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 Tick Bean 28 Horseshoe pelargonium 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.

Sirano

Active

Vitis vinifera L. · Common grape vine

Institut National de Recherche pour l'Agriculture l'Alimentation et l'Environnement (INRAE)

1 record

Rowena

Active

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

ABZ Aardbeien uit Zaad Holding B.V.

2 records

Rosemary Foster

Active

Hydrangea aspera Buch.-Ham. ex D. Don · Rough-leaved hydrangea

Maurice C. Foster

1 record

Rhododendron

Application submitted

Rhododendron catawbiense Michx. · catawba rhododendron

TYAS VERBRUGGE

1 record

Qualicum

Active

Rubus idaeus L. · Red raspberry

PACIFIC AGRI-FOOD RESEARCH CENTRE AGASSIZ

4 records

Pitstop

Terminated

Chrysanthemum L. · Chrysanthemum

Cleangro Ltd

1 record

Okura Red

Terminated

Chrysanthemum L. · Chrysanthemum

PARATY B.V.B.A

1 record

Night Star

Withdrawn

Dianthus L. · Carnation

H.R. WHETMAN & SON

1 record

PACPZ16081

Active

Pelargonium zonale (L.) L'Hér. · Horseshoe pelargonium

Martin Geibel

1 record

Mareva

Active

Prunus persica (L.) Batsch · Peach

PSB Producción Vegetal S.L

2 records

Lilaro

Active

Vitis vinifera L. · Common grape vine

Institut National de Recherche pour l'Agriculture l'Alimentation et l'Environnement (INRAE)

1 record

LABZ0002

Terminated

Lavandula stoechas L. · French lavender

Syngenta Crop Protection AG

1 record

Mailling Juno

Withdrawn

Rubus idaeus L. · Red raspberry

East Malling Research

1 record

Mieke Bral

Application submitted

Paeonia lactiflora Pall. · Chinese peony

Koen Hurtekant

2 records

Little Magic

Withdrawn

Ocimum basilicum L. · Basil

Udo Schäfer

1 record

Kerverblu

Withdrawn

Petunia Juss. · Petunia

David William Kerley^^^Timothy Edward Kerley^^^Priscilla Grace Kerley

1 record

Kerbeldawn

Terminated

Primula vulgaris Huds. · Primrose

Priscilla Grace Kerley^^^Timothy Edward Kerley^^^Sarah Elisabeth Kerley^^^David William Kerley

1 record

INLOBLXBLE

Terminated

Lobelia erinus L. · Edging lobelia

Birgit Hofmann

1 record

FAIR 10

Terminated

Lavandula stoechas L. · French lavender

ALINE FAIRWEATHER LTD

1 record

Glen Rosa

Active

Rubus idaeus L. · Red raspberry

SCOTTISH CROP RESEARCH INSTITUTE

4 records

Florida

Terminated

Lilium L. · Lily

Vletter & Den Haan Beheer B.V

1 record

Healthy Mammoth Two

Active

Sequoiadendron giganteum (Lindl.) J. Buchholz

Cornelius P.F. Kools trading as Sierteeltkwekerij Kools

1 record

Golden Carpet

Terminated

Spiraea L. · Spiraea

Huber Tony

1 record

ERFZ0008

Active

Erysimum linifolium (Pers.) J. Gay · Wallflower

Syngenta Crop Protection AG

1 record

1 2 ... 52 53 54 55 56 57 58 ... 101 102 Next

Jump to page 15 29 44 45 58 65 73 87

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.