Stems with yellowish coloration a symptom of Rhizoc - Claflin, Larry (My University, 1972)
One of the first symptoms of "rhizoc" is a stem or stems that have a yellowish coloration when compared to healthy plants.
Host/Plant: Potato (Solanum tuberosum subsp. tuberosum)
Pest/Path: Rhizoctonia Canker and Black Scurf (Rhizoctonia solani)
Keywords: Fungal Diseases; Potato Diseases; Rhizoctonia; Color photographs