小麦腥黑穗病俗称乌麦、臭麦、臭黑疸等,不仅造成减产,还会影响面粉的质量。如含有菌瘿和孢子过多的麦子制成面粉后会有鱼腥气味,且呈乌青颜色。近几年,由于对其防治的忽视,此病的发生面积逐渐扩大,如邯郸市1995年发生面积达30多万亩,有的地块发病率超过50％。 发病症状:得病植株比正常植株稍矮,病穗轻而直立,颖壳略向外张开,露出部分病粒,病粒初期为暗绿色,以后变为灰色,外包薄膜,内充黑粉,具腥臭气味。 Tasty wheat smut commonly known as oats, oysters, smelly black jaundice, not only resulted in reduced production, but also affect the quality of flour. Such as containing bacteria and spores too much wheat made of flour will have fishy smell, and Wuqing color. In recent years, due to the neglect of its prevention and control, the area of ​​the disease gradually expanded, such as Handan City in 1995, an area of ​​over 300,000 mu, and some cases of more than 50% of the plots. Symptoms: diseased plants slightly shorter than normal plants, the disease panicle light and upright, husky slightly outward, exposing part of the particles, the initial dark green particles, later became gray, the outer membrane, filled with black powder, With a stench of smell.