安徽省部分稻茬麦田看麦娘种群对常用ACCase类抑制剂的抗性现状及茎叶处理混用配方筛选  

Resistance status of Alopecurus aequalis to commonly used ACCase inhibitors in some rice-wheat rotation areas of Anhui Province and screening of mixed formula of post-emergence herbicides

作　　者：许锦程 王慧 邢雨诚 项晶 边强[3] 毕亚玲 XU Jincheng;WANG Hui;XING Yucheng;XIANG Jing;BIAN Qiang;BI Yaling(College of Resource and Environment,Anhui Science and Technology University,Fengyang 233100,Anhui Province,China;College of Agriculture,Anhui Science and Technology University,Fengyang 233100,Anhui Province,China;National Pesticide Engineering Research Center(Tianjin),College of Chemistry,Nankai University,Tianjin 300071,China)

机构地区：[1]安徽科技学院资源与环境学院,安徽凤阳233100 [2]安徽科技学院农学院,安徽凤阳233100 [3]南开大学化学学院,农药国家工程研究中心,天津300071

出　　处：《农药学学报》2023年第4期829-842,共14页Chinese Journal of Pesticide Science

基　　金：2022年度安徽省科技重大专项(202203a06020016);安徽省现代农业产业技术体系建设专项.

摘　　要：为明确看麦娘对乙酰辅酶A羧化酶(ACCase)抑制剂类除草剂的抗性现状,在安徽省看麦娘发生严重的稻茬麦田共采集30个种群,采用整株生物测定法分别测定了其对精噁唑禾草灵、炔草酯和唑啉草酯3种ACCase类除草剂的抗性水平。另选择三甲苯草酮、啶磺草胺等7种茎叶处理剂针对发现的高抗种群AHCZ-2进行了生物活性测定,同时将5种药剂与异丙隆混用开展了田间药效评价。结果显示:供试30个田间看麦娘种群中,26个种群对精噁唑禾草灵表现为高水平抗性,占供试种群总数的86.67%,GR_(50)值(有效成分,下同)在230.93~1755.54 g/hm^(2)之间,抗性指数(RI)达12.58~95.66;21个种群对炔草酯表现为高水平抗性,占种群总数的70.00%,GR_(50)值在147.18~1213.44 g/hm^(2)之间,RI达11.93~98.36;19个种群对唑啉草酯表现为高水平抗性,占种群总数的63.33%,GR_(50)值在107.63~614.18 g/hm^(2)之间,RI达12.21~69.69;此外,采自相同地区的看麦娘种群对3种ACCase类药剂的抗性程度较为一致。供试7种茎叶处理剂中,三甲苯草酮和绿麦隆对看麦娘高抗种群AHCZ-2的活性较高,GR_(90)值分别为468.74和1495.85 g/hm^(2),其次为环吡•异丙隆,GR_(90)值为1035.62 g/hm^(2),而异丙隆、啶磺草胺、甲基二磺隆及氟唑磺隆的活性较低。田间筛选结果表明:推荐剂量高剂量(按有效成分计)的甲基二磺隆(15.75 g/hm^(2))、啶磺草胺(15 g/hm^(2))和绿麦隆(2250 g/hm^(2))分别与有效成分1500 g/hm^(2)的异丙隆混用,对看麦娘的防效最好,药后150 d,株防效在91.18%~94.05%之间,鲜重防效在92.40%~95.68%之间,增产率为25.04%~35.08%;其次为环吡•异丙隆937.5 g/hm^(2)的处理,鲜重防效为90.78%,增产率为22.78%。所得结果可为稻茬麦田抗性看麦娘的化学治理提供参考。In order to clarify the resistance status of Alopecurus aequalis to acetyl-CoA carboxylase(ACCase)-inhibiting herbicides,30 populations of A.aequalis were collected from rice-wheat rotation fields in Anhui Province and determined by whole plant bioassay of resistance levels to three ACCase herbicides,including fenoxaprop-P-ethyl,clodinafop-propargyl and pinoxaden.Seven kinds of postemergence herbicides such as tralkoxydim and pyroxsulam were selected for the boi-activity test to highly resistant population AHCZ-2.Five herbicides mixed with isoproturon were employed for the field efficacy evaluation.The results showed that among 30 tested populations,26 populations were highly resistant to fenoxaprop-P-ethyl,accounting for 86.67%of the total tested populations.The GR_(50)value(active ingredients,the same as below)was 230.93-1755.54 g/hm^(2),and resistance index(RI)was 12.58-95.66.Twenty-one populations were highly resistant to clodinafop-propargyl,accounting for 70%of the total tested populations.The GR_(50)value was 147.18-1213.44 g/hm^(2),and RI was 11.93-98.36.The 19 populations were highly resistant to pyraclostrobin,accounting for 63.33%of the total tested.The GR_(50)value ranged from 107.63 to 614.18 g/hm^(2),and RI ranged from 12.21 to 69.69.The resistance of A.aequalis populations collected from the same area to three kinds of ACCases inhibitors was similar.Among the 7 kinds of post-emergence herbicides tested,the activity to highly resistant A.aequalis population AHCZ-2 was higher in tralkoxydim and chlortoluron with GR_(90)of 468.74 g/hm^(2)and 1495.85 g/hm^(2),followed by cypyrafluone-isoproturon with the GR_(90)of 1035.62 g/hm^(2).The activity of isoproturon,pyroxsulam,mesosulfuron-methyl and flucarbazone-Na was low.The field screening results showed that recommended high dose mesosulfuron-methyl(15.75 g/hm^(2)),pyroxsulam(15 g/hm^(2))and chlortoluron(2250 g/hm^(2))mixed with isoproturon at 1500 g/hm^(2)had the best control efficacy on A.aequalis.The plant control efficacy was between 91.18%and 94.05%,

关 键 词：看麦娘 乙酰辅酶A羧化酶 精噁唑禾草灵 炔草酯 唑啉草酯 抗药性 防除效果 

分 类 号：S482.4[农业科学—农药学] S481.4[农业科学—植物保护] TQ450.15[化学工程—农药化工]