蘑菇采收的中、后期,常可见到细土粒之间出现一朵朵似棉絮的白色菌丝,后变成桔红色,这就是棉絮状杂菌。由于它是一种竞争性杂菌,所以一旦污染后,出菇便稀少,甚至不出菇。我们曾用多菌灵和甲基托布津进行防治试验,结果表明,甲基托布津的防治效果比多菌灵好,前者高达96％,而后者仅73％。只要使用得当,甲基托布津对菌丝和子实体无不良影响,且病区经防治后,产量比用多 Mushrooms harvested in the late, often seen among the fine soil appears blossoming white cotton mycelium, after turning into orange, which is cotton-like bacteria. Because it is a competitive bacteria, so once contaminated, fruiting is sparse, or even fruiting. We have used carbendazim and thiophanate-methyl prevention and control tests, the results show that the control effect of thiophanate-methyl than carbendazim, the former up to 96%, while the latter only 73%. As long as used properly, thiophanate-methyl on the mycelium and fruiting bodies without adverse effects, and the ward after the prevention and treatment, the yield more than used