摘要
研究了江苏省３个地区水稻三化螟对有机磷、沙蚕毒素杀虫剂的耐药性。结果表明：不同地区的水稻三化螟对甲胺磷、杀虫双的耐药力有明显差异，其中高淳种群对甲胺磷、杀虫双具有很强的耐药力。以广东翁源种群为相对敏感种群，高淳、邗江、如皋种群对杀虫双的抗性倍数分别为１２．４、４．４和５．１倍。如皋、高淳和邗江种群对杀虫单的敏感性差异不大。
Insecticide toerance of paddy borer (Tryporyza incertulas walker) to 3 insecticides was tested in Jiangsu province. Eggs were collected from three ricecultivated regions: Hanjiang county, Gaochun county and Rugao county. The results showed that the borers from different regions exhibited quite different tolerance to the methamidophos and dimehypo. The borers in Gaochun county was the most tolerant to methamidophos and dimehypo. No local different tolerance to monosultap were found among the individuals collected from three areas.
基金
江苏省"九五"农业科技重大攻关资助
关键词
水稻
杀虫剂
三化螟
耐药性
rice
insecticidtolerance
Tryporyza incertulas
