Root rot of carrot
the leaves that vary in colour from grey to almost black. The spots appear to be sharply defined, but under a magnifying glass it appears that the infected [...] Europe. Damage symptoms Rhexocercosporidium carotae is a slow-growing fungus that can infect both roots and foliage. The infection starts with small black [...] are dark brown to black, moist, mostly circular spots 0.5 -1.2 cm diameter that extend only to 2 mm in the root, up to 20-25 per carrot root. They occur