赤霉病是三麦的主要病害之一.我省东南沿海和沿江沿湖地区经常流行,近年来已蔓延到淮河以北.它不仅影响到夏粮增产和麦种质量,而且病麦的毒质还有害人畜健康.当前,在农业大干快上形势下,搞好三麦赤霉病防治的气象服务,对贯彻毛主席关于把国民经济搞上去的伟大指示,完成我省农业生产指标,具有重要的现实意义.赤霉病的发生与流行,受着菌源、气候条件、感病生育期、栽培和防治工作情况等多种因素的影响.特别是菌源和麦子、生育期又与气候条件有着密切关系.因此,各年气候条件的变化是致病轻重的决定因素.本文根 Fusarium head blight is one of the main diseases of Sanmai.The coastal areas of southeastern China and the riverside areas along the Yangtze River are the most common and have spread to the north of the Huaihe River in recent years.It not only affects the yield increase of summer grains and the quality of wheat seeds, But also harmful to human and animal health.At present, under the situation that agriculture is going to be faster and faster, we should do a good job in meteorological services for the prevention and control of three wheat scabs, implement the Chairman Mao’s great instructions on the national economy and accomplish the agricultural production targets in our province, and have Important and practical significance.The occurrence and prevalence of Fusarium head blight are affected by a variety of factors, including bacterial source, climatic conditions, susceptible growth period, cultivation and control work, especially the bacteria and wheat, Conditions are closely related. Therefore, changes in climatic conditions in each year are the determinants of disease severity.