玉米粗缩病的发生与综防濮阳市农业技术推广站张光吉吉王留梅一、玉米粗缩病症状玉米粗缩病多在玉米六、七叶时出现，病株节间明显缩短、矮化，叶色浓绿，叶片宽、短、硬、脆、密集和丛生，叶背、叶鞘和苞叶的叶脉上产生蜡白色突起条纹，后变为黑褐色。病株一般不能抽穗或... Maize rough occurrence and prevention Puyang City Agricultural Technology Extension Station Zhangguang Ji Ji Wang Lumei First, the symptoms of corn crude disease Maize rough and more corn appeared in the six, seven leaves, internode significantly shortened, dwarfed, Dark green leaves, leaves wide, short, hard, brittle, dense and tufted, leaf dorsal, leaf sheath and bracts of the veins of the wax white protruding stripes, after dark brown. Diseases generally can not be heading or ...