Pastinaca sativa
parsnip
2 Related Pests
Streptomyces scabiei
bacterium
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
Sudan
2025-11-05
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.
Main: potato; Other: groundnut, beet, carrot, parsnip, radish
No
CABI CPC, STRESC-1, STRESC-2, STRESC-3
Seed is not a known pathway.
CABI CPC, STRESC-1, STRESC-2, STRESC-3
Crop Protection Compendium. Wallingford, UK: CAB International. www.cabi.org/cpc.
Goyer, C. and Beaulieu, C. (1997). Host range of Streptomycete strains causing common scab. Plant Disease 81: 901-904
Lambert & Loria (1989) — Streptomyces scabies sp. nov., nom. rev. Int. J. Syst. Bacteriol. 39: 387-392
Loria, R., Bukhalid, R.A., Fry, B.A. and King, R.R. (1997). Plant pathogenicity in the genus Streptomyces. Plant Disease 81(8): 836-846.
Streptomyces acidiscabies
bacterium
-
Asia: China; South America: Uruguay.
Not known to be in the US
Sudan
2025-11-05
Streptomyces acidiscabies is soil-borne and causes common scab on potatoes and other root crops, producing raised or pitted lesions. It spreads through infected soil, plant debris, and tubers. It tolerates more acidic soils. Seed is not a known pathway.
Main: potato; Other: carrot, radish, beet, turnip, parsnip
No
CABI CPC, STREAC-1, STREAC-2, STREAC-3
Seed is not a known pathway.
CABI CPC, STREAC-1, STREAC-2, STREAC-3
Crop Protection Compendium. Wallingford, UK: CAB International. www.cabi.org/cpc.
Goyer, C. and Beaulieu, C. (1997). Host range of Streptomycete strains causing common scab. Plant Disease 81: 901-904
Lambert, D. H., & Loria, R. (1989). Streptomyces acidiscabies sp. nov. International Journal of Systematic and Evolutionary Microbiology, 39(4), 393-396.
Lapaz MI, Verdier E, Pianzzola MJ, 2012. First report regarding potato scab caused by Streptomyces acidiscabies in Uruguay. Plant Disease, 96(7):1064.
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