Inhibition Effect and Synergistic Effect of Prochloraz and Tebuconazole and Their Mixture on Fusarium graminearum  

作　　者：Zhang Xing Zhang Lin He Yiqin Lu Chen Fang Zhengwu Zhao Mingmin Zhu Yongxing Ma Dongfang 

机构地区：[1]Hubei Collaborative Innovation Center of Main Grain Crop Industrialization/Collage of Agriculture,Yangtze University [2]Hubei Provincial Bureau of Agricultural Reclamation Management

出　　处：《Plant Diseases and Pests》2017年第6期28-30,共3页植物病虫害研究（英文版）

基　　金：Supported by Natural Science Foundation of Hubei Province(2016CFB478);Youth Talent Program of Hubei Department of Education(D200712004)

摘　　要：Wheat scab caused by Fusarium graminearum is increasingly severe in the middle and lower reaches of the Yangtze River region. With long-term use of single chemical pesticide,the drug resistance of F. graminearum is growing day by day. In order to reveal the inhibition effect and synergistic effect of prochloraz and tebuconazole and their mixture on F. graminearum,new compound agents for controlling wheat scab were developed. The inhibition effect and synergistic effect of prochloraz and tebuconazole mixed at seven different ratios on F. graminearum were studied. The results showed that the efficiency of the mixture was the best when the proportion of prochloraz and tebuconazole was 1:7; the EC50 was 0.145 36 and the synergistic coefficient was 1.853 9. The results provide a theoretical basis for development of new compound agents and effective control of wheat scab.Wheat scab caused by Fusarium graminearum is increasingly severe in the middle and lower reaches of the Yangtze River region. With long-term use of single chemical pesticide,the drug resistance of F. graminearum is growing day by day. In order to reveal the inhibition effect and synergistic effect of prochloraz and tebuconazole and their mixture on F. graminearum,new compound agents for controlling wheat scab were developed. The inhibition effect and synergistic effect of prochloraz and tebuconazole mixed at seven different ratios on F. graminearum were studied. The results showed that the efficiency of the mixture was the best when the proportion of prochloraz and tebuconazole was 1:7; the EC50 was 0.145 36 and the synergistic coefficient was 1.853 9. The results provide a theoretical basis for development of new compound agents and effective control of wheat scab.

关 键 词：FUSARIUM GRAMINEARUM PROCHLORAZ TEBUCONAZOLE Compound agent Sensitivity 

分 类 号：S435.121.45[农业科学—农业昆虫与害虫防治]