氰烯菌酯与己唑醇对小麦纹枯病菌联合毒力测定  

Studies on the Synergistic Effects of JS399-19 and Hexaconazole to Rhizoctonia cerealis and R. solani

作　　者：耿忠义[1] 张立霞 辛相启 赵京岚[1] 赵玖华 

机构地区：[1]泰山职业技术学院,山东泰安271000 [2]山东东平县州城农技站,山东东平271500 [3]山东省农科院植物保护研究所/山东省植物病毒学重点实验室,济南250100

出　　处：《中国农学通报》2014年第4期283-287,共5页Chinese Agricultural Science Bulletin

基　　金："十二五"国家科技支撑计划课题"山东省主要旱粮作物重大病虫害防控技术研究与集成示范"(2012BAD19B04-09)

摘　　要：为明确氰烯茵酯与己唑醇不同比例混配对小麦纹枯病菌联合作用类型，采用茵丝生长速率法测定了氰烯茵酯与己唑醇及其5种配比对小麦纹枯病茵的毒力。结果表明，氰烯茵酯与己唑醇及其1：5、1：7、l：9、1：11、1：13等混配组合对禾谷丝核茵的EC50分别是0．212、0．339、0．227、0．207、0．213、0．315、0．320mg／L，5种混配组合对禾谷丝核茵的增效系数（SR）分别是1．35、1．52、1．51、1．02、1．02；对立枯丝核茵的EC50分别是0．452、2．984、1．091、1．139、1．217、1．280、1．781mg／L，增效系数（SR）分别是1．41、1．54、1．57、1．59、1．20；氰烯茵酯与己唑醇1：（7-9）混配对小麦纹枯病菌有增效作用。In order to clarify the synergistic effects of mixed JS399-19 and Hexaeonazole to Rhizoetonia cerealis and R. solani and to find the best mixed ratio of two preparations, the JS399-19 and Hexaconazole and their mixtures-made up by mixing the two pesticides in five different ratios, on Rhizoctonia cerealis and R. solani were tested by mycelial growth rate method. Experimental results demonstrated that ECso of JS399-19, Hexaconazole, and their five different ratios to Rhizoctonia cerealis were 0.212, 0.339, 0.227, 0.207, 0.213, 0.315, 0.320 mg/L. The efficiency coefficients of the five different ratios to Rhizoctonia cerealis were 1.35, 1.52, 1.51, 1.02, 1.02. Experimental results demonstrated that ECso of JS399-19, Hexaconazole, and their five different ratios to R. solani were 0.452, 2.984, 1.091, 1.139, 1.217, 1.280, 1.781 mg/L. The efficiency coefficients of the five different ratios to R. solani were 1.41, 1.54, 1.57, 1.59, 1.20. The mixed ratio of two preparation 1 ：（7-9） to Rhizoctonia eerealis and R. solani had synergistic effects.

关 键 词：氰烯菌酯 己唑醇 禾谷丝核菌 立枯丝核菌 小麦纹枯病 联合毒力 

分 类 号：S482.2[农业科学—农药学]