大麦条纹病又称条斑病,是大麦栽培中主要病害之一。据调查,近几年来随着啤酒大麦栽培面积的扩大,在兴安盟、土默川、巴盟等地区有逐渐扩大蔓延的趋势。现将该病的病症、病原菌及防治方法简单介绍如下。 1、病症大麦条纹病是一种全株受害的系统性病害,病株地上部均能表现症状,以叶片受害最重,叶鞘、茎秆及穗部也可发生。叶片发病,最初在第一、二片幼叶上生有淡黄色斑点或短小条纹,随着叶片的长大,病斑逐渐扩展,至分蘖期,从叶片基部直到尖 Barley stripe disease, also known as leaf spot disease, is one of the major diseases in barley cultivation. According to the survey, with the expansion of beer barley cultivation area in recent years, there is a trend of gradually expanding and spreading in areas such as Xing’an League, Tumochuan and Bameng. Now the disease symptoms, pathogens and prevention methods are briefly described below. 1, the disease barley stripe disease is a systemic disease affected by the whole plant, the diseased plants can show symptoms of the upper part to the leaves of the most affected, leaf sheath, stalks and spikes can occur. The incidence of leaves, initially in the first and second leaves on the birth of yellowish spots or short stripes, with the leaves grow, lesion gradually expanded to the tillering period, from the base of the leaves until the tip