Field Efficacy Trial on Mixed Fungicides against Potato Early Blight in Yulin Area
To effectively prevent and control potato early blight,the control technology was investigated in Yulin area,Shaanxi Province.The field spraying was used to compare the efficacy of different pesticide mix-tures.The results showed that different treatments had inhibitory effects on early blight,with significant differ-ences.Among them,the combination of benzoyl mancozeb+metalaxylmancozeb,pyraclostrobin+Bacillus subtilis,mancozeb+fluthiazolylpyrazole ethyl ketone had better control effect on early blight,which were 74.2%,70.3%and 67.6%,respectively,and had effect on preventing and controlling late blight,which was recommended for widespread use.The control effects of propineb+dimethomorph,mancozeb+metalaxyl,flu-azinam+fludioxonil·propamocarb,azoxystrobin+oxone·cymoxanil were 58.9%,54.6%,50.8%and 50.5%,respectively.
NETL
NSTL
万方数据
