目前,禾谷类黑穗病在我国北方旱粮地区发生比较普遍,部分地区危害严重,产量损失较大,发病率达4～5％。谷子白发病发生也很普遍,发病率一般都在5～10％。 禾谷类黑穗病种类较多,传播的方式和侵染的途径也不同,因此,必须根据传病方式,分别采取防治措施: 一、种子表面带菌的小麦光腥黑穗病、网腥黑穗病、糜子黑穗病、高粱坚黑穗病、高粱散黑穗病及莜麦坚黑穗病……,这些种子表面带菌的黑穗病害,可采用保护性杀菌剂。目前,防治效果较好、药源充足的保护 At present, cereal smut is more common in ravines in the northern part of China. In some areas, the damage is serious and the yield loss is large with the incidence of 4% to 5%. White incidence of millet is also very common, the incidence is generally 5 to 10%. There are many types of cereal smut, and the ways of transmission and the ways of infection are different. Therefore, we must take measures to prevent and control them respectively according to the modes of transmission: First, the photosurgeon smuggled on the surface of the seeds, Disease, millet mildew, sorghum stinging, sorghum smut and stinging smut ..., these seed surface with blackhead disease, protective fungicide can be used. At present, the prevention and cure effect is good, the source of adequate protection