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.

Camino Real

Active

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

The Regents of the University of California

ES HU NL PL RO

30 records

Florida Elyana

Active

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

UNIVERSITY OF FLORIDA, GULF COAST RESEARCH STATION

ES NL UA

15 records

Sweet Ann

Active

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

Mr. Jimmy Bagdasarian, Lassen Canyon Nursery, Inc

14 records

FL 05-107

Active

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

UNIVERSITY OF FLORIDA, GULF COAST RESEARCH AND EDUCATION CENTER

14 records

Iniagrape-one

Active

Vitis vinifera L. · Common grape vine

UQUILLAS HERRERA, María Carolina

8 records

DEL'TASOL

Active

Helianthus annuus L. · Sunflower

Semences Cargill SA (FR)

AT BG FR IT RO

12 records

Loch Ness

Active

Rubus L. · Blackberry

Scottish Crop Research Institute, GB

DE FR NL

9 records

Winter Dawn

Active

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

UNIVERSITY OF FLORIDA, GULF COAST RESEARCH STATION

ES NL

9 records

FL 16 30 128

Active

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

Whitaker Vance M.

9 records

Hysun 238 IT

Active

Helianthus annuus L. · Sunflower

Roberto Reid

PT RO UA

8 records

KAY-008

Active

Lactuca sativa L. · Lettuce

KUBOTA ITSUKI

6 records

EB 8 46

Active

Vaccinium corymbosum L. · Highbush blueberry

Vincent Andrew David Mazzardis

6 records

Cal Depyel

Application submitted

Calibrachoa Cerv. · Calibrachoa

Robert Pierce c/o Goldsmith Seeds, Inc.

5 records

Muller Thurgau

Active

Vitis vinifera L. · Common grape vine

Bezotosna Mar'iana Ihorivna

DE FR SK UA

4 records

Hysun 280

Active

Helianthus annuus L. · Sunflower

Roberto Reid V'iacheslav Baranenko

RO UA

6 records

Autumn Blush

Active

Coreopsis L. · Tickseed

TERRA NOVA NURSERIES INC

4 records

EB 8 46

Active

Vaccinium L. · Bilberry

Vincent David Andrew Mazzardis

6 records

Altasun 452

Active

Helianthus annuus L. · Sunflower

Advanta Seeds International

IT PT

4 records

Endurance

Active

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

Steven D. Nelson^^^Michael D. Nelson^^^SCHMIDA DANIEL T.

ES NL PL RO SI

23 records

Scholtec

Active

Rosa L. · Rose

Schreurs, P.

16 records

Megaton

Active

Brassica oleracea L. (White Cabbage Group) · White cabbage

Bejo Zaden B.V. (NL)

BG CZ HU LT NL PL +2

15 records

Camarosa

Active

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

University of California

ES FR NL PL PT

25 records

Camarosa

Active

Fragaria L. · Strawberry

Voth, Victor|Santa Ana, CA / Shaw, Douglas V.|Davis, CA / Bringhurst, Royce S.|Davis, CA

BG HU IT

13 records

SY Bacardi CLP

Active

Helianthus annuus L. · Sunflower

SYNGENTA FRANCE S.A.S.

AT FR HU PT SK UA

14 records

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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.