Diseases
Solanum tuberosum L.
A group of potato diseases caused by various pathogens, primarily affecting the tubers. It includes common, powdery, silver, skin spot, and black scurf forms, which differ in their causal agents and symptoms.
In the reference 1 000 varieties crop Potato, where this is mentioned in the description.
Potato scab encompasses five main forms of the disease: common scab, caused by the actinomycetes Streptomyces scabies; powdery scab (Spongospora subterranea); silver scurf (Helminthosporium solani); skin spot (Polyscytalum pustulans); and black scurf, or Rhizoctonia disease (Rhizoctonia solani). Lesions appear on the tubers as ulcers, pustules, spots with a metallic sheen, or growths on the roots.
In agronomic practice, cultivar resistance is assessed using a scoring scale, as specific immunity genes for scab pathogens have not been identified. Breeding efforts are focused on selecting hybrid material with high field tolerance and complex resistance to diseases under production conditions.
General information about the subject — on the page Scab.
Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.
Solanum tuberosum L. · Potato
SCICA BRETAGNE- PLANTS
Solanum tuberosum L. · Potato
Stet Holland BV (NL)
Solanum tuberosum L. · Potato
RUP «NAUCHNO - PRAKTICHESKIJ CZENTR NACZIONALNOJ AKADEMII NAUK BELARUSI PO KARTOFELEVODSTVU I PLODOOVOSHHEVODSTVU»
Solanum tuberosum L. · Potato
STET HOLLAND
Solanum tuberosum L. · Potato
Vandel Potatoes I/S c/o Danespo A/S
Solanum tuberosum L. · Potato
Teagasc
Solanum tuberosum L. · Potato
Aardappelkweek- en Selectiebedrijf Ijsselmeerpolders B.V.
Solanum tuberosum L. · Potato
Station de Recherche du ComitÚ Nord
Solanum tuberosum L. · Potato
Grocep S.I.C.A.
Solanum tuberosum L. · Potato
Niederösterreichische Saatbaugenossenschaft reg.Gen.m.b.H.
Solanum tuberosum L. · Potato
Heinrich Böhm
Solanum tuberosum L. · Potato
Lars Naested
Solanum tuberosum L. · Potato
Saatzucht Hergen Berding
Solanum tuberosum L. · Potato
Johannes Martinus Kannegieter (J.M. Kannegieter)
Solanum tuberosum L. · Potato
Grocep S.I.C.A.
Solanum tuberosum L. · Potato
Bretagne-plants (FR)
Solanum tuberosum L. · Potato
Heinrich Böhm
Solanum tuberosum L. · Potato
Bretagne-Plants S.C.I.C.A.
Solanum tuberosum L. · Potato
BOERHAVE VOF
Solanum tuberosum L. · Potato
CECAB (FR)/Bretagne-plants (FR)
Solanum tuberosum L. · Potato
Wolfgang Walter
Solanum tuberosum L. · Potato
Station de Recherche du Comité Nord G.I.E.
Solanum tuberosum L. · Potato
Jack Dunnett
Solanum tuberosum L. · Potato
JAMES HUTTON LTD