小麦纹枯病是江苏省小麦上的1种主要病害。20世纪90年代以来呈加重发生趋势。近10年中,偏重至大发生有2年,中等至偏重发生有5年,特别是近年来沿淮及淮北西部地区连年偏重以上发生(白穗率超过1.5%),成为本省重发地区。分析小麦纹枯 Wheat sheath blight is a major disease on wheat in Jiangsu Province. The trend has been aggravating since the 1990s. In the recent 10 years, there have been two years of emphasis to greatest occurrence and five years of mid-emphasis occurrence. Especially in recent years, both the Huaihe River and the western part of Huaibei Province have been more or less seriously affected (the rate of white spike exceeds 1.5%), and become the province’s recurrence area. Analysis of wheat withered