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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.

Sirtema

Active

Solanum tuberosum L. · Potato

AT DK FR HR IT LU +1
12 records

Cardinal

Active

Solanum tuberosum L. · Potato

ES FR HR NL
11 records

Cilena

Active

Solanum tuberosum L. · Potato

DE FR IT LU NL
8 records

Majestic

Active

Solanum tuberosum L. · Potato

HR IT NL SI
6 records

Saskia

Protection expired

Solanum tuberosum L. · Potato

FR HR IT SK
5 records

Early rose

Active

Solanum tuberosum L. · Potato

FR HR SE
6 records

Urgenta

Protection expired

Solanum tuberosum L. · Potato

DK FR HR
7 records

Ornella

Active

Solanum tuberosum L. · Potato

CZ HU SK
6 records

VANESSA

Active

Solanum tuberosum L. · Potato

FR IE
6 records

King Edward

Active

Solanum tuberosum L. · Potato

DK IE
4 records

Katahdin

Application submitted

Solanum tuberosum L. · Potato

DK NL
5 records

Vénusz Gold

Protection expired

Solanum tuberosum L. · Potato

University of Pannonia,Potato Research Centre (HU)

HR HU
3 records

Vivaks

Protection expired

Solanum tuberosum L. · Potato

VERENIGDE KWEEKBEDRIJVEN (NL)

FR IE NL
4 records

Prominent

Protection expired

Solanum tuberosum L. · Potato

PRUMMEL (NL)

FR IE NL
4 records

Renova

Terminated

Solanum tuberosum L. · Potato

LAMSE J.J. (NL)

ES FR IE
4 records

Aladdin

Terminated

Solanum tuberosum L. · Potato

ZPC

ES FR IT
3 records

Ulysse

Active

Solanum tuberosum L. · Potato

SAS Bernard

FR NL
5 records

Triumpf

Terminated

Solanum tuberosum L. · Potato

Stephan Berger^^^JOSEF BERGER

AT DE
4 records

Skonto

Active

Solanum tuberosum L. · Potato

NIEHOFF| Dr. Karl-Heinrich Niehoff

AT DE
5 records

Rudawa

Active

Solanum tuberosum L. · Potato

Hodowla Ziemniaka Zamarte sp. z o.o. - Grupa IHAR

DE PL
5 records

Skawa

Active

Solanum tuberosum L. · Potato

Hodowla Ziemniaka Zamarte sp. z o.o. - Grupa IHAR

DE PL
4 records

Scarlett

Active

Solanum tuberosum L. · Potato

Y.P. van der Werff/ZPC

CZ NL
4 records

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