Diseases

Downy Mildew of Grapevine

Vitis L.

A fungal-like disease of grapevines caused by the oomycete Plasmopara viticola. It affects all green parts of the plant, causing the appearance of "oily" spots on leaves and the necrosis of inflorescences and berries.

In the reference 58 varieties crop Grapevine, where this is mentioned in the description.

The pathogen is the obligate oomycete Plasmopara viticola, which overwinters as oospores in fallen leaves and plant debris, remaining viable in the soil for up to five years. The primary symptom of the disease is the appearance of yellowish or light olive "oily" spots on the upper side of the leaf, while in high humidity, a whitish sporulation layer forms on the underside.

The infection spreads to all non-lignified vine organs, including shoots, inflorescences, and rachises, leading to their wilting, deformation, and subsequent tissue necrosis. Due to the lack of resistance in Vitis vinifera species, breeding programs utilize donors with Rpv genes, such as Rpv3, Rpv10, and Rpv12, as well as Pva and Pvr loci identified in wild species of the genus Vitis.

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

Sources8

Varieties of Grapevine 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.

Roesler

Active

Vitis L. · Grapevine

HÖHERE BUNDESLEHRANSTALT UND BUNDESAMT FÜR WEIN UND OBSTBAU

2 records

Gravesac

Active

Vitis L. · Grapevine

INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR

3 records

Suffolk Red

Active

Vitis L. · Grapevine

Cornell University Foundation Inc (US)

2 records

Ravat 6

Active

Vitis L. · Grapevine

INCONNU (FR)

2 records

Voltis

Active

Vitis L. · Grapevine

INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR

2 records

5455 Seibel

Active

Vitis L. · Grapevine

INCONNU (FR)

2 records

Bronner

Active

Vitis L. · Grapevine

Norbert Becker

2 records

188-2 Kuhlmann

Active

Vitis L. · Grapevine

INCONNU (FR)

2 records

Cerason

Active

Vitis L. · Grapevine

Prof. Ing. Vilém Kraus, CSc. (CZ)

3 records

Danko

Active

Vitis L. · Grapevine

GOLODRIGA PAVEL YaKOVLEVICh / USATOV VLADIMIR TROFIMOVICh / MAL'ChIKOV YuRIJ ALEKSANDROVICh / KIREEVA LYuDMILA KONSTANTINOVNA / DUBOVENKO NEONILA PETROVNA / RAZUVAEV NIKOLAJ IVANOVICh

2 records