Tuber with sclerotia and "growth crack" - Claflin, Larry (My University, 1973)
Tuber with sclerotia and "growth crack" that may or may not be associated with a pathogenic organism. Normally, growth cracks are caused by an injury or improper irrigation practices.
Host/Plant: Potato (Solanum tuberosum subsp. tuberosum)
Pest/Path: Rhizoctonia Canker and Black Scurf (Rhizoctonia solani)
Keywords: Fungal Diseases; Potato Diseases; Rhizoctonia; Color photographs