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.

Danery

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

1 record

DANAM

Terminated

Vitis L. · Grapevine

INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR

1 record

DARK LAPANA

Terminated

Chrysanthemum indicum L. · Indian chrysanthemum

Hoek Breeding BV (NL)

1 record

Chouchillon

Active

Vitis vinifera L. · Common grape vine

ARDVCG - MAIRIE DES TARTARAS (FR)

1 record

Constanze

Terminated

Vitis vinifera L. · Common grape vine

Gertrude Mayer ^^^Georg Weiss

1 record

Chasselas dorÃ©

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

1 record

Courbu

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

1 record

Centennial

Active

Tulipa L. · Tulip

Huijg Veredeling B.V.

1 record

Credo F1

Terminated

Cucumis melo L. · Melon

Angeles Maria

2 records

Corbeau

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

1 record

Chenin

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

1 record

Casablanca

Application submitted

Brassica napus L. · Rapeseed

DEUTSCHE SAATVEREDELUNG AG

1 record

Chenanson

Active

Vitis vinifera L. · Common grape vine

INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR

2 records

Columbia

Application submitted

Helianthus annuus L. · Sunflower

BORGES AGRICULTURAL & INDUSTRIAL EDIBLE OILS, S.A.U.

1 record

Colombaud

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

1 record

Clea

Active

Fragaria L. · Strawberry

ARCUTI P. / FAEDI WALTER / ROSATI PASQUALE

1 record

Claverie

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

1 record

Clarin

Active

Vitis vinifera L. · Common grape vine

INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR

2 records

Codivarta

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

1 record

Castets

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

1 record

Camaralet

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

1 record

Cabernet Cortis

Active

Vitis vinifera L. · Common grape vine

Dr. Norbert Becker im Staatl. Weinbauinstitut

2 records

Carcajolo

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

1 record

Cadeo

Withdrawn

Cucumis melo L. · Melon

Louis Poloni (FR)

1 record

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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

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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.