Xirenita
ActiveSolanum lycopersicum L. · Tomato
Axia Vegetable Seeds B.V.
NL
4 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.
Xylia
ActiveSolanum lycopersicum L. · Tomato
Axia Vegetable Seeds B.V.
NL
3 records
Yarimaru
ActiveSolanum lycopersicum L. · Tomato
Monsanto Vegetable IP Management B.V.
NL
4 records
Xandor XR
ActiveSolanum lycopersicum L. · Tomato
Axia NL B.V.
NL
3 records
Xacao
ActiveSolanum lycopersicum L. · Tomato
Axia NL B.V.
NL
3 records
Xaranja
ActiveSolanum lycopersicum L. · Tomato
Axia Vegetable Seeds B.V.
NL
3 records
Xandor
ActiveSolanum lycopersicum L. · Tomato
Axia Vegetable Seeds B.V.
NL
3 records
Yakamoz
ActiveSolanum lycopersicum L. · Tomato
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
4 records
Web
ActiveSolanum lycopersicum L. · Tomato
Societa' Agricola Italiana Sementi -S.A.I.S S.p.a-
IT
2 records
Xolany
ActiveSolanum lycopersicum L. · Tomato
Axia Vegetable Seeds B.V.
NL
3 records
Xenia
ActiveSolanum lycopersicum L. · Tomato
Axia Vegetable Seeds B.V.
NL
3 records
Wafira
ActiveSolanum lycopersicum L. · Tomato
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
3 records
Volicia
TerminatedSolanum lycopersicum L. · Tomato
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
4 records
Viverino
ActiveSolanum lycopersicum L. · Tomato
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
4 records
Xidejia
ActiveSolanum lycopersicum L. · Tomato
NUNHEMS BEIJING SEEDS CO.
NL
4 records
Xantara
ActiveSolanum lycopersicum L. · Tomato
Axia Vegetable Seeds B.V.
NL
3 records
Vimoso
ActiveSolanum lycopersicum L. · Tomato
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
4 records
Vertyco
TerminatedSolanum lycopersicum L. · Tomato
Gautier Semences SAS (FR)
FR
3 records
Vivalto
ActiveSolanum lycopersicum L. · Tomato
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
4 records
Vistula
ActiveSolanum lycopersicum L. · Tomato
HM Clause Inc (US)
FR
2 records
Vincitori
Application submittedSolanum lycopersicum L. · Tomato
Syngenta Crop Protection AG
NL
3 records
Vilja
ActiveSolanum lycopersicum L. · Tomato
Valve Jaagus 80%, Maia Raudseping 20%
EE
3 records
Vallandzo
ActiveSolanum lycopersicum L. · Tomato
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
4 records
Vivary
ActiveSolanum lycopersicum L. · Tomato
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
4 records