Abstract:In order to screen out fungicides with high efficiency,quick effect and good environmental compatibility to control the grape downy mildew,16 fungicides were chosen for field efficacy test.The experimental results showed that the control effects of 22.5%Picoxystrobin SC,40% Famoxadone SC,60%Ametoctradin WG,20%Fluopicolide SC and 40% Dimethomorph SC were good,and the control effects of the recommended dosages were 85.16%,84.48%,84.43%,80.82%,80.07%,respectively,all of which were above 80%, which should be demonstrated and popularized. |