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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.

Shannon

Active

Solanum tuberosum L. · Potato

Teagasc Oak Park Research Centre

IE
8 records

Senna

Active

Solanum tuberosum L. · Potato

Landbrugets Kartoffelfond, Foraedlst., DK-7184 Vandel

DK
7 records

Safari

Active

Solanum tuberosum L. · Potato

STET HOLLAND RESEARCH B.V.

NL
8 records

Sally

Active

Solanum tuberosum L. · Potato

IRISH SEED POTATOES LTD

NL
6 records

Rainbow

Active

Solanum tuberosum L. · Potato

Station de Recherche du Comité Nord G.I.E.

FR
9 records

Obama

Active

Solanum tuberosum L. · Potato

SELECTIEBEDRIJF KOOI

NL
8 records

Meister

Active

Solanum tuberosum L. · Potato

Stephan Berger

DE
7 records

Madrid

Active

Solanum tuberosum L. · Potato

The Potato Company

NL
7 records

Marvel

Active

Solanum tuberosum L. · Potato

Smeenge, P.H.

NL
7 records

Solanum tuberosum L. · Potato

SCOTTISH CROP RESEARCH INSTITUTE

NL
7 records

Jester

Active

Solanum tuberosum L. · Potato

The James Hutton Institute

NL
7 records

Jule

Active

Solanum tuberosum L. · Potato

SOLANA SEEDS UNITED KINGDOM LTD. UNIT 4

DE
8 records

Isabelia

Active

Solanum tuberosum L. · Potato

Heinrich Böhm

NL
8 records

Harry

Active

Solanum tuberosum L. · Potato

IRISH SEED POTATOES LTD

IE
8 records

Gemson

Active

Solanum tuberosum L. · Potato

The James Hutton Institute

NL
7 records

Gerona

Active

Solanum tuberosum L. · Potato

Wilhelm Weuthen GmbH & Co. KG^^^Schaap Holland B.V.

NL
6 records

Solanum tuberosum L. · Potato

IPR B.V.

NL
7 records

Solanum tuberosum L. · Potato

University of Idaho, Office of Technology Transfer

NL
6 records

Cimega

Active

Solanum tuberosum L. · Potato

LKF-Vandel

DK
6 records

Chenoa

Active

Solanum tuberosum L. · Potato

Interseed Potatoes GmbH

DE
7 records

Cheyenne

Active

Solanum tuberosum L. · Potato

SICA GROCEP

FR
6 records

Celtiane

Active

Solanum tuberosum L. · Potato

Pierre Billant

FR
7 records

Buffalo

Active

Solanum tuberosum L. · Potato

Teagasc Crops Research Centre

IE
7 records

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