河南省猪殃殃对苯磺隆的抗性检测

摘要

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 tribenuron-methyl was tested by using the whole-plant bioassay.The results indicated that 25 populations (69.44%)were re-sistant,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.%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。