中国和越南褐飞虱抗药性研究

（1.广西农业科学院植物保护研究所南宁530007；2.广西农业科学院水稻研究所/广西水稻遗传改良重点实验室南宁530007；3.广西大学农学院南宁530005）摘要2010年用稻茎浸渍法监测了我国和越南共14个褐飞虱nilaparvatalugens(stl)田间种群对5种杀虫剂的抗性，结果表明：14个褐飞虱田间种群对吡虫啉、噻嗪酮、氟虫腈、吡蚜酮和叶蝉散的lc50值分别在95287~466716、16621~178785、09818~84084、03315~125127和140914~1871706mga.i./l之间，抗性倍数分别为10587~51887、620~6671、2517~21560、017~656和363~4824倍。目前褐飞虱田间种群对吡虫啉属高到极高水平抗性，对噻嗪酮属低至高水平抗性，对氟虫腈属中至极高水平抗性，对吡蚜酮为敏感至低水平抗性，对叶蝉散为中等至高水平抗性。关键词中国,越南,褐飞虱,抗药性studiesonthepesticideresistantofnilaparvatalugens(stl)inchinaandvietnamlingyan1huangfengkuan1longliping2**zhongyong3yinwenbing3huangsuosheng1wubiqiu1(1.plantprotectionresearchinstitute,guangxiacademyofagriculturalsciences,nanning530007,china；2.riceresearchinstitute，guangxiacademyofagriculturalsciences/guangxiricegeneticimprovementlaboratory,nanning530007，china；3.agriculturalcollege，guangxiuniversity,nanning530005,china)abstractthepesticideresistanceofdifferentbrownplanthopperpopulationsfromchinaandvietnamwasinvestigatedbythericestrawdippingmethodin2010.theresultsshowthatthelc50toimidacloprid,buprofezin,fipronil,pymetrozineandisoprocarbwere9.5287-46.6716,1.6621-17.8785,0.7426-8.4084,0.3315-12.5127and14.0914-187.1706mga.i./l,respectivelyandtherespectiveresistanceratios105.87-518.87,6.20-66.71,25.17-215.60,0.17-6.56and3.63-48.24.atpresent,resistancetofipronilwaslowtohigh,resistancetoimidaclopridwashightoextremelyhigh,whereasresistancetobuprofezinwasmediumtohigh.bphpopulationsinbothvietnamandchinaaresensitivetoslightlyresistanttopymetrozine,andmoderatelytohighlyresistanttoisoprocarb.keywordschina,vietnam,nilaparvatalugens,pesticideresistance