Root rot of carrot
around 18°C. Lesions 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 [...] The pH for growth, sporulation, and spore germination ranges from 3.4 to 7.1 (optimum 4.2–4.7). This affinity for acidic conditions may explain the con