小麦赤霉病是一种毁灭性病害。其病菌主要是禾谷镰刀菌。它的发生与发展与当地菌源积累数量、气象因素、农业措施相关。它主要发生在气候湿润多雨的长江中下游地区,在北方大面积发生是历史上罕见的。有的地方多因不协调、工作失误,造成损失。小麦得病后,一般减产20％左右,严重地块病穗会超过90％,基本绝收。它不仅导致大面积减产,影响种子质量,降低出苗率,而且人畜食病麦后还易中毒。麦种带 Wheat scab is a devastating disease. The main pathogen is Fusarium graminearum. Its occurrence and development are related to the accumulation of local bacteria, meteorological factors and agricultural measures. It occurs mainly in the humid and rainy regions of the middle and lower reaches of the Yangtze River, where widespread occurrence in the north is rare in history. In some places due to uncoordinated, mistakes, resulting in losses. After the wheat is sick, the general yield reduction of about 20%, severe land disease will be more than 90% of the ear, the basic income. It not only led to large-scale production cuts, affecting seed quality, reduce the emergence rate, but also easy to poison people and livestock after eating wheat. Wheat belt