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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

Found in these crops

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.

Vitis vinifera L. · Common grape vine

ES FR MT
5 records

Diana

Active

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

ES FR NL
6 records

Rubus idaeus L. · Red raspberry

HU NL SI
9 records

Octavia

Active

Rubus idaeus L. · Red raspberry

NL UA
9 records

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

DE NL
8 records

Candiss

Active

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

FR NL
7 records

Fragaria L. · Strawberry

Reinhold von Sengbusch

CZ SK UA
6 records

Skladia kleine

Protection expired

Vicia faba L. var. minuta (hort. ex Alef.) Mansf. · Tick Bean

SAATZUCHTWIRTSCHAFT OTTO BREUSTEDT GMBH

DK FR SE
3 records

Grenache

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR MT UA
3 records

Furmint

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR SK UA
3 records

Vitis vinifera L. · Common grape vine

Land Baden-Württemberg, vertreten durch Staatliche Lehr- und Versuchs- anstalt für Wein- und Obstbau

BG DE SK
4 records

Brassica napus var. napus · Rapeseed

Limagrain Europe S.A.S

ES UA
4 records

Venus

Active

Vitis L. · Grapevine

Ing. Josef Veverka (CZ)

CZ HU
4 records

Valeria

Terminated

Vicia faba L. · Broad bean

Saatzucht Gleisdorf

AT
6 records

Tatuin

Active

Brassica oleracea L. (Cauliflower Group) · Cauliflower

Syngenta Crop Protection AG

NL UA
5 records

Sugraone

Active

Vitis vinifera L. · Common grape vine

Garabedian John M.

ES IT
3 records

Topgirl

Active

Capsicum annuum L. · Bell pepper

SPAETH HANS| Erbe/Erbengemeinschaft Dr. Hans Rolf Spaeth

CZ DE
4 records

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