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Diseases

Tomato Late Blight

Solanum lycopersicum L.

A fungal disease of tomato caused by the oomycete Phytophthora infestans, which affects all above-ground plant organs and is characterized by tissue necrosis under conditions of high air humidity.

In the reference 273 varieties crop Tomato, where this is mentioned in the description.

The pathogen Phytophthora infestans (Mont.) de Bary causes the formation of irregular, water-soaked lesions on leaves with a whitish layer of sporulation at humidity levels of 76% or higher. Elongated necrotic streaks form on the stems, leading to fragility, while infection of the fruits begins with firm, brown lesions that subsequently cause tissue softening or desiccation.

In breeding practice, resistance to the pathogen is based on the introgression of genes from the wild species Solanum pimpinellifolium. The Ph-3 gene is considered most effective for breeding and is often used in combination with Ph-2. In international standards, the resistance code for this disease is designated as Pi.

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

Sources8

Varieties of Tomato 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.

Black Prince

Active

Solanum lycopersicum L. · Tomato

Domaine Public (FR)

FR
2 records

Black Moon

Active

Solanum lycopersicum L. · Tomato

BURPEE NL B.V.

NL
2 records

Byelsa

Active

Solanum lycopersicum L. · Tomato

SEMILLAS FITO, S.A.

ES
3 records

Bauna

Active

Solanum lycopersicum L. · Tomato

Enza Zaden Beheer B.V.

NL
2 records

Batory

Terminated

Solanum lycopersicum L. · Tomato

PLANTICO HODOWLA I NASIENNICTWO OGRODNICZE ZIELONKI SP. Z O.O.

PL
2 records

Artemida

Active

Solanum lycopersicum L. · Tomato

HAO-DEMETER Vine, Fruit Trees and Vegetable Research Institute

GR
2 records

Awizo

Active

Solanum lycopersicum L. · Tomato

PLANTICO HODOWLA I NASIENNICTWO OGRODNICZE ZIELONKI SP. Z O.O.

PL
2 records

Anula

Terminated

Solanum lycopersicum L. · Tomato

Przedsiebiorstwo Nasiennictwa Ogrodniczego i Szkolkarstwa Spolka Akcyjna w upadlosci likwidacyjnej

PL
3 records

Akoya

Active

Solanum lycopersicum L. · Tomato

Syngenta Crop Protection AG

NL
2 records

Amana Orange

Terminated

Solanum lycopersicum L. · Tomato

Domaine Public (FR)

FR
2 records

1202

Active

Solanum lycopersicum L. · Tomato

PLANTENKWEKERIJ VREUGDENHIL B.V.

NL
3 records

Heinz 1370

Protection expired

Solanum lycopersicum L. · Tomato

FR HR SI
3 records

Voyager

Protection expired

Solanum lycopersicum L. · Tomato

NL SK
3 records

Katinka

Active

Solanum lycopersicum L. · Tomato

NL SK
4 records

Marienka

Active

Solanum lycopersicum L. · Tomato

CZ SK
4 records

Unibac

Active

Solanum lycopersicum L. · Tomato

CZ
2 records

Nemador

Terminated

Solanum lycopersicum L. · Tomato

NL
2 records

Cal J

Terminated

Solanum lycopersicum L. · Tomato

ES
2 records

Appio

Active

Solanum lycopersicum L. · Tomato

HU
2 records

UG 812 J

Terminated

Solanum lycopersicum L. · Tomato

NL
2 records

Rosaliya

Terminated

Solanum lycopersicum L. · Tomato

NL
2 records

Zeta

Active

Solanum lycopersicum L. · Tomato

HU
2 records

Semapeel

Active

Solanum lycopersicum L. · Tomato

CZ
3 records