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agronom.cc cultivar database

Diseases

Grape Powdery Mildew

Vitis vinifera L.

An obligate disease of grapevines caused by the fungus Erysiphe necator. The pathogen affects all green parts of the plant, causing the appearance of a powdery coating, organ deformation, and berry cracking.

In the reference 59 varieties crop Common grape vine, where this is mentioned in the description.

The causal agent of grape powdery mildew (oidium) is the ascomycete fungus Erysiphe necator. The infection affects leaves, shoots, inflorescences, and berries throughout the growing season. A characteristic sign is a whitish-gray powdery coating; brown or black spots may form on the shoots, as well as "flag shoots" developing from infected buds.

Leaf infection leads to curling and necrosis, while infection of inflorescences and berries causes them to drop, dry out, or crack. Affected shoots show reduced maturation capacity and frost resistance. Currently, cultivar resistance in agronomic practice is classified as relative, without differentiation by specific resistance genes.

General information about the subject — on the page Powdery 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.

AGUDELO

Active

Vitis vinifera L. · Common grape vine

ES
1 record

MAZUELA

Active

Vitis vinifera L. · Common grape vine

ES
1 record

MARFAL

Active

Vitis vinifera L. · Common grape vine

ES
1 record

Rudava

Active

Vitis vinifera L. · Common grape vine

SK
2 records

MORISCA

Application submitted

Vitis vinifera L. · Common grape vine

ES
1 record

Phoenix

Active

Vitis vinifera L. · Common grape vine

DE
2 records

MERSEGUERA

Active

Vitis vinifera L. · Common grape vine

ES
1 record

Catarratto

Active

Vitis vinifera L. · Common grape vine

MT
1 record

Ansonica

Active

Vitis vinifera L. · Common grape vine

MT
1 record

Grillo

Active

Vitis vinifera L. · Common grape vine

MT
1 record

Aglianico

Active

Vitis vinifera L. · Common grape vine

MT
1 record

Negroamaro

Active

Vitis vinifera L. · Common grape vine

MT
1 record

Traminer

Active

Vitis vinifera L. · Common grape vine

MT
1 record

Alvarinho

Active

Vitis vinifera L. · Common grape vine

MT
1 record

Black Magic

Active

Vitis vinifera L. · Common grape vine

MT
1 record

Greco

Active

Vitis vinifera L. · Common grape vine

MT
2 records

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