河南省猪殃殃对苯磺隆的抗性检测

Detection of bedstraw resistance to tribenuron-methyl in Henan Province

为了明确河南省猪殃殃对苯磺隆的抗性水平及分布现状,通过温室整株生物测定法,测定了河南省境内36个猪殃殃种群对苯磺隆的敏感性。结果表明,河南省大部分猪殃殃种群已经对苯磺隆产生了不同程度的抗性,所测样品中,高抗种群3个,中抗种群9个,低抗种群13个,共25个,占总采样数的69.44%;敏感种群11个,占30.56%。说明苯磺隆在河南多地存在高抗性风险,同类乙酰乳酸合成酶抑制剂类除草剂需科学施用。

In order to detect the resistance levels and distributions of bedstraw to tribenuron-methyl in Henan Province,36 populations of the bedstraw were collected from wheat fields and their susceptibility to tribenuronmethyl was tested by using the whole-plant bioassay.The results indicated that 25 populations（69.44%）were resistant,including 3 high-level,9 mid-level and 13 low-level resistant populations,while the rest 11 populations（30.56%）were susceptible.The data showed that there were high resistant risk to tribenuron-methyl in wheat fields in Henan,and the ALS inhibitors should be applied in scientific way.