Skip to content

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.

Breonice

Active

Solanum lycopersicum L. · Tomato

Seminis Vegetable Seeds

NL
5 records

Bonus

Active

Solanum lycopersicum L. · Tomato

SEMILLAS FITO, S.A.

ES
4 records

Dokia

Active

Solanum lycopersicum L. · Tomato

Enza Zaden Beheer B.V.

NL
4 records

Zouk

Protection expired

Solanum lycopersicum L. · Tomato

Syngenta Seeds, NL

NL
3 records

Xantero

Active

Solanum lycopersicum L. · Tomato

AXIA VEGETABLE SEEDS B.V.

NL
4 records

Xaverius

Active

Solanum lycopersicum L. · Tomato

Axia Vegetable Seeds B.V.

NL
4 records

Vertion

Active

Solanum lycopersicum L. · Tomato

Nunhems B.V.

NL
5 records

Vinicio

Active

Solanum lycopersicum L. · Tomato

Enza Zaden Beheer B.V.

NL
5 records

Varela

Application submitted

Solanum lycopersicum L. · Tomato

Enza Zaden Beheer B.V.

NL
4 records

Verlenza

Application submitted

Solanum lycopersicum L. · Tomato

Enza Zaden Beheer B.V.

NL
5 records

Ventero

Active

Solanum lycopersicum L. · Tomato

De Ruiter Seeds NL B.V.

NL
4 records

Valinor

Active

Solanum lycopersicum L. · Tomato

Syngenta Crop Protection AG

NL
5 records

Vieri

Active

Solanum lycopersicum L. · Tomato

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
4 records

Valouro

Active

Solanum lycopersicum L. · Tomato

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
4 records

Torcida

Active

Solanum lycopersicum L. · Tomato

BEJO ZADEN B.V.

NL
4 records

Trevine

Active

Solanum lycopersicum L. · Tomato

Nunhems B.V.

NL
5 records

Tontelle

Active

Solanum lycopersicum L. · Tomato

Syngenta Seeds B.V.

NL
5 records

Solanum lycopersicum L. · Tomato

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
5 records

Takado

Active

Solanum lycopersicum L. · Tomato

Ikasido Global Group BV, NL

NL
3 records

Tabantha

Active

Solanum lycopersicum L. · Tomato

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
5 records

Starlisher

Application submitted

Solanum lycopersicum L. · Tomato

Bayer Holland B.V.

NL
4 records

Strabelina

Application submitted

Solanum lycopersicum L. · Tomato

Bayer Holland B.V.

NL
4 records

Spartus

Active

Solanum lycopersicum L. · Tomato

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
5 records

Sofianzo

Application submitted

Solanum lycopersicum L. · Tomato

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
4 records

Jump to page 3 7 21 23 27 34 41