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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.

Bіanka

Active

Vitis vinifera L. · Common grape vine

Chizmaziia Dorab Iozef

UA
1 record

Cabernet Carol

Active

Vitis vinifera L. · Common grape vine

Dr. Norbert Becker im Staatl. Weinbauinstitut

DE
2 records

Charmant

Terminated

Dianthus caryophyllus L. · Carnation

Nicoletta Baratta

NL
1 record

Brun Fourca

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR
1 record

Calys

Active

Vitis L. · Grapevine

INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR

FR
1 record

Brustianu B

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR
1 record

Chasselas doré

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR
1 record

Brestovitsa

Active

Vitis vinifera L. subsp. vinifera · Wine grape

Yordan K. Ivanov, Vasil Y. Valchev, Kunyu D. Stoev, Zdravko D. Zankov

BG
2 records

Brilliant F1

Terminated

Solanum lycopersicum L. · Tomato

Hari Besels

UA
1 record

Brun argenté

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR
1 record

Cabernet Cubin

Active

Vitis vinifera L. · Common grape vine

Dr. Bernd H.E. Hill c/o Staatl. Lehr-u.VA für Wein und Obstbau, Ref. Rebenzüchtung

DE
2 records

Cabernet Carbon

Terminated

Vitis vinifera L. · Common grape vine

Dr. Norbert Becker im Staatl. Weinbauinstitut

DE
2 records

Bouchalès

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR
1 record

Breidecker

Terminated

Vitis vinifera L. · Common grape vine

LAND HESSEN GEISENHEIM| Land Hessen, vertreten durch FA f. Wein- und Gartenbau, Ge- traenketechnologie u.Landespflege-Fachgb. f.Rebenzuech.u.-veredl.-

DE
1 record

Braquet

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR
1 record

Bogatka Niwa

Application submitted

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

Niwa Hodowla Roślin Jagodowych sp. z o.o.

PL
2 records

Bouteillan

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR
1 record

Bolero

Active

Vitis vinifera L. · Common grape vine

Hochschule Geisenheim University Institut für Pflanzenzüchtung Herrn Prof. Dr. Ernst Rühl

DE
2 records

Bogota MAR

Terminated

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

Szkółka Markiewicz Agnieszka Markiewicz-Januszewska

PL
1 record

Cabertin

Active

Vitis vinifera L. · Common grape vine

Valentin Blattner-Haefeli und Frau Silvia

DE
2 records

Cabernet Mitos

Active

Vitis vinifera L. · Common grape vine

Dr. Helmut Schleip (+) in Staatliche Lehr- und Versuchs- anstalt für Wein- und Obstbau

DE
2 records

Burdin 7705

Active

Vitis L. · Grapevine

INCONNU (FR)

FR
1 record

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