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Diseases

Rhizoctonia Canker and Black Scurf of Potato

Solanum tuberosum L.

A fungal disease of potatoes caused by the soil-borne pathogen Rhizoctonia solani, affecting all plant organs at various developmental stages. It manifests as the formation of black sclerotia on tubers, cankers on sprouts and stems, as well as leaf curling and tuber malformation.

In the reference 182 varieties crop Potato, where this is mentioned in the description.

The disease is caused by the basidiomycete Rhizoctonia solani (anamorphic stage) or Thanatephorus cucumeris (telemorphic stage). The pathogen infects sprouts, causing them to die before or after emergence, which leads to poor stand establishment. On tubers, the disease manifests as hard black sclerotia, netted necrosis, pitting, malformation, and cracking.

Brown cankers form on roots, stolons, and stems, and under high humidity, a dirty-white mycelial mat may appear at the base of the stems. Vegetative symptoms include upward cupping of upper leaves and the formation of aerial tubers. Specific resistance genes to the pathogen have not been identified; therefore, varietal resistance is evaluated as a quantitative trait using scoring scales in artificially inoculated fields.

General information about the subject — on the page Rhizoctonia.

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.

VB Liepa

Terminated

Solanum tuberosum L. · Potato

Lietuvos agrarinių ir miškų mokslų centro Vokės filialas

LT
2 records

Universal

Active

Solanum tuberosum L. · Potato

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

SK
2 records

Torva

Terminated

Solanum tuberosum L. · Potato

Landbrugets Kartoffelfond

DK
2 records

Sixtus

Active

Solanum tuberosum L. · Potato

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

AT
3 records

Reza

Active

Solanum tuberosum L. · Potato

J. Boer

NL
3 records

Nevskij

Active

Solanum tuberosum L. · Potato

Šiaurės-Vakarų ŽŪMTI

LT
3 records

Mogli

Active

Solanum tuberosum L. · Potato

Adolf Kellermann^^^Sanja Randjelovic

DE
3 records

Milenia

Active

Solanum tuberosum L. · Potato

Europlant America LLC

DE
3 records

Meichip

Active

Solanum tuberosum L. · Potato

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

AT
3 records

Melia

Active

Solanum tuberosum L. · Potato

Dr. Sieber und Forster GbR (ForKa)

DE
3 records

Lolita

Terminated

Solanum tuberosum L. · Potato

JOHANNA BERGER ^^^Stephan Berger

DE
3 records

Maret

Active

Solanum tuberosum L. · Potato

Aide Tsahkna 90%, Alice Anderfeld 5%, Mati Koppel 5%

EE
3 records

Marvis

Active

Solanum tuberosum L. · Potato

HERMEZIU RADU

RO
3 records

Longinus

Active

Solanum tuberosum L. · Potato

NIEDEROESTERREICHISCHE SAATBAUGENOSSENSCHAFT

AT
3 records

Lisbeth

Active

Solanum tuberosum L. · Potato

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

AT
3 records

Karrera

Active

Solanum tuberosum L. · Potato

HZPC Holland B.V.

UA
2 records

Geraldine

Active

Solanum tuberosum L. · Potato

Europlant Innovation GmbH & Co. KG

DE
3 records

Coco

Active

Solanum tuberosum L. · Potato

Saka Pflanzenzucht GmbH Co KG

DE
3 records

Castrum

Active

Solanum tuberosum L. · Potato

HERMEZIU RADU

RO
3 records

Benjamin

Active

Solanum tuberosum L. · Potato

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

AT
3 records

Beethoven

Active

Solanum tuberosum L. · Potato

Saka Pflanzenzucht GmbH Co KG

DE
3 records

Baltic Blue

Active

Solanum tuberosum L. · Potato

Jan Darwinkel

DE
3 records

Apolena

Terminated

Solanum tuberosum L. · Potato

Vysočina Vyklantice, a.s. (CZ)/Výzkumný ústav bramborářský Havlíčkův Brod, s.r.o. (CZ)

CZ
3 records

Charlemont

Terminated

Solanum tuberosum L. · Potato

Agri-food and Biosciences Institute (AFBI Belfast)

2 records