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Diseases

Downy Mildew of Grapevine

Vitis vinifera L.

A fungal disease of grapevines caused by the oomycete Plasmopara viticola, affecting all green parts of the plant. It is characterized by the appearance of "oil" spots on leaves and a white sporulation bloom under high humidity conditions.

In the reference 33 varieties crop Common grape vine, where this is mentioned in the description.

The causal agent of the disease is the obligate parasite Plasmopara viticola. The pathogen infects the non-lignified parts of the vine, including leaves, shoots, inflorescences, and berries. On young leaves, the disease manifests as "oil" spots with a greasy sheen, while on older leaves, they acquire an angular shape. Under high humidity, a whitish-gray sporulation bloom develops on the underside of the leaf, after which the affected tissues undergo necrosis.

Infection of inflorescences and young berries is accompanied by the appearance of a gray bloom and subsequent rotting. On mature berries, the disease manifests as "brown rot," in which the fruits wither, darken, and mummify. Since most Vitis vinifera cultivars are susceptible to the pathogen, breeding is conducted using Rpv resistance genes borrowed from wild species, such as Rpv3, Rpv10, and Rpv12.

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

Sources8

Varieties of Common grape vine 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.

Ugni blanc

Active

Vitis vinifera L. · Common grape vine

BG ES FR MT
8 records

Italia

Active

Vitis vinifera L. · Common grape vine

BG ES FR MT
7 records

Pinot gris

Active

Vitis vinifera L. · Common grape vine

BG ES FR MT
7 records

Semillon

Active

Vitis vinifera L. · Common grape vine

ES FR SK
6 records

Malbec

Active

Vitis vinifera L. · Common grape vine

ES FR MT
6 records

Tempranillo

Active

Vitis vinifera L. · Common grape vine

ES FR MT
5 records

Colombard

Active

Vitis vinifera L. · Common grape vine

BG ES FR
5 records

Mourvèdre

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR MT
4 records

Sauvitage

Active

Vitis vinifera L. · Common grape vine

Staatliche Lehr- und Versuchsanstalt für Wein- und Obstbau Weinsberg

DE
4 records

Carignan

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR MT
4 records

Barbera

Active

Vitis vinifera L. · Common grape vine

Instituto Sperimentale per la Frutticoltura

FR MT
4 records

Palava

Active

Vitis vinifera L. · Common grape vine

Vivai Research Center, CZ

SK UA
3 records

Hibernal

Active

Vitis vinifera L. · Common grape vine

Prof. Dr. H. Becker

DE SK
4 records

Gensel 1

Active

Vitis vinifera L. · Common grape vine

Special Newfruit Licensing Mediterráneo S.L.U.

ES
3 records

Caladoc

Active

Vitis vinifera L. · Common grape vine

INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR

BG FR
4 records

Angela

Active

Vitis vinifera L. · Common grape vine

Jorg Wolf, D

DE HU
3 records

Gaminot

Active

Vitis vinifera L. · Common grape vine

Sicarex Beaujolais S.A.S., Institut National de Recherche pour l'Agriculture l'Alimentation et l'Environnement (INRAE)

FR
3 records

Katharina

Active

Vitis vinifera L. · Common grape vine

Jorg Wolf, D

3 records

Glera

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR
3 records

Ribol

Active

Vitis vinifera L. · Common grape vine

INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR

FR
4 records

Grenache

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR MT UA
3 records

Marselan

Active

Vitis vinifera L. · Common grape vine

INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR

ES FR
4 records

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