Coltsfoot Tussilago farfara L. Alias ​​winter flower. Asteraceae is a perennial herb medicinal plant. With its buds into medicine, with lungs, cough, phlegm effect. North China, Northwest China, Sichuan, Henan and Hunan are all cultivated. Symptoms Symptoms of diseased seedlings or adult roots and stems appear as water-stained lesions, spreading gradually afterwards, white cotton flocculent mycelia grow on the diseased part and soil surface, and many small white sclerotia are formed on the diseased part and the soil surface, followed by the increase of sclerotia. As large as rapeseed size, the color becomes dark brown, sclerotia and mycelium tangled together on the surface of the plant base. The pathogen, Sclerotium rolfsii Sacc., is known as S. sclerotiorum and belongs to the fungus Subgenie Fungi. The sexual state is Athelia olfsii (Curzi) Tu. & Kimbrough. A. Roche is a basidiomycotina fungus. Hydrolyzed Sponge White Powder Sponge Chengdu Sino Tech company , https://www.cnherbfun.cn
Morphological characteristics, route of transmission and disease conditions, and control methods can be found in mulberry white peony disease.