麦类纹枯病是七十年代发现的麦子新病害。目前该病在上海郊区一些地势较低、长势较好的田块已开始造成为害,其中尤以小麦为重。我们于80～82年进行了田间调查,并对该病病原菌的生物学特性进行了初步研究。 (一)为害症状麦类纹枯病为害麦子的叶鞘和叶片,主要是第三叶鞘或其以下各叶鞘和叶片,少数在第二叶叶鞘 Wheat sheath blight is a new disease of wheat discovered in the seventies. At present, some low-lying and better-performing plots in the suburbs of Shanghai have begun to cause harm, especially wheat. We conducted field surveys in 1980-82 and conducted a preliminary study on the biological characteristics of the pathogenic bacteria. (A) the symptoms of wheat sheath blight Wheat leaf sheaths and leaves, mainly the third leaf sheath or below the leaf sheaths and leaves, a few in the second leaf sheath