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玉米粗缩病是由玉米粗缩病毒引起的病毒病，一旦发生，无法治疗，产量损失严重．是一种毁灭性病害。植株感病茎节缩短变粗，严重矮化，叶片浓绿对生，宽短硬直，状如君子兰；顶叶簇生，心叶卷曲变小；叶背及叶鞘的叶脉上有粗细不一的蜡白色突起条麻。苗期感病，不能抽穗结实，
Corn rough disease is caused by corn rough virus virus disease, in the event, can not be treated, the yield loss is serious. It is a devastating disease. Stems of plant diseases are shortened and thicker, with severe dwarfing. The leaves are dark green and dark, straight and stiff, with a shape like Clivia. The parietal lobes are smaller and the curl of the heart leaves is smaller. White protruding nails. Seedling disease, can not be heading strong,