摘要
研究4种植物源杀虫剂对褐飞虱的毒力,为田间使用植物源杀虫剂防治褐飞虱提供参考。在室内条件下,采用稻茎浸渍法和药膜法测定了4种植物源杀虫剂对褐飞虱3龄若虫和成虫的毒力。两种方法测定结果表明,鱼藤酮对褐飞虱3龄若虫和成虫的毒力最低,LC_(50)分别为10.7791,14.9197,21.4638mg/L,毒力最高的为藜芦碱,LC_(50)分别为0.7688,1.1852,1.4366mg/L。4种植物源杀虫剂中藜芦碱、苦参碱和烟碱.苦参碱对褐飞虱具有较好的防治效果。
In order to provide reference for controlling Nilaparvata lugens（Stl） ,the toxicities of 4 kinds of botanical insecticides Against N.lugens were studied.Rice stem dipping method and toxic film method were used to test the toxicities of 4 kinds of botanical insecticides on the third instar nymphs and adults of N.lugens under laboratory conditions.The results tested by rice stem dipping method and toxic film method showed that the weakest toxicity was rotenone on the third instar nymphs and adults of N.lugens,and the values of LC 50 were 10.7791,14.9197,21.4638 mg/L,respectively.The toxicity of veratrine was strongest,and the values of LC 50 were 0.7688,1.1852,1.4366 mg/L,respectively.Among 4 kinds of botanical insecticides on the N.lugens,veratrine,matrine and nicotine·matrine had a better control effect.
出处
《中国农学通报》
CSCD
北大核心
2011年第30期222-226,共5页
Chinese Agricultural Science Bulletin
基金
973计划前期研究专项"喀斯特区域水稻"两迁"害虫成灾机理及可持续控制的相关基础研究"(2009CB125908)
贵州省农业科技攻关项目"贵州水稻"两迁"害虫成灾机理及可持续控制研究"(黔科合NY字[2010]3064)
贵州省农业科技攻关项目"红香米有机高产栽培病虫害防治关键技术研究"(黔科合NY字[2010]3005)
贵州省教育厅自然科学研究项目"贵州水稻"两迁"害虫成灾机理及可持续控制研究"(黔教2010011)
贵阳市社会发展攻关项目"红枫湖周边农业病虫害无残留治理研究与示范"(2009筑科农合同字第3-043号)
关键词
褐飞虱
杀虫剂
毒力测定
Nilaparvata lugens（Stl）
insecticides
toxicity determination
