Muscat de Hamburg
ActiveVitis L. · Grapevine
Diseases
Vitis L.
A fungal disease of grapevines caused by Erysiphe necator. It manifests as a grayish-white coating on all green parts of the plant, causing shoot deformation, leaf necrosis, and berry cracking.
In the reference 110 varieties crop Grapevine, where this is mentioned in the description.
The causative agent of the disease is the fungus Erysiphe necator, which has an ascomycetous stage of development and a conidial stage known as Oidium tuckeri. The pathogen infects leaves, shoots, inflorescences, and berries, forming a characteristic powdery coating composed of mycelium and conidia.
A typical symptom of early infection is the development of 'flag shoots' from infected buds: they exhibit stunted growth, with leaves being deformed, curled, and covered in the coating. Noticeable brown necrotic spots form on the shoots, and affected berries lose the elasticity of their skin, crack, and often expose the seeds.
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 L. · Grapevine
Vitis L. · Grapevine
Vitis L. · Grapevine
Vitis L. · Grapevine
Vitis L. · Grapevine
Vitis L. · Grapevine
Vitis L. · Grapevine
INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR
Vitis L. · Grapevine
Teszlak Peter / Madaras Zoltan
Vitis L. · Grapevine
INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR
Vitis L. · Grapevine
INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR
Vitis L. · Grapevine
Institut National de la Recherche Agronomique (FR)/Bureau National Interprofessionnel du Cognac (FR)
Vitis L. · Grapevine
R.Gilg et Succ. SA (FR)
Vitis L. · Grapevine
INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR
Vitis L. · Grapevine
INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR
Vitis L. · Grapevine
JKI - Julius Kuhn Institut (DE)/Institut National de la Recherche Agronomique (FR)
Vitis L. · Grapevine
INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR
Vitis L. · Grapevine
INCONNU (FR)
Vitis L. · Grapevine
INCONNU (FR)
Vitis L. · Grapevine
Agroscope (CH)/Institut National de la Recherche Agronomique (FR)
Vitis L. · Grapevine
Instytut Sadownictwa i Kwiaciarstwa im. Szczepana Pieniążka
Vitis L. · Grapevine
Bakonyi Karoly / Bakonyi Laszlo / Kocsis Laszlo
Vitis L. · Grapevine
GERMONDARI LUCIANO (FR)
Vitis L. · Grapevine
Agroscope, CH
Vitis L. · Grapevine
INCONNU (FR)