“…Spore color on yeast-malt extract agar (27) ranged from grey (e.g., strains 11, 23, 31, P2, and B30) to white (e.g., strains 2, 12, 21, and PBS1). These results clearly indicate that potato scab-causing strains in Israel did not necessarily match the traditional description of S. scabies, namely, smooth grey spores borne in spiral chains (1,9,15,17,32).…”