UGI 1796
ActiveSolanum lycopersicum L. · Tomato
UNITED GENETICS ITALIA S.P.A
PT
2 records
Diseases
Tomato powdery mildew
Solanum lycopersicum L.
A fungal disease caused primarily by the pathogens Oidium neolycopersici and Leveillula taurica. It manifests as a powdery coating on plant organs, causing chlorosis, tissue necrosis, and reduced productivity.
In the reference 351 varieties crop Tomato, where this is mentioned in the description.
The primary pathogens of the disease are Oidium neolycopersici, which frequently affects greenhouse crops, and Leveillula taurica, characteristic of hot and dry climates; Erysiphe communis and Sphaerotheca fuliginea are also encountered. In the case of Oidium neolycopersici infection, coalescing white spots appear on the upper surface of the leaves, whereas Leveillula taurica is characterized by yellowish spots and sporulation developing primarily on the underside of the leaf.
The infection leads to the withering and shedding of leaves, as well as damage to petioles and stems, which reduces photosynthetic activity and contributes to fruit undersizing and the risk of sunscald due to defoliation. For the breeding of resistant varieties, genes from wild tomato species are used, including the Ol-1 gene from S. hirsutum, and resistance in documentation is designated by codes Lt for Leveillula taurica and On or Ol for Oidium neolycopersici.
General information about the subject — on the page Powdery mildew.
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.
TT 722
ActiveSolanum lycopersicum L. · Tomato
TOMATECH R&D ISRAEL L.T.D.
ES
2 records
Tradicia
TerminatedSolanum lycopersicum L. · Tomato
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
5 records
Tovale
TerminatedSolanum lycopersicum L. · Tomato
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
4 records
Topuria
ActiveSolanum lycopersicum L. · Tomato
Vilmorin-Mikado SAS (FR)
FR
2 records
Tomicia
ActiveSolanum lycopersicum L. · Tomato
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
4 records
Tomarange
ActiveSolanum lycopersicum L. · Tomato
Enza Zaden Beheer B.V.
NL
2 records
Tomala
TerminatedSolanum lycopersicum L. · Tomato
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
4 records
Tojiro
ActiveSolanum lycopersicum L. · Tomato
UNITED GENETICS SEEDS CO
PT
2 records
Tobinaro
ActiveSolanum lycopersicum L. · Tomato
Enza Zaden Beheer B.V.
NL
4 records
Tiepolo
ActiveSolanum lycopersicum L. · Tomato
Enza Zaden Beheer B.V.
NL
2 records
Tatemaru
ActiveSolanum lycopersicum L. · Tomato
Monsanto Vegetable IP Management B.V.
NL
2 records
Sweeterno
ActiveSolanum lycopersicum L. · Tomato
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
4 records
SVTM9039
Application submittedSolanum lycopersicum L. · Tomato
Bayer Holland B.V.
NL
2 records
Supranax
ActiveSolanum lycopersicum L. · Tomato
Axia Vegetable Seeds B.V.
NL
3 records
Sunmaxx XR
Application submittedSolanum lycopersicum L. · Tomato
Axia NL B.V.
NL
3 records
Sunmaxx
ActiveSolanum lycopersicum L. · Tomato
Axia Vegetable Seeds B.V.
NL
3 records
Summer
ActiveSolanum lycopersicum L. · Tomato
Progene Seed s.s.a (IT)
BG
3 records
Speedax
ActiveSolanum lycopersicum L. · Tomato
Axia Vegetable Seeds B.V.
NL
3 records
Sotozon
Application submittedSolanum lycopersicum L. · Tomato
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
3 records
Solaxis
ActiveSolanum lycopersicum L. · Tomato
Axia NL B.V.
NL
3 records
Sjaleza
ActiveSolanum lycopersicum L. · Tomato
Enza Zaden Beheer B.V.
NL
3 records
Sixtina
ActiveSolanum lycopersicum L. · Tomato
Centre Tech. de Conservation des produits Agricoles (FR)/Institut National de la Recherche Agronomique (FR)
FR
3 records
Sharmita
ActiveSolanum lycopersicum L. · Tomato
Monsanto Vegetable IP Management B.V.
NL
4 records