Diseases
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.
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
N. Nedelchev, K. Stoev, M. Kondarev, Z. Zankov
Vitis vinifera L. · Common grape vine
Dr. Norbert Becker im Staatl. Weinbauinstitut
Vitis vinifera L. · Common grape vine
Gunvaldis Ilgvars Vesmins
Vitis vinifera L. · Common grape vine
Yordan K. Ivanov, Vasil Y. Valchev, Georgi S. Petkov
Vitis vinifera L. · Common grape vine
INCONNU (FR)
Vitis vinifera L. · Common grape vine
Zdravko Nakov, Vasil Valchev, Miroslav Ivanov, Vanyo Haygarov
Vitis vinifera L. · Common grape vine
Gabriele Di Gaspero^^^Guido Cipriani^^^Simone Diego Castellarin^^^Michele Morgante^^^Enrico Peterlunger^^^Raffaele Testolin
Vitis vinifera L. · Common grape vine
Prof. Dr. H. Becker
Vitis vinifera L. · Common grape vine
Valentin Blattner-Haefeli und Frau Silvia
Vitis vinifera L. · Common grape vine
Lykhovs`koi Volodymyr Volodymyrovych, Kotolovets` Zinaida Viktorivna, Poluliakh Alla Anatoliivna, Volynkin Volydymyr Oleksandrovych,
Vitis vinifera L. · Common grape vine
Institut National de Recherche pour l'Agriculture l'Alimentation et l'Environnement (INRAE)
Vitis vinifera L. · Common grape vine
INCONNU (FR)
Vitis vinifera L. · Common grape vine
INCONNU (FR)
Vitis vinifera L. · Common grape vine
Gabriele Di Gaspero^^^Guido Cipriani^^^Simone Diego Castellarin^^^Michele Morgante^^^Enrico Peterlunger^^^Raffaele Testolin
Vitis vinifera L. · Common grape vine
INCONNU (FR)
Vitis vinifera L. · Common grape vine
Institut National de Recherche pour l'Agriculture l'Alimentation et l'Environnement (INRAE)
Vitis vinifera L. · Common grape vine
Dr. Norbert Becker im Staatl. Weinbauinstitut
Vitis vinifera L. · Common grape vine
Dr. Rudolf Eibach / Prof. Dr. Reinhard Töpfer
Vitis vinifera L. · Common grape vine
Prof. Dr. H. Becker
Vitis vinifera L. · Common grape vine
INCONNU (FR)
Vitis vinifera L. · Common grape vine
INCONNU (FR)
Vitis vinifera L. · Common grape vine
Hochschule Geisenheim University Institut für Pflanzenzüchtung Herrn Prof. Dr. Ernst Rühl
Vitis vinifera L. · Common grape vine
INCONNU (FR)
Vitis vinifera L. · Common grape vine
INCONNU (FR)