香泽兰提取物微胶囊剂对小菜蛾产卵驱避作用研究  

Ovipositional repellency of the microcapsules of the extracts from Eupatorium odoratum on Plutella xylostella

作　　者：劳传忠[1] 曾玲[1] 章玉苹[1] 陆永跃[1] 

机构地区：[1]华南农业大学昆虫生态研究室/红火蚁研究中心,广州510642

出　　处：《植物保护》2007年第2期58-61,共4页Plant Protection

基　　金：国家自然科学基金重点项目(39930120);国家自然科学基金项目(30471169);国家发展和改革委员会国家高技术产业化现代农业专项(040705011190316)

摘　　要：试验观察了创制的香泽兰提取物微胶囊剂对小菜蛾成虫产卵的驱避作用。室内测试结果表明香泽兰提取物微胶囊剂对小菜蛾产卵具明显的驱避活性,随着使用浓度升高而驱避活性逐渐增强,处理后2d,500～4000mg/kg时小菜蛾着卵量分别降低了67%～91%;随着处理时间延长驱避作用逐渐下降,但持效期较长,处理6d后2000mg/kg驱避效果仍可达到84%。田间使用香泽兰提取物微胶囊剂防治小菜蛾产卵的驱避作用好、持效期长,使用8d后各浓度效果均可达到80%以上,最高可达94%。The ovipositional repellency of the microcapsules of the extracts from Eupatorium odoratum on Plutella xylostella L. （Lepidoptera： Plutellidae） was studied in laboratory and fields. The results revealed that the ovipositional repellency of the microcapsules was high and the effect lasted for a long period of time in laboratory. The microcapsules were used to control diamondback moths in fields and it was found that the quantity of eggs was reduced obviously with a long duration.

关 键 词：小菜蛾 香泽兰 微胶囊剂 产卵驱避作用 

分 类 号：S482.39[农业科学—农药学]