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Diseases

Potato Scab

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.

Sources8

Varieties of Potato mentioned in the description

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.

Florice

Active

Solanum tuberosum L. · Potato

Station Recherche du Comité Nord (GIE)

FR
9 records

Solanum tuberosum L. · Potato

University of Idaho, Office of Technology Transfer

NL
9 records

Solanum tuberosum L. · Potato

STET HOLLAND

NL
10 records

Solanum tuberosum L. · Potato

Kweek- en Researchbedrijf Agrico BV

NL
10 records

Cabaret

Active

Solanum tuberosum L. · Potato

PLANT BREEDING INTERNATIONAL

8 records

Solanum tuberosum L. · Potato

Saatbau Linz OÖ. Landes-Saatbaugen.reg.Gen.m.b.H.

AT BE FR LU NL
8 records

Hansa

Active

Solanum tuberosum L. · Potato

VEREINIGTE SAATZUCHTEN (DE)

DE DK FR LU NL
8 records

Astra

Active

Solanum tuberosum L. · Potato

DANESPO A/S

DE DK HR NL SK
10 records

Allstar

Active

Solanum tuberosum L. · Potato

Jan Lucas Spijkman, Johanna Maria Spijkman-Vergeer

EE LV NL PT SE
8 records

Stroma

Active

Solanum tuberosum L. · Potato

Dunnet, J.

DK FR IE SE
10 records

Record

Active

Solanum tuberosum L. · Potato

Potato Marketing Board Edinbourgh Maner Place (UK)

FI HR IE SE
6 records

Solanum tuberosum L. · Potato

P.BREED.INT.CAMBRIDGE

ES IE IT NL
9 records

Franca

Active

Solanum tuberosum L. · Potato

NIEDERS KARTOFFELZ

DE DK ES NL
11 records

Exquisa

Active

Solanum tuberosum L. · Potato

SAATZUCHT FIRLBECK GMBH and CO KG

AT DE FR NL
9 records

Alcmaria

Active

Solanum tuberosum L. · Potato

VERENIGDE KWEEKBEDRIJVEN (NL)

FR IE IT NL
7 records

Biogold

Application submitted

Solanum tuberosum L. · Potato

VAN RIJN-KWS B.V.

NL UA
9 records

Triplo

Active

Solanum tuberosum L. · Potato

STET HOLLAND

GR HR NL
10 records

Solanum tuberosum L. · Potato

University of Pannonia,Potato Research Centre (HU)

HR HU SI
8 records

Rioja

Protection expired

Solanum tuberosum L. · Potato

University of Pannonia,Potato Research Centre (HU)

HR HU SI
8 records

Ratte

Active

Solanum tuberosum L. · Potato

QVFOODS FLEET ESTATE OFFICE

ES FR LU
6 records

Osiris

Active

Solanum tuberosum L. · Potato

Winfried Lange, Frank Lange

DE NL UA
9 records

Melissa

Active

Solanum tuberosum L. · Potato

UNICOPA/CLAUSE

DE ES FR
9 records

Flavia

Active

Solanum tuberosum L. · Potato

Saka-Ragis (DE)

CZ DE HR
8 records

Solanum tuberosum L. · Potato

Heinrich Böhm

FR LU NL
9 records

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