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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

Found in these crops

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.

Reberger

Active

Vitis vinifera L. · Common grape vine

Dr. Rudolf Eibach / Prof. Dr. Reinhard Töpfer

DE
2 records

Vitis vinifera L. · Common grape vine

Hochschule Geisenheim Institut fuer Rebenzuechtung

DE
2 records

Refren ISK

Withdrawn

Vitis L. · Grapevine

Instytut Sadownictwa i Kwiaciarstwa im. Szczepana Pieniążka

PL
1 record

Red Beauty

Terminated

Calluna vulgaris (L.) Hull · Common heather

MAASSEN| Franz Maassen / CANDERS| Gerd Canders

DE
2 records

Prior

Active

Vitis vinifera L. · Common grape vine

Dr. Norbert Becker im Staatl. Weinbauinstitut

DE
2 records

Poulsard

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR
1 record

Pougnet

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR
1 record

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR
1 record

Prista

Active

Vitis vinifera L. · Common grape vine

Zdravko Zankov, Ivan Todorov, Dimitar Mitev

BG
1 record

Vitis vinifera L. · Common grape vine

Prof. Dr. H. Becker

DE
2 records

Primera

Terminated

Vitis vinifera L. · Common grape vine

Prof. Dr. H. Becker

DE
2 records

PORTOS

Terminated

Solanum lycopersicum L. · Tomato

Seminis Vegetable Seeds

ES
1 record

Vitis vinifera L. · Common grape vine

Yordan K. Ivanov, Vasil Y. Valchev, Georgi S. Petkov

BG
1 record

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR
1 record

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR
1 record

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR
1 record

Plantet

Active

Vitis L. · Grapevine

INCONNU (FR)

FR
1 record

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR
1 record

Picardan

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR
1 record

Pinore

Active

Vitis L. · Grapevine

Stanislav Vršič

SI
1 record

Vitis vinifera L. · Common grape vine

DUMA MIHAIILLE IONATANOANA MARIADUMA TIBERIUDUMA MARINVANC FILIPLUCA MIRELAPOPI MORODAN CORNELIU

RO
1 record

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