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.

GL Arabella

Active

Vicia faba L. · Broad bean

Saatzucht Gleisdorf

6 records

Figaro

Active

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

PLANT RESEARCH INTERNATIONAL B.V.

9 records

Earlibrite

Active

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

UNIVERS. OF FLORIDA

7 records

Credo

Active

Cucumis melo L. · Melon

Maria-Angeles Benedi

5 records

Brilla

Active

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

Walther Faedi^^^Gianluca Baruzzi^^^Pierluigi Lucchi^^^Paolo Sbrighi

5 records

Betulia Double Red

Terminated

Begonia x hiemalis Fotsch · Elatior Begonia

LUBBERTUS H.KOPPE

4 records

WEL20390

Active

Euphorbia pulcherrima Willd. ex Klotzsch · Poinsettia

Welzel Christian

4 records

SAKPXC024

Active

x Petchoa J. M. H. Shaw · Petchoa

TSUKAHARA JUN

5 records

Pacmar

Active

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

Michalik Andrea|Dresden, DE

4 records

Paclara

Active

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

Martin Geibel c/o Elsner pac Jungpflanzen GbR

4 records

Pacpilace

Active

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

Martin Geibel c/o Elsner pac Jungpflanzen GbR

4 records

Pacsamara

Active

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

Martin Geibel c/o Elsner pac Jungpflanzen GbR

4 records

Marroo Seedless

Active

Vitis L. · Grapevine

Commonwealth Scientific and Industrial Research Organisation

5 records

KORaroma03

Active

Rosa L. · Rose

WILHELM-ALEXANDER KORDES

5 records

Haegeum

Active

Actinidia chinensis Planch. · Kiwifruit

Younsup CHO, Hyesung CHO, Moonyoung PARK, Jaeok PARK, Kyungcheol MA, Byeongho KIM, Donggeun LIM, Guekpil BANG, Governor of Jeollanam-do

4 records

HIICE

Active

Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea

van Dijk Roy Robin

4 records

Grape Soda

Active

Heuchera L. · Coral Flower

Janet N. Egger

4 records

ESM R030

Active

Rosa L. · Rose

Hooijman Aloysius A. J.

4 records

Esm Pacarina

Active

Rosa L. · Rose

Hooijman Aloysius A. J.

4 records

CIVN260

Active

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

Leis Michelangelo, Martinelli Alessio

6 records

Drisstrawsixtyeight

Active

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

Omar Carrillo Mendoza, Maribel Martínez Negrete, Manuel López y Renae R. Robertson

5 records

Chili

Active

Lilium L. · Lily

Vletter en den Haan Beheer B.V.

4 records

Danfestar

Active

Gypsophila paniculata L. · Baby's-breath

Gavriel Danziger

4 records

Asmago

Active

Asteriscus maritimus (L.) Less.

Syngenta Seeds B.V.

4 records

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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.