丝核菌能引起蔬菜立枯病、黑根病、黑痣病、纹枯病、褐腐病等5个类型病害,各病害症状类型不同,防治方法也不同。但大白菜褐腐病目前还没有有效的防治方法,且该病发病时间晚,发生位置隐蔽,田间不好防治。2017年8月17日,我和北京市农林科学院蔬菜研究中心的张老师应邀到河北涿州去讲大白菜的栽培与病害防治技术。我根据当时在北京遇到的问 Rhizoctonia can cause vegetable damping-off disease, black root disease, mole disease, sheath blight, brown rot and other five types of diseases, the symptoms of different types of diseases, prevention and treatment methods are also different. However, at present there is no effective control method for brown rot of Chinese cabbage, and the incidence of the disease is late, the position is hidden and the field is not well controlled. On August 17, 2017, Zhang and Zhang from the Vegetable Research Center of Beijing Academy of Agriculture and Forestry were invited to go to Danzhou, Hebei to talk about the cultivation and disease prevention and treatment of Chinese cabbage. I asked according to what I met in Beijing at that time