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Diseases

Blackleg of potato

Solanum tuberosum L.

A bacterial disease of potatoes caused by pectolytic bacteria that affects stems and tubers, leading to their decay.

In the reference 179 varieties crop Potato, where this is mentioned in the description.

The disease is caused by bacteria of the Enterobacteriaceae family, including the species Pectobacterium atrosepticum, Pectobacterium carotovorum subsp. carotovorum, and the genus Dickeya. The pathogens are classified by species and temperature preferences: members of Dickeya are typically aggressive in warm conditions, whereas P. atrosepticum is more common in cooler climates.

Symptoms on the aerial parts include yellowing and upward rolling of leaves, thinning and blackening of the stem base, which easily separates from the roots. In tubers, the disease manifests as soft rot starting from the stolon end, where the flesh acquires a slimy consistency and a foul odor.

Resistance to blackleg is a polygenic trait with an additive inheritance pattern. There are no varieties with absolute resistance, therefore breeding work is based on the use of wild species, such as Solanum chacoense or S. berthaultii, and the assessment of complex field resistance.

General information about the subject — on the page Blackleg.

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.

Red pontiac

Active

Solanum tuberosum L. · Potato

WESTON JW (US)

ES FR LU NL
9 records

Navan

Active

Solanum tuberosum L. · Potato

PBI Cambridge (GB)

CZ HU IE SI
12 records

Toscana

Active

Solanum tuberosum L. · Potato

SAKA PFLANZENZUCHT GMBH AND CO KG

DE HR UA
12 records

Orla

Active

Solanum tuberosum L. · Potato

TEAGASC OAK PARK RESEARCH CENTRE,CARLOW, CO-CARLOW

IE UA
12 records

Merlot

Active

Solanum tuberosum L. · Potato

Wolfgang Walter, Norika Nordring - Kartoffelzucht - und Vermehrungs - GmbH Gross Lusewitz

LV UA
11 records

Kestrel

Active

Solanum tuberosum L. · Potato

Jack Dunnett

IE NL
10 records

Captiva

Active

Solanum tuberosum L. · Potato

Heinrich BOHM, DE

NL UA
12 records

Avalanche

Active

Solanum tuberosum L. · Potato

John Mara

DK IE
11 records

Sinatra

Active

Solanum tuberosum L. · Potato

Saka Pflanzenzucht GmbH Co KG

DE
10 records

Elland

Active

Solanum tuberosum L. · Potato

M HIGGINS LTD

NL
10 records

Verona

Active

Solanum tuberosum L. · Potato

UNIPLANTA| Uniplanta - Saatzucht KG

CZ DE NL PL
19 records

Sunshine

Active

Solanum tuberosum L. · Potato

Solana, D

FR NL UA
10 records

Marta

Active

Solanum tuberosum L. · Potato

SOLANA SEEDS UNITED KINGDOM LTD. UNIT 4

CZ DE PL
10 records

Adretta

Active

Solanum tuberosum L. · Potato

NORIKA NORDRING-KARTOFFELZUCHTUND VERMEHRUNGS GmbH

DE LV SK
9 records

Agila

Active

Solanum tuberosum L. · Potato

Wolfgang Walter

DE LT LU
9 records

Shelford

Active

Solanum tuberosum L. · Potato

Robert W. Hoopes

NL UA
16 records

Natalia

Active

Solanum tuberosum L. · Potato

SOLANA SEEDS UNITED KINGDOM LTD. UNIT 4

DE UA
10 records

Osprey

Active

Solanum tuberosum L. · Potato

Jack Dunnett

LT NL
11 records

Mia

Active

Solanum tuberosum L. · Potato

Wolfgang Walter

DE UA
11 records

Fioretta

Active

Solanum tuberosum L. · Potato

Winfried Lange, Frank Lange

DE NL
10 records

Bikini

Active

Solanum tuberosum L. · Potato

Teagasc

IE UA
11 records

Baltic Fire

Active

Solanum tuberosum L. · Potato

Wolfgang Walter

SK UA
10 records

Sanjava

Active

Solanum tuberosum L. · Potato

DR. LUDWIG SIMON

CZ
8 records

Papageno

Active

Solanum tuberosum L. · Potato

SOLANA GMBH & CO KG

DE
12 records