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Diseases

Potato late blight

Solanum tuberosum L.

A dangerous disease caused by the oomycete Phytophthora infestans, which affects potato foliage and tubers. It is characterized by high genetic variability of the pathogen and the presence of vertical resistance based on R-genes.

In the reference 1 396 varieties crop Potato, where this is mentioned in the description.

The causative agent of the disease is Phytophthora infestans, which affects all plant organs. On the foliage, symptoms appear in the second half of the growing season as brown spots with a characteristic white fungal growth under high humidity. Infected tubers become covered with firm, sunken spots with a rusty-brown dry rot in the flesh.

Pathogen populations include complex races with multiple virulence genes capable of overcoming the resistance provided by R1, R2, R3, and other genes. In potato breeding, a distinction is made between vertical resistance, based on R-genes from wild species, and horizontal polygenic resistance, which restricts disease development regardless of the race composition of the pathogen.

General information about the subject — on the page Late blight.

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.

Symfonia

Active

Solanum tuberosum L. · Potato

WALSMA| A. Walsma

CZ DE ES HR IT NL
18 records

Manitou

Active

Solanum tuberosum L. · Potato

Thema S. Mansholt

HR NL PL PT UA
23 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

Labadia

Active

Solanum tuberosum L. · Potato

Van Rijn Group

GR HR NL PL UA
18 records

Infinity

Active

Solanum tuberosum L. · Potato

Teagasc Crops Research Centre

IE UA
24 records

Evora

Active

Solanum tuberosum L. · Potato

R.P.GRAVELAND

NL UA
22 records

Panamera

Active

Solanum tuberosum L. · Potato

R.P.GRAVELAND

NL
17 records

Arielle

Active

Solanum tuberosum L. · Potato

Cooeperatie Agrico U.A.

BG CZ EE FI HR LT +6
18 records

Romina

Active

Solanum tuberosum L. · Potato

NIEDERSTERREICHISCHE SAATBAUGENOSSENSCHT

AT DK EE ES FR HR +4
18 records

Fresco

Active

Solanum tuberosum L. · Potato

WOLF & WOLF B.V.

BE CZ DE EE FR HR +6
16 records

Oleva

Active

Solanum tuberosum L. · Potato

Landbrugets Kartoffelfond, Foraedlst., DK-7184 Vandel

DE DK EE ES FI FR +4
19 records

Kennebec

Active

Solanum tuberosum L. · Potato

USDA MAINE

ES FR GR HR IT LU +3
15 records

Aladin

Active

Solanum tuberosum L. · Potato

Wildeboer, J. J.

HR HU LT MT NL PL +3
17 records

Cicero

Active

Solanum tuberosum L. · Potato

Mme R.M. Schouten (NL)/J.A. Crebas (NL)

CZ DE FR GR HU IT +3
21 records

Courage

Active

Solanum tuberosum L. · Potato

VAN DER LEEST B^^^NAUTA J.G.

CZ EE GR HR HU IT +3
16 records

Caesar

Active

Solanum tuberosum L. · Potato

KWEEKBEDRIJF ROPTA ZPC

BG DE DK ES FR IE +2
17 records

Vivaldi

Active

Solanum tuberosum L. · Potato

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

CZ FR HR IT LT NL +1
21 records

Madeleine

Active

Solanum tuberosum L. · Potato

R.J. Mansholt's Veredelingsbedrijf

BG HR MT NL PL UA
19 records

Miranda

Active

Solanum tuberosum L. · Potato

SOLANA DEUTSCHLAND GmbH

CZ DK IT SI UA
20 records

Juliette

Active

Solanum tuberosum L. · Potato

GERMIMCOPA BREEDING (GERMICOPA SAS)

DE FR HU PL SK
21 records

Melody

Active

Solanum tuberosum L. · Potato

J.P.M.Muijsers

BG NL PL SI
20 records

Gioconda

Active

Solanum tuberosum L. · Potato

KWEEEKBEDRYJF ROPTA-ZPC

ES IT NL
18 records

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