Comoros
ActiveSolanum lycopersicum L. · Tomato
Enza Zaden Beheer B.V.
NL
3 records
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).
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.
Crokini
ActiveSolanum lycopersicum L. · Tomato
HM.Clause S.A.S.
NL
3 records
Crimson Star
ActiveSolanum lycopersicum L. · Tomato
Sakata Seed Corporation (SCC)^^^Sakata Vegetables Europe S.A.S.
NL
3 records
Dattochoco
ActiveSolanum lycopersicum L. · Tomato
Prosem (FR)
FR
2 records
Davolo
ActiveSolanum lycopersicum L. · Tomato
Gautier Semences SAS (FR)
FR
2 records
Clodano
ActiveSolanum lycopersicum L. · Tomato
Syngenta Seeds B.V.
NL
2 records
Claudino
ActiveSolanum lycopersicum L. · Tomato
Enza Zaden Beheer B.V.
NL
2 records
Damaress
ActiveSolanum lycopersicum L. · Tomato
Monsanto Vegetable IP Management B.V.
NL
4 records
Comendador
ActiveSolanum lycopersicum L. · Tomato
Enza Zaden Beheer B.V.
NL
3 records
Chumbito
ActiveSolanum lycopersicum L. · Tomato
Axia Vegetable Seeds B.V.
NL
3 records
Codino
ActiveSolanum lycopersicum L. · Tomato
Enza Zaden Beheer B.V.
NL
4 records
Curzio
ActiveSolanum lycopersicum L. · Tomato
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
4 records
Cuarzyta
ActiveSolanum lycopersicum L. · Tomato
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
4 records
Clotrino
Application submittedSolanum lycopersicum L. · Tomato
Syngenta Crop Protection AG
NL
3 records
Climston
TerminatedSolanum lycopersicum L. · Tomato
Syngenta Seeds B.V.
NL
2 records
Clemente
ActiveSolanum lycopersicum L. · Tomato
SEMILLAS FITO, S.A.
ES
3 records
Clavero
TerminatedSolanum lycopersicum L. · Tomato
Syngenta Seeds B.V.
NL
4 records
Chanelanzo
Application submittedSolanum lycopersicum L. · Tomato
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
3 records
Chantus
ActiveSolanum lycopersicum L. · Tomato
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
3 records
Climundo
ActiveSolanum lycopersicum L. · Tomato
Syngenta Crop Protection AG
NL
4 records
Cencara
ActiveSolanum lycopersicum L. · Tomato
Vilmorin-Mikado S.A.S.
FR
4 records
Corsica
ActiveSolanum lycopersicum L. · Tomato
Enza Zaden Beheer B.V.
NL
4 records
Ciciu
ActiveSolanum lycopersicum L. · Tomato
Syngenta Seeds B.V.
NL
4 records
Chelino
ActiveSolanum lycopersicum L. · Tomato
Enza Zaden Beheer B.V.
NL
2 records