玉米是我省主要作物之一,年种植面积约四百多万亩。近两年来,我省不少地区发现玉米丝黑穗病迅速漫延扩展,发病率在5—8％,个别地区高达(60％),严重影响着玉米的收成。一、玉米丝黑穗病多在玉米抽穗期发现。玉米、高粱都可受此病侵害。玉米多在雌穗发病,罹病雌穗全部变成黑粉,形成不 Corn is one of the main crops in our province, with an annual planting area of ​​about 4 million mu. In the past two years, maize smut has been found in many areas of our province to spread rapidly and rapidly with a prevalence of 5-8% and as high as 60% in some areas, seriously affecting maize harvest. First, corn smut and more found in the corn heading stage. Corn, sorghum can be affected by the disease. Corn is more in the ear disease, sick ear all turned black, the formation is not