黑木耳是著名的食药兼用菌,历来采用段木栽培。为节约耳木资源的耗用,近年来研制成功了木耳袋料栽培法,并取得了较好的经济效益和社会效益。但由于木耳菌丝较细,生长慢,抗逆性差,往往造成栽培中杂菌污染,有时甚至“全军复没”。如何能有效地防止或减少杂菌污染,是菇农十分关注和迫切需要解决的课题。侵染木耳的杂菌,包括竞争性杂菌(争夺营养、占领空间、抑制菌丝生长和出耳)和致病菌(主要侵染子实体)。目前看,影响木耳栽培的主要是竞争性杂菌,如木霉、青霉、连孢 Black fungus is a well-known medicinal and fungi, has traditionally used segment cultivation. In order to save ear wood resource consumption, in recent years successfully developed fungus bag cultivation method, and achieved good economic and social benefits. However, due to the fungus mycelium thin, slow growth, poor resistance, often resulting in cultivation of bacteria contamination, and sometimes even “regain ”. How to effectively prevent or reduce the contamination of miscellaneous bacteria is a topic that Mushroom farmers are very concerned about and urgently need to solve. Agaric infections fungi, including competing bacteria (competing for nutrition, occupying space, inhibiting mycelium growth and ear) and pathogens (the main infectious entity). At present, the main fungus cultivation is competition fungi, such as Trichoderma, Penicillium, conidia