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.

Espanenc

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

1 record

DrisStrawFortyTwo

Terminated

Fragaria L. · Strawberry

Raquel Cervantes Moreno, Jorge Rodriguez Alcazar,

1 record

Enfarine Noir

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

1 record

Domina

Active

Vitis vinifera L. · Common grape vine

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

2 records

Elbling

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

1 record

Doucillon blanc

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

1 record

Donauveltliner

Active

Vitis vinifera L. · Common grape vine

HÖHERE BUNDESLEHRANSTALT UND BUNDESAMT FÜR WEIN UND OBSTBAU

1 record

Einset seedless

Active

Vitis L. · Grapevine

CORNELL UNIVERSITY (US)

1 record

Druzhba

Active

Vitis vinifera L. · Common grape vine

Yordan K. Ivanov, Vasil Y. Valchev, Georgi S. Petkov, Boris A. Muzyichenko (RU), Arif M. Aliev (RU), Ivan A. Kostrikin (RU)

2 records

Djudje

Terminated

Lens culinaris Medik. · Lentil

M. Mihov, A. Mehandzhiev, M. Stoyanova

1 record

Divico

Withdrawn

Vitis L. · Grapevine

Agroscope, CH

1 record

Dresdner

Terminated

Pelargonium peltatum (L.) L'Hér. · Ivy-leaf geranium

Hofmann Christa

1 record

DOVGA

Active

Vitis vinifera L. · Common grape vine

Gunvaldis Ilgvars Vesmins

2 records

Darelia

Terminated

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

SC Darbonne (FR)

1 record

Cudivarta

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

1 record

Dame noire

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

1 record

Couston

Active

Vitis vinifera L. · Common grape vine

FONTAINE-TRANCHANT Maurice (FR)

1 record

Cruchen

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

1 record

Delgrosse

Terminated

Rubus idaeus L. · Red raspberry

Pepinieres et Roseraies Georges Delbard| FR

1 record

De couston

Active

Vitis vinifera L. · Common grape vine

FONTAINE-TRANCHANT Maurice (FR)

1 record

Datal

Active

Vitis vinifera L. · Common grape vine

INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR

1 record

Counoise

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

1 record

Danuta

Active

Vitis vinifera L. · Common grape vine

INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR

2 records

DANLAS

Protection expired

Vitis L. · Grapevine

INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR

1 record

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Diseases

Powdery mildew 33 570
Fusarium wilt and blight 29 887
Viral mosaic diseases 22 022
Downy mildew 16 384
Leaf spot diseases 15 926
Rust 14 859
Verticillium wilt 12 175
Scab 12 064

All terms →

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.