Field control efficacies of different fungicides and mixtures against Fusarium head blight
In order to clarify the field efficacies of different fungicides against Fusarium head blight,field trials were conducted in Xinxiang,Jiaozuo and Nanyang.The results showed that epoxiconazol 125 g/L SC 720 g/hm2 and phenamacril 25%SC 2 400 g/hm2 were more effective among single agents,and the disease index efficacies were 78.84%-83.97%.Pyraclostrobin·epoxiconazol 17%SE 882 g/hm2 and tebuconazole·azoxystrobin 75%WG 199.5 g/hm2 were more effective among mixtures,and the disease index efficiencies were 80.41%-92.31%.The results of the study provided technical support for more efficient and scientific control of Fusarium head blight and reduce the risk of fungicide resistance.
Fusarium head blightfungicidefield efficacymixture