陕西省植物保护工作总站根据病菌菌源、品种抗性、气象条件等因素综合分析,预计今年陕南春播马铃薯晚疫病中等发生,山区局部偏重发生,发生面积80万亩,发病盛期5月下旬至6月中旬。据介绍,马铃薯晚疫病为典型的气候型流行性病害,花期易感病,此期一旦遇高温高湿天气,病害流行速度快,易普发。陕西省植物保护工作总站要求各地植 According to the comprehensive analysis of factors such as bacterial source, variety resistance and meteorological conditions, Shaanxi Plant Protection Work Station is expected to have a moderate occurrence of late blight of spring potato in southern Shaanxi this year. Partial mountainous area occurs with partial emphasis, with an area of ​​800,000 mu and a peak in late May To mid-June. According to reports, potato late blight is a typical climate-type epidemic disease, flowering susceptible to disease, this period in case of high temperature and humidity weather, disease epidemic fast, easy to Pfa. Shaanxi Provincial Plant Protection Station requires planting around