据全国多地监测.当前马铃薯晚疫病在西南低海拔山区和华中地区的春播田处于发病盛期,总体中等发生。截至5月16日,全国有贵州、四川、云南、重庆、湖北、陕西和山东等省(市)发生,发病面积200.9万亩。据监测结果,当前重庆市中等(3级)发生,局部地区偏重(4级)流行,发生面积75.0万亩,总体水平 According to the national monitoring, the current potato late blight in the low altitude mountainous areas in southwest China and the spring sowing area in central China is in the peak incidence, the overall occurrence of moderate. As of May 16, Guizhou, Sichuan, Yunnan, Chongqing, Hubei, Shaanxi and Shandong provinces (cities) occurred throughout the country with an area of ​​200.9 mu. According to the monitoring results, the current prevalence of Chongqing Municipality (Grade 3) occurred, some areas are prevalent (Grade 4) prevalence, the area of ​​750,000 mu, the overall level