晚疫病是缅甸马铃薯最严重的病害之一。在广泛种植雨季作物的山州高地 ,马铃薯晚疫病每年在 7月至 9月发生。在这个地区每年 40 %～ 5 0 %的茎叶枯萎造成 2 1%～ 46 %的产量损失。因为在缅甸没有合适的抗晚疫病品种 ,所以用杀菌剂防治雨季作物的晚疫病。可是 ,农民因为应用杀菌剂昂贵 ,仅依靠早播躲避病害。他们惯用的方法是储存种薯 ,丢弃病薯和用大间距种植无病薯。 Late blight is one of the most serious diseases of Burma’s potato. Late blight occurs in July and September every year in the mountainous, mountainous area, where the rainy season crops are widely planted. In the area, 40% ~ 50% of the annual shoot blight causes 21% ~ 46% yield loss. Because there is no suitable anti-late blight variety in Myanmar, fungicides are used to control late blight in rainy season crops. However, peasants rely on early sowing to avoid disease because of the high cost of using germicides. Their usual method is to store seed potatoes, discard them and plant them with large spaces.