大豆菌核病属于子囊菌亚门。最初茎秆上生有褐色病斑,以后病斑上长有白色棉絮状菌丝体及白色颗粒,后变黑色颗粒(菌核)。纵剖病株茎秆,可见黑色圆柱形老鼠屎一样的菌核,病株常枯死呈白色。该种病害可以通过轮作或喷洒农药等方式防治。 Sarcina sclerotinia belongs to Ascomycetes. Initially stained brown spots on the stalk, after the lesion has long white cotton-like mycelium and white particles, after the black particles (sclerotium). Longitudinal section diseased stalk, showing the black cylindrical mouse feces the same sclerotia, diseased plants often withered white. The disease can be prevented by rotation or spraying pesticides.