Kantaka
ActiveCucumis sativus L. · Cucumber
Syngenta Seeds B.V.
NL
2 records
Diseases
Cucumber Scab
Cucumis sativus L.
A fungal disease of cucumber caused by Cladosporium cucumerinum, manifesting as olive-colored leaf spots and fruit lesions. The crop's resistance to the pathogen is controlled by a dominant monogenic trait designated as the Ccu gene.
In the reference 568 varieties crop Cucumber, where this is mentioned in the description.
The causal agent of the disease is the fungus Cladosporium cucumerinum Ellis et Arth., belonging to the class Dothideomycetes. The infection affects all above-ground plant organs, including stems, petioles, leaves, and fruits. On young cucumbers, the disease manifests as small watery spots that turn into deep brown lesions, from which gum may exude, causing deformation and growth cessation of the fruits.
On leaf blades, angular spots form with an olive-gray hue and a yellow halo, on the underside of which, under high humidity, a characteristic velvety olive-black coating of conidial sporulation develops. Damage to stems and petioles by dry lesions leads to nutrient disruption and subsequent plant wilting.
In breeding practice, cucumber resistance to olive leaf spot is transmitted as a dominant monogenic trait. This resistance gene is identified by the symbol Ccu, which is used when describing breeding hybrids and cultivars of the crop.
General information about the subject — on the page Leaf mold (brown leaf spot).
Varieties of Cucumber 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.
Joyfit
ActiveCucumis sativus L. · Cucumber
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
3 records
Invictus
ActiveCucumis sativus L. · Cucumber
Monsanto Vegetable IP Management B.V.
NL
4 records
Henley
ActiveCucumis sativus L. · Cucumber
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
2 records
Habeeb
ActiveCucumis sativus L. · Cucumber
Syngenta Crop Protection AG
NL
3 records
Guapan
ActiveCucumis sativus L. · Cucumber
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
2 records
Grovik
Application submittedCucumis sativus L. · Cucumber
Enza Zaden Beheer B.V.
NL
3 records
Gynial
ActiveCucumis sativus L. · Cucumber
Vilmorin SA (FR)
FR
2 records
Fileas
ActiveCucumis sativus L. · Cucumber
Syngenta Seeds B.V.
NL
2 records
Elsie
ActiveCucumis sativus L. · Cucumber
Syngenta Seeds B.V.
NL
3 records
Esben
ActiveCucumis sativus L. · Cucumber
Syngenta Seeds B.V.
NL
2 records
Enija
ActiveCucumis sativus L. · Cucumber
Kees Broersen Zaden
PL
2 records
Españolo
ActiveCucumis sativus L. · Cucumber
CAPITAL GENETIC EBT, S.L.
ES
2 records
Drago
ActiveCucumis sativus L. · Cucumber
SEMILLAS FITO, S.A.
ES
2 records
Ermis
ActiveCucumis sativus L. · Cucumber
Syngenta Crop Protection AG
NL
3 records
Dogo
ActiveCucumis sativus L. · Cucumber
RAMIRO ARNEDO, S.A.
ES
2 records
Cusina
Application submittedCucumis sativus L. · Cucumber
Nunhems Netherlands B.V.
NL
3 records
Dezdemona
ActiveCucumis sativus L. · Cucumber
HORAL JIRI / ALEKSEEV YuRIJ BORISOVICh
UA
3 records
Columna
ActiveCucumis sativus L. · Cucumber
AGROSEL S.R.L.
RO
3 records
Cierzo
TerminatedCucumis sativus L. · Cucumber
Enza Zaden Beheer B.V.
NL
3 records
Commander
TerminatedCucumis sativus L. · Cucumber
Harris Moran Seed Company (USA) (US)
FR
2 records
Chorus
ActiveCucumis sativus L. · Cucumber
W. LEGUTKO PRZEDSIEBIORSTWO HODOWLANO NASIENNE SP.Z.O.O
PL
2 records
Caruso
ActiveCucumis sativus L. · Cucumber
PLANTICO HODOWLA I NASIENNICTWO OGRODNICZE ZIELONKI SP. Z O.O.
PL
2 records
Carranza
ActiveCucumis sativus L. · Cucumber
SEMILLAS FITO, S.A.
ES
2 records