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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.

Courlan

Protection expired

Solanum tuberosum L. · Potato

Robert W. Hoopes

PL
5 records

Costella

Terminated

Solanum tuberosum L. · Potato

J P G KONST

NL
4 records

Solanum tuberosum L. · Potato

Piet H.Smeenge

NL
6 records

Charlene

Active

Solanum tuberosum L. · Potato

Bretagne-Plants S.C.I.C.A.

FR
4 records

Solanum tuberosum L. · Potato

CALEDONIA POTATO HOLDINGS LTD

IE
5 records

Chipie

Terminated

Solanum tuberosum L. · Potato

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

FR
4 records

Solanum tuberosum L. · Potato

Bretagne-Plants S.C.I.C.A.

FR
4 records

Capucine

Active

Solanum tuberosum L. · Potato

Germicopa SAS, FR

FR
6 records

Solanum tuberosum L. · Potato

CALEDONIA POTATO HOLDINGS LTD

IE
5 records

Solanum tuberosum L. · Potato

Old Fargie Potato Breeding Company

IE
5 records

Solanum tuberosum L. · Potato

SARPO KFT

IE
3 records

Betty

Active

Solanum tuberosum L. · Potato

Germicopa Breeding S.A.S

NL
8 records

Solanum tuberosum L. · Potato

STET HOLLAND

NL
6 records

Bavatop

Active

Solanum tuberosum L. · Potato

Bavaria Saat GbR

DE
5 records

Bmc

Active

Solanum tuberosum L. · Potato

Mencke Landbouw B.V.

NL
5 records

Solanum tuberosum L. · Potato

SASA

FI
3 records

Bavafit

Active

Solanum tuberosum L. · Potato

Bavaria Saat GbR

DE
4 records

Aromata

Active

Solanum tuberosum L. · Potato

STET HOLLAND

NL
6 records

Bard

Active

Solanum tuberosum L. · Potato

Instytut Hodowli i Aklimatyzacji Roslin Panstwowy Instytut Badawczy

PL
6 records

Argana

Active

Solanum tuberosum L. · Potato

Danespo A/S

DK
4 records

Solanum tuberosum L. · Potato

Landbrugets Kartoffelfond

DK
5 records

Avarna

Active

Solanum tuberosum L. · Potato

Averis Seeds B.V.

NL
5 records

Solanum tuberosum L. · Potato

Germicopa SAS, FR

FR
5 records

Solanum tuberosum L. · Potato

Teagasc

IE
6 records

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