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Diseases

Tomato Leaf Mold

Solanum lycopersicum L.

An economically significant disease of tomatoes caused by the fungus Passalora fulva, characterized by the appearance of chlorotic spots on leaves followed by the formation of an olive-brown velvety mold on their undersides.

In the reference 1 086 varieties crop Tomato, where this is mentioned in the description.

The causal agent of the disease is the monophagous fungus Passalora fulva. The pathogen possesses high genetic variability, which allows it to adapt to cultivar resistance genes; consequently, the classification of races includes numerous groups, and many previously effective resistance genes have lost their significance.

Symptoms appear on the leaves as ill-defined chlorotic spots, beneath which a characteristic velvety mold forms on the underside of the leaf blade, eventually turning olive or brown in color. As the disease progresses, the tissues become necrotic, leading to wilting, curling, and premature shedding of the leaves.

In tomato breeding, more than 20 resistance genes to the pathogen are known, designated as Cf. In professional cultivar descriptions, resistance is marked with codes Ff, Pf, or C, often with appended numbers indicating resistance to specific fungal races; however, such protection is not absolute and may be overcome by new aggressive strains.

General information about the subject — on the page Leaf mold (brown leaf spot).

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.

Dombito

Protection expired

Solanum lycopersicum L. · Tomato

ES HR NL PL SI
7 records

Dombello

Protection expired

Solanum lycopersicum L. · Tomato

HR NL PL SI
5 records

Marfa

Protection expired

Solanum lycopersicum L. · Tomato

BG CZ SK
4 records

Elin

Terminated

Solanum lycopersicum L. · Tomato

W WEIBULL

DK SE
3 records

Sanpavel

Active

Solanum lycopersicum L. · Tomato

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL UA
4 records

Rebelski

Active

Solanum lycopersicum L. · Tomato

Bernardus van den Bosch

NL UA
5 records

Piccodona

Active

Solanum lycopersicum L. · Tomato

Syngenta Crop Protection AG

NL UA
5 records

Madano

Active

Solanum lycopersicum L. · Tomato

Syngenta Crop Protection AG

NL UA
5 records

Shady Lady

Application submitted

Solanum lycopersicum L. · Tomato

Rene Khenkuet

NL UA
4 records

Zhamilya

Active

Solanum lycopersicum L. · Tomato

RIJK ZWAAN Zaadteelt en Zaadhandel B.V.

NL UA
5 records

Zoltano

Terminated

Solanum lycopersicum L. · Tomato

Rijk Zwaan B.V.

NL PL
3 records

Valerioso

Active

Solanum lycopersicum L. · Tomato

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL UA
6 records

Tredicy

Terminated

Solanum lycopersicum L. · Tomato

Syngenta Seeds B.V.

NL UA
5 records

Wasmiya

Active

Solanum lycopersicum L. · Tomato

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL UA
6 records

Volna

Active

Solanum lycopersicum L. · Tomato

Vilmorin SA (FR)

FR UA
4 records

Wasino

Active

Solanum lycopersicum L. · Tomato

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL UA
6 records

Tyerno

Terminated

Solanum lycopersicum L. · Tomato

SYNGENTA SEEDS B.V.

ES NL
3 records

Toronjina

Active

Solanum lycopersicum L. · Tomato

Kees Konst

NL UA
3 records

Trust

Active

Solanum lycopersicum L. · Tomato

DE RUITER SEEDS

NL PL
5 records

Trovanzo

Active

Solanum lycopersicum L. · Tomato

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL UA
6 records

Tomary

Active

Solanum lycopersicum L. · Tomato

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL UA
6 records

Tarquito

Active

Solanum lycopersicum L. · Tomato

Kees Konst

NL UA
6 records

Stupice

Active

Solanum lycopersicum L. · Tomato

keine Angabe

AT FR
3 records

Tazawa

Active

Solanum lycopersicum L. · Tomato

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL UA
4 records

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