小麦全蚀病是小麦的重要病害之一.目前世界上许多产麦国家都有发生.我国早在五十年代曾在河北等省发现,近几年在北部冬麦区、西北春麦区和长江下游麦区相继发生,并有扩大加重的趋势.小麦感病后,分蘗减少,成穗率低,粒重下降.发病麦田一 Wheat eclipse is one of the most important diseases of wheat.At present, many wheat-producing countries in the world have occurred.Our country has found in Hebei Province in the early 1950s, in recent years in the northern winter wheat, northwest spring wheat and the Yangtze River Lower reaches of the wheat area have occurred, and have aggravated the trend of aggravating.While after the disease, the tillering reduced, the ear diameter is low, the grain weight decreases.