩兰、紫苏子、侧柏精油对试虫表现出较强的拒食活性,48h后的选择性拒食率分别为96.36%、94.33%、95.09%、74.33%,非选择性拒食率分别为92.45%、77.66%、83.01%、60.49%。其中白术的选择性和非选择性拒食活性最好,具有很好的研究价值和实践意义。Seven essential oils of Atractylodes macrocephala Koidz.,Patrinia villosa Juss.,Platycladus orientalis(Linn.) Franco,Perilla frutescens(L.) Britt.,Piper nigrem L.,Citrus grandis(L.) Osbeck,and Eupatorium fortunei Turcz.,were extracted through steam distillation.Leaf disc choice bioassays were employed to investigate antifeedant activities of the seven essential oils against to the 3rd Spodoptera exigua larvae.The bioassay results showed that the essential oil of A. macrocephala,P.villosa,P.frutescens and P....

关 键 词：精油 甜菜夜蛾 拒食活性 

分 类 号：S482.3[农业科学—农药学]