马铃薯晚疫病概况马铃薯晚疫病是一种导致马铃薯茎叶死亡和块茎腐烂的毁灭性病害。凡是种植马铃薯的地区都有发生,其损失程度视当年当地的气候条件而异,在多雨、冷凉、适于晚疫病流行的地区和年份,病害极易暴发流行,植株大面积提早死亡,造成严重的产量损失。植株提前枯死,损失20%~40%。19世纪40年代,晚疫病在爱尔兰的流行和为害举世震 Potato Late Blight Overview Potato Late Blight is a devastating disease that causes the death of potato stems and tubers. All areas where potato is planted occur. The extent of the loss varies according to the local climate conditions of the year. In areas where rainfall and cold are suitable for late blight, the disease is extremely prone to outbreak and the plant is prematurely died on a large area. Serious yield loss. Plants die early, with a loss of 20% to 40%. The 1840s, late blight epidemic in Ireland and the world earthquake