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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.

PIROL'

Active

Solanum tuberosum L. · Potato

Yosef Fohel`

BG DE HR LT LU PL +1
19 records

Baby Lou

Active

Solanum tuberosum L. · Potato

SOLANA GMBH & CO KG

DE FR
11 records

7 four 7

Active

Solanum tuberosum L. · Potato

Jacob Eising

NL UA
16 records

Velox

Active

Solanum tuberosum L. · Potato

SAKA-RAGIS PFLANZENZUCHT GBR

AT BG CZ DE EE FI +6
28 records

Rosara

Active

Solanum tuberosum L. · Potato

VON KAMEKE KARTZ

CZ DE ES HR HU LT +5
24 records

Sagitta

Active

Solanum tuberosum L. · Potato

ROCUS PIETER GRAVELAND

CZ IT NL PL UA
27 records

Verdi

Active

Solanum tuberosum L. · Potato

UNIPLANTA SAATZUCHT KG

CZ DE PL UA
24 records

Gala

Active

Solanum tuberosum L. · Potato

Wolfgang Walter

BG DE LT LU UA
22 records

Everest

Active

Solanum tuberosum L. · Potato

Van Rijn Group

CZ GR HR NL SK
19 records

Romina

Active

Solanum tuberosum L. · Potato

NIEDERSTERREICHISCHE SAATBAUGENOSSENSCHT

AT DK EE ES FR HR +4
18 records

Kennebec

Active

Solanum tuberosum L. · Potato

USDA MAINE

ES FR GR HR IT LU +3
15 records

Satina

Active

Solanum tuberosum L. · Potato

SOLANA DEUTSCHLAND GmbH

CZ DE HR HU LT PL +2
20 records

Vivaldi

Active

Solanum tuberosum L. · Potato

van der Zee, G. / van der Zee, Pieter

CZ FR HR IT LT NL +1
21 records

Miranda

Active

Solanum tuberosum L. · Potato

SOLANA DEUTSCHLAND GmbH

CZ DK IT SI UA
20 records

Gioconda

Active

Solanum tuberosum L. · Potato

KWEEEKBEDRYJF ROPTA-ZPC

ES IT NL
18 records

Accent

Active

Solanum tuberosum L. · Potato

S.HARTMANS/C.MEIJER BV

AT CZ DE ES FR NL +4
18 records

Princess

Active

Solanum tuberosum L. · Potato

Solana Agrarproducte GmbH & Co

CZ DE EE HR LT NL +3
16 records

Ludmilla

Active

Solanum tuberosum L. · Potato

SAKA PFLANZENZUCHT GMBH AND CO KG

DE UA
22 records

Granola

Active

Solanum tuberosum L. · Potato

SAKA-RAGIS PFLANZENZUCHT GBR

CZ DE ES HR IE NL +1
16 records

Romano

Active

Solanum tuberosum L. · Potato

Veredelingsbedrijf B.V.

HR HU IE NL SI UA
15 records

Caruso

Active

Solanum tuberosum L. · Potato

Saka Pflanzenzucht, D

DE HR UA
16 records

Romanze

Active

Solanum tuberosum L. · Potato

Wolfgang Walter

DE ES HR LT UA
14 records

Soraya

Active

Solanum tuberosum L. · Potato

WOLFGANG Walter, DE

DE HR UA
16 records

Lilly

Active

Solanum tuberosum L. · Potato

SOLANA GMBH & CO KG

CZ DE UA
14 records