近期在生料栽培竹荪畦面出现一种新的病害,该霉菌主要在高温、高湿的梅雨季节大量发生,传播速度快,为害严重,已造成部分菇农减产甚至绝收.因此,要引起重视,以防为主,一旦发现要及时采取相应治疗措施.以下介绍该霉菌的有关知识和防治方法.1 形态特征该霉菌为絮状杂菌,又称束梗孢霉.初期在竹荪畦面覆土层出现脏白色绒毛状菌丝,有对称发生现象,很快变成粉红色、黑色,整个菌落里深烟灰色,菇农俗称“烟灰菌”,能产生大量黑色孢子粉.2 发生规律 Recently, there has been a new disease in the surface of the bamboo-sun mullet with raw material cultivation. The mulberry mass occurs mainly in the high-temperature and high-humidity rainy seasons and has a high propagation speed and serious detrimental effects. As a result, Attention to prevent the main, once found to take timely treatment accordingly. The following describes the mold of the knowledge and methods of prevention and control .1 Morphological characteristics of the mold for the flocculent bacteria, also known as stem beam fungus .In the beginning of bamboo sun 畦Appeared white soil surface layer of villous hyphae, there is a symmetrical phenomenon, and soon turned pink, black, dark gray throughout the colony, mushrooms commonly known as ”sooty bacteria", can produce a large number of black spore powder .2 regular