31种中草药提取物对柑橘全爪螨的杀螨活性  

Acaricidic activity of 31 plant extracts against Panonychus citri

作　　者：马丽娜[1,2] 胡军华[3] 冉春[3] 李鸿筠[3] 刘浩强[3] 姚廷山[3] 贺磊[3] 雷慧德[3] 

机构地区：[1]西南大学植物保护学院,重庆400716 [2]中国农业科学院柑橘研究所,国家柑橘工程研究中心,重庆400712 [3]中国农业科学院柑橘研究所国家柑橘工程研究中心,重庆400712

出　　处：《植物保护》2009年第3期70-73,共4页Plant Protection

基　　金：国家重点工程科技公益项目(nyhyzx07-057)

摘　　要：室内测定了31种植物的乙醇提取物对柑橘全爪螨的杀螨活性。结果表明：小茴香等4种植物的活性较高，24h校正死亡率大于90％；藁本等7种植物的活性中等，校正死亡率为60％-90％；其余植物提取物的校正死亡率在60％以下。进一步测定了4种植物提取物对柑橘全爪螨的雌成螨和卵的触杀毒力，表明：小茴香对柑橘全爪螨的毒力最高，LC50值分别为0.0658g／L和144.1805g／L，可以作为下一步的研究对象。The acaricidic activities of ethanol extracts of 31 plants against Panonychus citri were measured in the laboratory. The results showed that the extracts of 4 plants （Foeniculum vulgare, etc.） had high activity （corrected mortality rate〉90%） 24 hours after treatment; the extracts of other 7 plants （Mahonia fortunei （Lindl.） Fedde, etc.） had moderate activity （corrected mortality rate 60%-90%）; the rest were low in activity, with their corrected mortality rate below 60%. Contact toxicity curve of the extracts of the 4, plants were further tested. The extract from the seeds of Foeniculum vulgate had the highest activity level against the female adults and eggs of P. cirri, with a LC50 value of 0.0658 g/L and 144.1805 g/L. F. vulgate should be studied in the future.

关 键 词：植物提取物 柑橘全爪螨 杀螨活性 

分 类 号：S436.661[农业科学—农业昆虫与害虫防治]