Diseases

Grey mold

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.

Sources10

Breakdown by crop

Grey mold of grapevine 1 060 Grey Mold of Grapevine 544 Gray Mold of Garden Strawberry 160 Grey Mold of Sunflower 122 Grey mold of raspberry 36 Strawberry gray mold 30 Grey mold of zonal geranium 29 Tomato gray mold 29 Botrytis Blight of Lily 20 Chocolate Spot — Faba Bean 20 Grey mold — small-seeded faba bean 18 Grey Mold of Rose 17 Grey mold of pepper 13 Botrytis blight of Hydrangea macrophylla 12 Grey Mold of Lettuce 11 Grey mold of chrysanthemum 11 Grey Mold of Rapeseed 11 Grey Mold of Sweet Cherry 11 Gray mold of raspberry and blackberry 9 Peach Gray Mold 9 Petchoa Botrytis blight 9 Tulip Botrytis Blight 9 Gray mold of pea 9 Gray Mold of Poinsettia 8

Found in these crops

Grapevine 1 063 Common grape vine 538 Garden strawberry 161 Sunflower 68 Red raspberry 37 Strawberry 31 Horseshoe pelargonium 28 Tick Bean 28 Tomato 27 Broad bean 24 Lily 22 Rose 18

Varieties that feature this in their description

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.

Gascon

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

1 record

Gamay de Chaudenay

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

1 record

Gamay de Bouze

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

1 record

Fuella nera

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

1 record

FEREDEU

Terminated

Vitis vinifera L. · Common grape vine

DUMA MIHAIILLE IONATANOANA MARIADUMA TIBERIUDUMA MARINVANC FILIPLUCA MIRELAPOPI MORODAN CORNELIU

1 record

Galante

Active

Vitis vinifera L. · Common grape vine

Dr. Norbert Becker im Staatl. Weinbauinstitut

1 record

Fibion

Active

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

Instytut Ogrodnictwa - Państwowy Instytut Badawczy

2 records

Festyval'na romashka

Terminated

Fragaria L. · Strawberry

Kopan` Kyra Mykolaivna, Kopan Volodymyr Pavlovych,

1 record

Fer Servadou

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

1 record

Fer

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

1 record

Franc noir de la Haute-Saône

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

1 record

Felen

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

1 record

Florisia

Active

Vitis L. · Grapevine

Agroscope (CH)/Institut National de la Recherche Agronomique (FR)

1 record

Florental

Active

Vitis L. · Grapevine

INCONNU (FR)

1 record

Exalta

Active

Vitis vinifera L. · Common grape vine

INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR

2 records

Evita Blanche B

Active

Vitis L. · Grapevine

Georg WEISS (AT)/Gertrude MAYER (AT)

1 record

Findling

Active

Vitis vinifera L. · Common grape vine

AKTIONSGEMEINSCHAFT| Aktionsgemeinschaft zur Erhaltung von Rebsorten e.V. im DLR Rheinhessen-Nahe-Hunsrueck

2 records

Fidelio

Application submitted

Vitis vinifera L. · Common grape vine

Prof. Dr. H. Becker

4 records

Feunate

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

1 record

Feteasca Neagra N

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

1 record

Felicia

Active

Vitis vinifera L. · Common grape vine

Dr. Rudolf Eibach / Prof. Dr. Reinhard Töpfer

2 records

Elaris

Active

Vitis L. · Grapevine

Agroscope (CH)/Institut National de la Recherche Agronomique (FR)

1 record

EVIE 2

Terminated

Fragaria L. · Strawberry

VINSON PETER

1 record

EARLY CARDINAL

Withdrawn

Vitis L. · Grapevine

GERMONDARI LUCIANO (FR)

1 record

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Diseases

Powdery mildew 33 570
Fusarium wilt and blight 29 887
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Downy mildew 16 384
Leaf spot diseases 15 926
Rust 14 859
Verticillium wilt 12 175
Scab 12 064

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Text source

This summary is compiled from the publications listed in the sources and verified by an editor. It contains no legally significant information; it provides agronomic context for registry data rather than the registry data itself.