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对闽东沿海区域冬种马铃薯晚疫病分布、田间流行规律与防控措施进行了研究。明确了闽东地区是冬种马铃薯晚疫病的适生区;马铃薯品种间存在抗病性差异,供试马铃薯品种的抗病性强弱为紫花851>闽薯1号>中薯3号>福克76>大西洋>费乌瑞它;影响冬种马铃薯晚疫病流行的气候因素是3～4月份的降雨和田间湿度;2月下旬是冬种马铃薯晚疫病的始发期,3月中旬至4月中、下旬为病害盛发期和流行期。687.5 g/L氟菌·霜霉威SC对马铃薯晚疫病防治效果好,防治效果达86%以上。
The distribution of potato late blight in winter coastal areas in Fujian Province, field epidemic and control measures were studied. It is clear that winter is the suitable area for potato late blight in winter in Fujian Province. There is a difference in disease resistance between potato varieties. The resistance of the tested potato varieties is Violet 851> Minshu 1> Zhongshu 3> Fu G 76> Atlantic Ocean> Feirui It; the climatic factors influencing the epidemic of potato late blight in winter are the rainfall and field humidity from March to April; the late winter is the onset of late blight of potato in late March, Mid-month and late for the disease Sheng period and epidemic period. 687.5 g / L Fluorfenapamor SC against potato late blight prevention and control effect is good, control effect of more than 86%.