近日,有行唐、灵寿读者来电话问,由于连续多年重茬种植冷棚马铃薯,病虫害呈逐年上升的趋势,其中以马铃薯的粉痂病发生比较严重,问怎样很好的去预防。马铃薯的粉痂病是鞭毛菌亚门真菌性病害。粉痂病主要为害薯块及根部,有时茎也可染病。一旦感染病害,其商品薯品质外观就会大打折扣,价格降低,严重影响经济效益。 Recently, the Tang Dynasty, Lingshou readers call to ask, as many years of continuous cropping planted potatoes, pests and diseases showed an upward trend year by year, of which the potato powdery scab disease more serious and asked what kind of good to prevent. The powdery scab of potato is a fungal disease of the subfamily of Flammulina. Powder scab disease is mainly affected potato and roots, and sometimes stems can also be infected. Once infected with the disease, the appearance of its quality potato products will be greatly reduced, lower prices, seriously affecting economic benefits.