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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.

Alcmaria

Active

Solanum tuberosum L. · Potato

VERENIGDE KWEEKBEDRIJVEN (NL)

FR IE IT NL
7 records

Biogold

Application submitted

Solanum tuberosum L. · Potato

VAN RIJN-KWS B.V.

NL UA
9 records

Triplo

Active

Solanum tuberosum L. · Potato

STET HOLLAND

GR HR NL
10 records

White Lady

Active

Solanum tuberosum L. · Potato

University of Pannonia,Potato Research Centre (HU)

HR HU SI
8 records

Ratte

Active

Solanum tuberosum L. · Potato

QVFOODS FLEET ESTATE OFFICE

ES FR LU
6 records

Osiris

Active

Solanum tuberosum L. · Potato

Winfried Lange, Frank Lange

DE NL UA
9 records

Larissa

Active

Solanum tuberosum L. · Potato

NORIKA Nordring- Kartoffelzucht- und Ver

DE NL UA
11 records

Melissa

Active

Solanum tuberosum L. · Potato

UNICOPA/CLAUSE

DE ES FR
9 records

Inara

Active

Solanum tuberosum L. · Potato

Wolfgang Walter

DE NL UA
11 records

Glorietta

Active

Solanum tuberosum L. · Potato

Heinrich Böhm

FR LU NL
9 records

Balder

Active

Solanum tuberosum L. · Potato

Kweekbedrijf-Zpc (NL)

DK FR IT
8 records

Zafira

Active

Solanum tuberosum L. · Potato

Kweek- en Researchbedrijf Agrico B.V.

HR NL
8 records

Ventana

Active

Solanum tuberosum L. · Potato

Heinrich Böhm

DE UA
8 records

Ambo

Active

Solanum tuberosum L. · Potato

Teagasc

ES IE NL
10 records

Vitabella

Active

Solanum tuberosum L. · Potato

PLANTERA SEED BV

MT NL
9 records

Topaze

Active

Solanum tuberosum L. · Potato

GERMICOPA S.A.S

PT UA
8 records

Tornado

Active

Solanum tuberosum L. · Potato

Teagasc Crops Research Centre

IE UA
13 records

Sierra

Active

Solanum tuberosum L. · Potato

PLANT BREEDING INTERNATIONAL CAMBRIDGE

CZ PL
9 records

SH C 909

Active

Solanum tuberosum L. · Potato

STET Holland BV, Netherlands

NL UA
10 records

Siena

Active

Solanum tuberosum L. · Potato

van Loon, J.P.

FR NL
8 records

Sevim

Active

Solanum tuberosum L. · Potato

Ludwig Simon

DE UA
8 records

Newton

Active

Solanum tuberosum L. · Potato

ROBERT HOOPES

NL UA
15 records

Nafida

Active

Solanum tuberosum L. · Potato

Germicopa Breeding S.A.S

NL UA
8 records

Matilda

Application submitted

Solanum tuberosum L. · Potato

Nilsson, Bengt

FI SE
8 records

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