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据全国农技推广服务中心监测,水稻、棉花、蔬菜主要害虫对田间常用防治药剂抗性水平显著上升,亟需优化防治策略。水稻褐飞虱、二化螟抗药性堪忧在南方水稻主产省28个监测点监测发现,褐飞虱对吡虫啉、噻嗪酮都已产生高水平抗性,与2013年相比,褐飞虱对噻嗪酮抗性倍数大幅提升,抗性倍数都在100倍以上;对吡蚜酮处于中等至高水平抗性。据南京农业大学、广西农科院植保所反映,与前几年相比,褐飞虱对吡蚜酮抗性水平上升很快,室内毒力测定2000毫克/升浓度的吡蚜酮死亡率不到20%。二化螟对杀虫剂抗性分布具有明显的地区性,浙江、安徽、江西、湖南等
According to the National Agricultural Technology Extension Service Center monitoring, major pests of rice, cotton, vegetables in the field commonly used in the prevention and treatment of drug resistance levels increased significantly, the need to optimize the prevention and control strategies. Nilaparvata lugens, Chilo suppressalis resistance In the southern monitoring of rice production in 28 monitoring points found that the brown planthopper on imidacloprid, buprofezin have produced high levels of resistance compared with 2013, the Nilaparvata l buprofezin resistance to buprofezin Multiples increased significantly, the resistance multiple of more than 100 times; Pymetrozine moderate to high level of resistance. According to Nanjing Agricultural University, Guangxi Academy of Agricultural Sciences Institute of Plant Protection reflect, compared with previous years, Nilaparvata lugens on pymetrozine resistance levels rose rapidly indoor toxicity determination of 2000 mg / L concentration of pymetrozine mortality less than 20 %. Chilo suppressalis insecticide resistance distribution has obvious regional, Zhejiang, Anhui, Jiangxi, Hunan, etc.