鬼伞是一种生活条件与草菇相似的腐生真菌，是草菇栽培中最常见、危害最大的一种竞争性杂菌。几年来，笔者对袋栽草菇生产中鬼伞发生的主要原因及防治方法进行了观察分析与探讨，经整理供菇农参考。１发生原因①培养料中添加的米糠等辅料过多，氮素含量过甚，诱发鬼伞发生。②? Coprinus is a saprophytic fungus with similar living conditions and mushrooms, which is the most common and most harmful competitive mushroom in mushroom cultivation. Over the past few years, the author of bagged grass mushroom production in the main reasons for the occurrence of Coprinus and prevention and control methods were observed and analyzed, after finishing for mushroom reference. 1 causes ① training materials added rice bran and other excipients too much, too much nitrogen content, induced by Coprinus occurs. ②?