Root rot of carrot
symptoms, which are collectively known as black spot diseases. When carrots are stored during winter, diseases on the carrot roots can continue to develop during [...] 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 [...] will die off. The fungus appears to prefer older tissue. In the field, the disease is difficult to distinguish from both Cercospora and Alternaria dauci .