Root rot of carrot
conditions, an olive-green mycelium can develop on the surface. Initially, the disease forms circular to irregular spots on the leaves that vary in colour from [...] at the generic level. Årsvoll was the first to identify and describe the fungus in Norway, in 1965. An infection can occur through the soil and the air [...] to black lesions of various shapes. The lesions can merge and eventually cover the entire surface of the carrot. The affected areas are firm, shallow, and