病毒病是一种复杂的病害,小麦感染了这种病,在返青、拔节以后,植株矮缩不长。染病麦株不拔节或拔节而不抽穗,或有穗而不实,或有粒而秕瘦,造成提早枯死。我国小麦病毒病的种类较多,主要有黄矮病、红矮病、丛矮病、糜疯病和黑条矮缩病五种。现已基本查明,这些病害是由多种传毒昆虫传播的几种病毒所致。在我国小麦主要产区都有不同程度的发生和为害。近年来,我国小麦病毒病有继续蔓延的趋势。小麦黄矮病、红矮病和丛矮病在北方麦区普 Virus disease is a complex disease, wheat infected with the disease, after turning green, jointing, plant dwarf is not long. Infected wheat plants are not jointed or jointed but not heading, or spike and not real, or grain and lean, resulting in early dead. There are many kinds of wheat virus diseases in our country, mainly five kinds of yellow dwarf disease, red dwarf disease, clumpy dwarf disease, minocytosis and black stripe dwarfism. It has been basically ascertained that these diseases are caused by several viruses transmitted by many kinds of poisonous insects. In our country’s major wheat producing areas have varying degrees of occurrence and damage. In recent years, the trend of wheat virus disease in our country continues to spread. Wheat yellow dwarf, red dwarf and cercis dwarf disease in the northern wheat area Pu