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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.

Simphony

Active

Solanum tuberosum L. · Potato

Sloots Aardappelkweekbedrijf B.V.

NL
7 records

Solanum tuberosum L. · Potato

Justus Böhm

DE
6 records

Solanum tuberosum L. · Potato

CYGNET POTATO BREEDERS

BE
6 records

SF Vario

Active

Solanum tuberosum L. · Potato

Stephan Berger

DE
5 records

Scapa

Active

Solanum tuberosum L. · Potato

JAMES HUTTON LTD

NL
6 records

Signum

Active

Solanum tuberosum L. · Potato

J.J. Schilt

NL
7 records

Saprodi

Active

Solanum tuberosum L. · Potato

Sloots Aardappelkweekbedrijf B.V.

NL
6 records

Roslin

Active

Solanum tuberosum L. · Potato

Jacob Heidemans

NL
7 records

Solanum tuberosum L. · Potato

Karsten Ellenberg

DE
4 records

Solanum tuberosum L. · Potato

Austinus Jansen

NL
8 records

Perdiz

Active

Solanum tuberosum L. · Potato

IPR BV

NL
8 records

Octa

Active

Solanum tuberosum L. · Potato

Aardappelkweek-en Selectiebedrijf Ijsselmeerpolders B.V.

NL
8 records

Nazca

Active

Solanum tuberosum L. · Potato

Station Recherche du Comité Nord (GIE)

FR
6 records

Neptun

Active

Solanum tuberosum L. · Potato

RUP «NAUCHNO - PRAKTICHESKIJ CZENTR NACZIONALNOJ AKADEMII NAUK BELARUSI PO KARTOFELEVODSTVU I PLODOOVOSHHEVODSTVU»

PL
8 records

Montis

Active

Solanum tuberosum L. · Potato

Interseed Potatoes GmbH

DE
6 records

Martina

Active

Solanum tuberosum L. · Potato

Niederösterreichische Saatbaugenossenschaft reg.Gen.m.b.H.

AT
6 records

Mariska

Active

Solanum tuberosum L. · Potato

R.J. Mansholt's Veredelingsbedrijf

NL
6 records

Masai

Active

Solanum tuberosum L. · Potato

BERNARD KRIJGER

NL
8 records

Mascha

Active

Solanum tuberosum L. · Potato

NORIKA Nordring- Kartoffelzucht- und Ver

DE
6 records

Solanum tuberosum L. · Potato

CYGNET POTATO BREEDERS

NL
6 records

Lorimer

Active

Solanum tuberosum L. · Potato

M HIGGINS LTD

NL
4 records

Lisana

Active

Solanum tuberosum L. · Potato

DR. LUDWIG SIMON

DE
9 records

Maldive

Active

Solanum tuberosum L. · Potato

SARL L.S.A.

FR
6 records

Solanum tuberosum L. · Potato

Wageningen UR Plant Breeding

NL
8 records

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