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
