Skip to content

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.

Nemo

Active

Solanum tuberosum L. · Potato

Fobek B.V., Tuberosum Technologies Inc.

NL
6 records

Solanum tuberosum L. · Potato

NORIKA Nordring-Kartoffelzucht-und Vermehrungs-GmbH Gross Luesewitz

DE
4 records

Nevadina

Active

Solanum tuberosum L. · Potato

Europlant Pflanzenzucht GmbH

DE
5 records

Moritz

Active

Solanum tuberosum L. · Potato

Stephan Berger

DE
4 records

Melrose

Active

Solanum tuberosum L. · Potato

Romagnoli FLLI SpA

IT
5 records

Meireska

Active

Solanum tuberosum L. · Potato

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

AT
4 records

Solanum tuberosum L. · Potato

SCOTTISH CROP RESEARCH INSTITUTE

IE
5 records

Maya

Active

Solanum tuberosum L. · Potato

Danespo A/S

DK
5 records

Meera

Active

Solanum tuberosum L. · Potato

PLANTERA SEED BV

NL
6 records

Megusta

Active

Solanum tuberosum L. · Potato

Bavaria Saat GbR

DE
4 records

Maverick

Active

Solanum tuberosum L. · Potato

Station de Recherche du Comité Nord G.I.E.

FR
5 records

Marizza

Active

Solanum tuberosum L. · Potato

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

AT
5 records

Marlie

Active

Solanum tuberosum L. · Potato

Europlant Pflanzenzucht GmbH

DE
6 records

Solanum tuberosum L. · Potato

JAMES HUTTON LTD

IE
5 records

Megan

Active

Solanum tuberosum L. · Potato

VŠÚZ - Výskumný a šlachtitelský ústav zemiakársky a.s.

SK
5 records

Solanum tuberosum L. · Potato

Piet H.Smeenge

NL
6 records

Luna

Terminated

Solanum tuberosum L. · Potato

ZIMMERMANN WILLI| Willi Zimmermann

DE
5 records

Mary Ann

Active

Solanum tuberosum L. · Potato

NORIKA Nordring- Kartoffelzucht- und Ver

DE
5 records

Lukas

Active

Solanum tuberosum L. · Potato

Saka Pflanzenzucht GmbH Co KG

DE
4 records

LD17

Active

Solanum tuberosum L. · Potato

Station de Recherche du Comité Nord G.I.E.

FR
4 records

Leonore

Active

Solanum tuberosum L. · Potato

Kweek- en Researchbedrijf Agrico B.V.

NL
5 records

Lea

Active

Solanum tuberosum L. · Potato

SOLANA SEEDS UNITED KINGDOM LTD. UNIT 4

DE
7 records

Lili

Application submitted

Solanum tuberosum L. · Potato

SVALOF AB

BE
3 records

Jubilat

Active

Solanum tuberosum L. · Potato

Pomorsko Mazurska Hodowla Ziemniaka Sp.z o.o. z siedziba w Strzekecinie

PL
5 records

Jump to page 8 17 21 25 34 41 42 51