Vermilenza
ActiveSolanum lycopersicum L. · Tomato
Enza Zaden Beheer B.V.
NL
2 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.
Valkirias
ActiveSolanum lycopersicum L. · Tomato
Syngenta Seeds B.V.
NL
4 records
Tybalt
ActiveSolanum lycopersicum L. · Tomato
HAZERA SEEDS BV
ES
3 records
Valve
ActiveSolanum lycopersicum L. · Tomato
Maia Raudseping 80%, Kase 3, 48309 Jõgeva alevik, Valve Jaagus 20% (surnud)
EE
3 records
Ustica
ActiveSolanum lycopersicum L. · Tomato
Enza Zaden Beheer B.V.
NL
4 records
Vaincoeur
ActiveSolanum lycopersicum L. · Tomato
Monsanto Vegetable IP Management B.V.
NL
4 records
Vardanza
ActiveSolanum lycopersicum L. · Tomato
SEMILLAS FITO, S.A.
ES
3 records
Tradicia
TerminatedSolanum lycopersicum L. · Tomato
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
5 records
Tremolo
ActiveSolanum lycopersicum L. · Tomato
Enza Zaden Beheer B.V.
NL
3 records
UGI 57414
ActiveSolanum lycopersicum L. · Tomato
UNITED GENETICS SEEDS CO
PT
2 records
UGI 1852
ActiveSolanum lycopersicum L. · Tomato
UNITED GENETICS ITALIA S.P.A
PT
3 records
Trabuco
ActiveSolanum lycopersicum L. · Tomato
RAMIRO ARNEDO, S.A.
ES
2 records
Tyscala
ActiveSolanum lycopersicum L. · Tomato
Gautier Semences SAS (FR)
FR
3 records
Tovale
TerminatedSolanum lycopersicum L. · Tomato
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
4 records
Tourmalet
WithdrawnSolanum lycopersicum L. · Tomato
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
3 records
Tomicia
ActiveSolanum lycopersicum L. · Tomato
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
4 records
Tomala
TerminatedSolanum lycopersicum L. · Tomato
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
4 records
Tomalien
TerminatedSolanum lycopersicum L. · Tomato
Enza Zaden Beheer B.V.
NL
4 records
Trioset
TerminatedSolanum lycopersicum L. · Tomato
Syngenta Seeds B.V.
NL
2 records
Tobinaro
ActiveSolanum lycopersicum L. · Tomato
Enza Zaden Beheer B.V.
NL
4 records
Theracan
Application submittedSolanum lycopersicum L. · Tomato
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
3 records
Tiepolo
ActiveSolanum lycopersicum L. · Tomato
Enza Zaden Beheer B.V.
NL
2 records
Tica
ActiveSolanum lycopersicum L. · Tomato
KULTURSAAT E V
NL
3 records
Tirrenico
ActiveSolanum lycopersicum L. · Tomato
Rijk Zwaan Zaadteelt en Zaadhandel BV (NL)
FR
3 records