摘要
采用田间喷雾施药,在陕西省榆林市进行了马铃薯早疫病防治技术研究.开展不同药剂混配的防效比较试验.试验结果表明:不同处理均对早疫病有抑制作用,且存在显著差异,其中:苯酰锰锌+精甲霜锰锌、吡唑醚菌酯+枯草芽孢杆菌、代森锰锌+氟噻唑吡乙酮药剂组合对早疫病防效较好,防效分别为 74.2%、70.3%、67.6%,兼有防控晚疫病作用,建议推广使用;丙森锌+烯酰吗啉、苯酰锰锌+精甲霜锰锌、氟啶胺+氟菌·霜霉威、嘧菌酯+噁酮·霜脲氰处理的防效较差,依次为:58.9%、54.6%、50.8%和50.5%.
Abstract
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.
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