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.

Mauzac

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

1 record

Malike F1

Terminated

Solanum lycopersicum L. · Tomato

Jean Clause Mercier

2 records

MASSON

Active

Solanum lycopersicum L. · Tomato

Katarzyna Grabka

1 record

Magdeleine noire

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

1 record

Magyar Rizling

Terminated

Vitis L. · Grapevine

Bakonyi Karoly / Bakonyi Laszlo / Kocsis Laszlo

1 record

Luminan

Active

Vitis L. · Grapevine

Institut National de la Recherche Agronomique (FR)/Bureau National Interprofessionnel du Cognac (FR)

1 record

Madeleine Salomon

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

1 record

Madeleine angevine

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

1 record

Mauzac rose

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

1 record

Maryna

Application submitted

Rubus L. subg. Rubus · Blackberry

Niwa Hodowla Roślin Jagodowych sp. z o.o.

2 records

Madeleine de Clermont

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

1 record

LOLLY

Withdrawn

Lilium L. · Lily

Antra Balode

1 record

Lora

Active

Vitis vinifera L. · Common grape vine

Stasieva Mariia Ivanivna, Yarmak IEvheniia Dmytrivna, Storozhuk Kateryna Moisiivna, Bankovska Mariia Hryhorivna, Dylyk Antonina Petrivna, Dokuchaieva IEvheniia Mykolaivna, Meleshko Larysa Fedorivna,

2 records

Loki

Withdrawn

Vicia faba L. var. equina St.-Amans · Horse bean

Norddeutsche Pflanzenzucht Hans-Georg Lembke KG

1 record

Malvasia Fina

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

1 record

Mariensteiner

Protection expired

Vitis vinifera L. · Common grape vine

LAND BAYERN WUERZBURG| Land Bayern, vertreten durch Bayerische Landesanstalt fuer Weinbau und Gartenbau - Abt. Weinbau und Oenologie -

2 records

Malling Jewel TJW

Terminated

Rubus idaeus L. · Red raspberry

Szkółka Jagoda Teresa i Jan Wyrobek

1 record

Loin de l'Oeil

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

1 record

LIVAL

Protection expired

Vitis L. · Grapevine

INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR

1 record

Macabeu

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

1 record

Liliorila

Active

Vitis vinifera L. · Common grape vine

INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR

2 records

LIEPAJAS DZINTARS

Active

Vitis vinifera L. · Common grape vine

Gunvaldis Ilgvars Vesmins

2 records

Magnafena

Terminated

Foeniculum vulgare Mill. · Fennel

CHRESTENSEN N.L.| N.L. Chrestensen Erfurter Samen- und Pflanzen- zucht GmbH

1 record

Len de l'El

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

1 record

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Diseases

Powdery mildew 33 570
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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.