用药物和生物方法防治黑木耳杂菌弊病甚多。我们在总结群众经验的基础上,采取火燎处理段木,取得良好的效果。一、显微镜检查过去栽培者大都认为杂菌孢子是在黑木耳栽培过程中落入段木的,实际上大量的孢子在树木砍伐前已附着或潜入树的表面皮层,它们伴随着树木的生长,年复一年的累积。其一,它们大都是腐生性真菌,不能在活树上萌发定殖;其二,这些孢 The use of drugs and biological methods to prevent black fungus miscellaneous shortcomings. On the basis of summing up the experience of the masses, we took the long-distance treatment of section wood and achieved good results. First, the microscopic examination Most of the past growers think that the spores of the bacteria fall into the wood during the cultivation of black fungus, in fact, a large number of spores before the trees have been cut or dived into the surface cortex, which is accompanied by the growth of trees, Year after year accumulation. First, most of them are saprophytic fungi that can not germinate and colonize live trees; secondly, these spores