The disease was caused by Cercospora zeae-maydis, and had become one of the most important diseases in warm, humid regions.Maize varieties are very different in resistance.

• 该病主要发生在温暖、湿润的地区，各玉米品种之间的抗病性存在明显差异，其抗病性主要受附加基因控制国内外都有一些抗病品种，但是多数品种感病。