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Diseases

Powdery mildew of cucumber

Cucumis sativus L.

A fungal disease of cucumber caused by the obligate parasites Podosphaera xanthii and Golovinomyces cichoracearum, characterized by the appearance of a white powdery coating on leaves and a reduction in the market quality of fruits.

In the reference 1 031 varieties crop Cucumber, where this is mentioned in the description.

The pathogens of the disease are the ascomycetes Podosphaera xanthii and Golovinomyces cichoracearum. The infection begins with the appearance of an inconspicuous white coating on the underside of the leaves, which later forms white spots on the upper side of the leaf blade, increasing in size and merging into a continuous coating.

As the disease progresses, the leaves become deformed, wavy, and dry out, and in cases of severe infection, the vines die. Although the pathogen rarely affects the fruits directly, the general dehydration of the plant leads to fruit dwarfing, loss of marketability, and the development of bitterness.

Genetic resistance of the crop is controlled by a group of recessive pm genes, including pm-1, pm-2, pm-3, and pm-h. In the international classification of varieties, resistance to the pathogens Px (Podosphaera xanthii) and Gc (Golovinomyces cichoracearum) is indicated by codes HR for high resistance and IR for intermediate resistance.

General information about the subject — on the page Powdery mildew.

Sources8

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.

Blanc hâtif

Terminated

Cucumis sativus L. · Cucumber

Domaine Public (FR)

FR
3 records

Jowisz

Active

Cucumis sativus L. · Cucumber

P.P.H.U. OGRODNIK DARIUSZ NOWICKI

PL
2 records

Yolanda

Active

Cucumis sativus L. · Cucumber

AGRO TIP

GR
2 records

Tintero

Active

Cucumis sativus L. · Cucumber

Nunhems B.V.

NL
4 records

Pleasure

Active

Cucumis sativus L. · Cucumber

SEMILLAS FITO, S.A.

ES
2 records

Pierro

Active

Cucumis sativus L. · Cucumber

SEMILLAS FITO, S.A.

ES
2 records

Cezar

Active

Cucumis sativus L. · Cucumber

PlantiCo Hodowla i Nasiennictwo Ogrodnicze Golebiew sp. z o.o.

PL
3 records

Island

Active

Cucumis sativus L. · Cucumber

HAZERA SEEDS BV

ES
3 records

Gniewko

Active

Cucumis sativus L. · Cucumber

Zaklad Ogrodniczy Przyborow sp. z o.o.

PL
2 records

Izmir

Active

Cucumis sativus L. · Cucumber

SEMILLAS FITO, S.A.

ES
2 records

Max

Active

Cucumis sativus L. · Cucumber

W. LEGUTKO PRZEDSIEBIORSTWO HODOWLANO NASIENNE SP.Z.O.O

PL
2 records

Machos

Active

Cucumis sativus L. · Cucumber

Zaklad Ogrodniczy Przyborow sp. z o.o.

PL
2 records

Maximora

Active

Cucumis sativus L. · Cucumber

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
2 records

Hoplita

Active

Cucumis sativus L. · Cucumber

Monsanto Vegetable IP Management B.V.

NL
4 records

Sian

Active

Cucumis sativus L. · Cucumber

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
2 records

Kostas

Terminated

Cucumis sativus L. · Cucumber

Enza Zaden Beheer B.V.

NL
3 records

Ramezz

Active

Cucumis sativus L. · Cucumber

Bayer Holland B.V.

NL
4 records

Ronino

Terminated

Cucumis sativus L. · Cucumber

Zeraim Gedera Ltd (IL)

FR
2 records

Nilsa

Active

Cucumis sativus L. · Cucumber

Syngenta Crop Protection AG

NL
4 records

Bodega

Terminated

Cucumis sativus L. · Cucumber

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
3 records

Caronte

Active

Cucumis sativus L. · Cucumber

SEMILLAS FITO, S.A.

ES
2 records

Induran

Active

Cucumis sativus L. · Cucumber

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
2 records

Braga

Active

Cucumis sativus L. · Cucumber

Bejo Zaden B.V.

NL
3 records

Jairan

Active

Cucumis sativus L. · Cucumber

SEMILLAS FITO, S.A.

ES
2 records

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