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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.

Solanum lycopersicum L. · Tomato

Syngenta Crop Protection AG

NL
2 records

Voyage

Active

Solanum lycopersicum L. · Tomato

Domaine Public (FR)

FR
2 records

Solanum lycopersicum L. · Tomato

ReinSaat KG

AT
2 records

Vesper

Terminated

Solanum lycopersicum L. · Tomato

Johnny's Selected Seeds

NL
2 records

Solanum lycopersicum L. · Tomato

BURPEE EUROPE LIMITED

NL
2 records

Solanum lycopersicum L. · Tomato

UNITED GENETICS SEEDS CO

PT
2 records

Ułan

Active

Solanum lycopersicum L. · Tomato

Przedsiębiorstwo Nasiennictwa Ogrodniczego i Szkółkarstwa Spółka Akcyjna w upadłości likwidacyjnej \Instytut Ogrodnictwa - Państwowy Instytut Badawczy

PL
3 records

UG 17219

Active

Solanum lycopersicum L. · Tomato

UNITED GENETICS SEEDS CO

PT
2 records

UG 13577

Active

Solanum lycopersicum L. · Tomato

UNITED GENETICS SEEDS CO

PT
2 records

Toddler

Active

Solanum lycopersicum L. · Tomato

BURPEE NL B.V.

NL
2 records

Syriusz

Active

Solanum lycopersicum L. · Tomato

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

PL
4 records

Solanum lycopersicum L. · Tomato

BURPEE NL B.V.

NL
2 records

Solito

Active

Solanum lycopersicum L. · Tomato

Pro-Veg Seeds Ltd. Unit N Peek House, Dales Manor Business Park

NL
2 records

Sixtina

Active

Solanum lycopersicum L. · Tomato

Centre Tech. de Conservation des produits Agricoles (FR)/Institut National de la Recherche Agronomique (FR)

FR
3 records

Sannio

Active

Solanum lycopersicum L. · Tomato

UNITED GENETICS SEEDS CO

PT
2 records

Ryton

Terminated

Solanum lycopersicum L. · Tomato

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

PL
2 records

Romello

Active

Solanum lycopersicum L. · Tomato

Pro-Veg Seeds Ltd. Unit N Peek House, Dales Manor Business Park

NL
2 records

Solanum lycopersicum L. · Tomato

Thompson & Morgan (Ipswich) Ltd

NL
2 records

Renate

Terminated

Solanum lycopersicum L. · Tomato

ARNDT| Dr. Hartmut Arndt

DE
3 records

Solanum lycopersicum L. · Tomato

UNITED GENETICS SEEDS CO

PT
3 records

Rejtan

Terminated

Solanum lycopersicum L. · Tomato

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

PL
2 records

Solanum lycopersicum L. · Tomato

Domaine Public (FR)

FR
2 records

Prometey

Active

Solanum lycopersicum L. · Tomato

Daniela Ganeva, Stanislava Tileva, Galina Pevicharova

BG
3 records