Diseases
Botrytis cinerea
Grey mold is a polyphagous fungal disease manifesting as watery spots and a characteristic grey fuzzy growth on plant organs. The disease causes tissue softening and decay, often affecting plants during the flowering or ripening stages.
Mentioned in descriptions 7 316 varieties reference book.
The pathogen is a facultative parasite that develops on living tissues, weakened plants, and plant debris. Externally, the pathology manifests as the appearance of a grey fuzzy growth consisting of fungal mycelium and spores, as well as watery spots leading to tissue softening and wilting of the affected areas.
Pathogen activity depends directly on environmental conditions. The disease develops most aggressively at temperatures between +15 and +25°C and high relative humidity above 80–90%. The presence of free moisture, high planting density, mechanical damage, and physiological weakness of the plants significantly contribute to the spread of the infection.
Varietal resistance is complex in nature and is determined by the morphological characteristics of the plants, their chemical composition, and ontogenetic differences. In the state variety testing system, phytopathological assessment is conducted on a scale from 0 to 5 points by analyzing the natural infection background, which allows for the identification of genotypes that are resistant, tolerant, or susceptible to the pathogen.
Selection based on the description text, not official resistance ratings: such data is not available in registers. Mention indicates that the trait is discussed in the variety's sources; see the variety's profile for details on what is specifically stated.
Pelargonium zonale (L.) L'Hér. · Horseshoe pelargonium
GOLDSMITH SEEDS
Vitis L. · Grapevine
INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR
Cucumis melo L. · Melon
Robert Priieur
Vitis vinifera L. · Common grape vine
LAND BAYERN WUERZBURG| Land Bayern, vertreten durch Bayerische Landesanstalt fuer Weinbau und Gartenbau - Abt. Weinbau und Oenologie -
Vitis vinifera L. · Common grape vine
INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR
Vitis vinifera L. · Common grape vine
INCONNU (FR)
Vicia faba L. var. minuta (hort. ex Alef.) Mansf. · Tick Bean
STEUCKARDT| Dr. Rudolf Steuckardt in Fa. Saatzucht Gotha-Friedrichswerth / DIETRICH MANFRED| Manfred Dietrich / HAEUSER| Ute Haeuser / SATTLER| B. Sattler in Fa. Thueringer Pflanzenzucht GmbH Gotha-
Brassica oleracea L. (White Cabbage Group) · White cabbage
Monakhos Hryhorii Fedorovych
Lilium L. · Lily
KONINKLIJKE VAN ZANTEN B.V.
Vitis vinifera L. · Common grape vine
INCONNU (FR)
Fragaria L. · Strawberry
Kopan Volodymyr Pavlovych, Kopan` Kira Mykolaivna,
Fragaria x ananassa Duchesne ex Rozier · Garden strawberry
Fresh Forward Holding B.V.
Vitis vinifera L. · Common grape vine
Hochschule Geisenheim University Institut für Pflanzenzüchtung Herrn Prof. Dr. Ernst Rühl
Chrysanthemum L. · Chrysanthemum
PETER WAIN
Limonium sinuatum (L.) Mill. · Statice
van Zanten Plants b.v
Chrysanthemum L. · Chrysanthemum
Mark A. Smith
Petunia Juss. · Petunia
Kazunari Iwaki^^^Shunsuke Takeuchi^^^Takeshi Kanaya^^^Yukihiro Ikeda
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Kwekerij Sidaco B.V.
Vitis vinifera L. · Common grape vine
Institut National de Recherche pour l'Agriculture l'Alimentation et l'Environnement (INRAE)
Plectranthus ornatus
Ralf Schräder
Fragaria x ananassa Duchesne ex Rozier · Garden strawberry
Franco Capocasa^^^Bruno Mezzetti
Lilium L. · Lily
C. Steenvoorden B.V.
Rudbeckia hirta L. · Black-eyed Susan
Nova Perenne B.V.
Lavandula L. · Lavender
Marilyn Wightman