Diseases
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.
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.
Vitis vinifera L. · Common grape vine
AKTIONSGEMEINSCHAFT| Aktionsgemeinschaft zur Erhaltung von Rebsorten e.V. im DLR Rheinhessen-Nahe-Hunsrueck
Vitis vinifera L. · Common grape vine
Ivan Todorov, Galina Dyakova
Vitis vinifera L. · Common grape vine
INCONNU (FR)
Vitis vinifera L. · Common grape vine
Zdravko Zankov, Ivan Todorov, Kunyu Stoev
Vitis vinifera L. · Common grape vine
Vivai Cooperativi di Rauscedo (VCR)
Vitis vinifera L. · Common grape vine
Tarakhtii Liudmyla Ivanivna, Meleshko Larysa Fedorivna, Yarmak IEvheniia Dmytrivna, Storozhuk Kateryna Moiseivna, Dylyk Antonina Petrivna, Dokuchaieva IEvheniia Mykolaivna, Chebanenko IEvheniia Pavlivna,
Vitis vinifera L. · Common grape vine
INCONNU (FR)
Vitis vinifera L. · Common grape vine
INCONNU (FR)
Vitis vinifera L. · Common grape vine
INCONNU (FR)
Vitis vinifera L. · Common grape vine
Marco Stefanini
Vitis vinifera L. · Common grape vine
INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR
Vitis vinifera L. · Common grape vine
Dr. Norbert Becker im Staatl. Weinbauinstitut
Vitis vinifera L. · Common grape vine
INCONNU (FR)
Vitis vinifera L. · Common grape vine
INCONNU (FR)
Vitis vinifera L. · Common grape vine
INCONNU (FR)
Vitis vinifera L. · Common grape vine
Dr. Helmut Schleip (+) in Staatliche Lehr- und Versuchs- anstalt für Wein- und Obstbau
Vitis vinifera L. · Common grape vine
INCONNU (FR)
Vitis vinifera L. · Common grape vine
Harold P. OLMO et Albert T. KOYAMA (US)
Vitis vinifera L. · Common grape vine
INCONNU (FR)
Vitis vinifera L. · Common grape vine
INCONNU (FR)
Vitis vinifera L. · Common grape vine
LAND RHEINLAND OPPENHEIM| Land Rheinland-Pfalz, vertreten durch das DLR Rheinhessen-Nahe-Hunsrueck Dienstsitz Oppenheim
Vitis vinifera L. · Common grape vine
Dr. Norbert Becker im Staatl. Weinbauinstitut
Vitis vinifera L. · Common grape vine
Kalashnikov IUrii Mykolaiovych, Timukin IUrii Oleksandrovych, Yatskov Viktor Mykhailovych, Yurchenko Volodymyr IUriiovych, Kostik Mariia Antonivna, Holodryha Pavlo IAkovych,
Vitis vinifera L. · Common grape vine
INCONNU (FR)