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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.

Blauer Silvaner

Active

Vitis vinifera L. · Common grape vine

Rebschle Steinmann

DE
2 records

Beskid

Active

Rubus idaeus L. · Red raspberry

Instytut Ogrodnictwa - Państwowy Instytut Badawczy

PL
3 records

Bilbo

Terminated

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

LOCHOW| Lochow-Petkus GmbH

DE
4 records

Aurea

Active

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

Berries Del Oeste S.L.

ES
2 records

Aurelius

Active

Vitis L. · Grapevine

Doc. Ing. Miloš Michlovský, CSc. (CZ)

CZ
3 records

Baco 22 A

Active

Vitis L. · Grapevine

INCONNU (FR)

FR
2 records

Arinarnoa

Active

Vitis vinifera L. · Common grape vine

INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR

FR
4 records

Baladin

Active

Begonia L. · Begonia

L.H.KOPPE

NL
2 records

Aromera

Active

Vitis vinifera L. · Common grape vine

InnoVitis GmbH

DE
2 records

Ancellotta

Active

Vitis vinifera L. · Common grape vine

Vivai Cooperative di Pardergnone

BG
2 records

Afrodite

Application submitted

Vitis vinifera L. · Common grape vine

Dimitar Babrikov, Venelin Roychev, Agricultural University - Plovdiv (BG)

BG
2 records

Agni

Active

Vitis L. · Grapevine

Doc. Ing. Miloš Michlovský, CSc. (CZ)

CZ
3 records

Alfreda

Active

Pisum sativum L. · Pea

GSN Semences SAS (FR)

FR
3 records

5455 Seibel

Active

Vitis L. · Grapevine

INCONNU (FR)

FR
2 records

Vulcain

Terminated

Vicia faba L. · Broad bean

Serasem S.A.S.

2 records

Zofiscale

Withdrawn

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

Syngenta Seeds B.V.

2 records

TOSFANCRIZ

Active

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

Floha V.O.F

2 records

Tnbruas

Active

Brunnera macrophylla (Adams) I. M. Johnst. · Siberian bugloss

Janet N. Egger

3 records

Tiara Milk White

Terminated

Dianthus caryophyllus L. · Carnation

Mr.Kazuhito Yamamoto, Mr. Ryusuke Seo, Mr, Yoshiaki Manabe and Mr. Kento Mori

2 records

TOSTB0047

Active

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

Floha V.O.F

2 records

Vidoc

Active

Vitis vinifera L. · Common grape vine

Bundesrepublik Deutschland vertreten durch Julius Kühn-Institut, Institut National de Recherche pour l'Agriculture l'Alimentation et l'Environnement (INRAE)

2 records

Temptation

Active

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

Nobuo Kanasashi

3 records

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