Streptomyces scabiei (potato scab )
Streptomyces scabiei
potato scab
Actinomyces scabies, Oospora scabies, Streptomyces scabies
Worldwide. This disease should be considered widespread across all major potato-growing regions.
CT, FL, IN, ME, MI, MN, NE, NY, ND, WV
2025-11-05
bacterium
Sudan
Main: potato; Other: groundnut, beet, carrot, parsnip, radish
STRESC
Streptomyces scabiei is soil-borne. It spreads through contaminated soil, infected seed tubers, or equipment. It thrives in alkaline, dry soils. Seed is not a known pathway.