小麦矮腥黑穗病是目前世界上许多国家普遍发生的病害,危害很大,发病后一般减产30—40%,严重的可达70%以上。它属真菌病害,寄主范围很广,除为害小麦外,还为害大麦、黑麦等多种禾本科植物。主要以种子和土壤进行传染,厚垣孢子在土壤中能存活6—7年,一旦发生很难防治。当前在我省还没有发现这种病害,必须提高警惕,防止通过引种和商品粮把菌引进来。 Wheat dwarfed smut is a common disease in many countries in the world, and it is very harmful. After the onset of the disease, the yield is reduced by 30-40% and the severity is up to 70%. It is a fungal disease, host a wide range, in addition to wheat, but also harm barley, rye and other grasses. Mainly in the seeds and soil infection, chlamydospores in the soil can survive 6-7 years, in the event of difficult to control. At present, this disease has not been found in our province and vigilance must be heightened to prevent the introduction of bacteria through introduction and commodity grain.