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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

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.

Sarom

Active

Fragaria L. · Strawberry

1 record

North Blue

Active

Vaccinium corymbosum L. · Highbush blueberry

1 record

NK Kondy

Terminated

Helianthus annuus L. · Sunflower

1 record

Senga Rigana

Active

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

1 record

TASTY FREE

Active

Prunus persica (L.) Batsch · Peach

1 record

Redos

Terminated

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

1 record

Olga

Terminated

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

1 record

Silvan

Active

Rubus L. · Blackberry

2 records

SENGA FRUCTANA

Active

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

1 record

PRI 9803

Active

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

1 record

Karaka Black

Active

Rubus idaeus L. x Rubus subg. Eubatus Focke

2 records

Red Gauntled

Active

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

1 record

Promiloy

Active

Rubus idaeus L. · Red raspberry

2 records

Granit

Active

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

1 record

Mysovka

Active

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

1 record

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