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Diseases

Powdery mildew — sugar beet

Beta vulgaris Sugar Beet Group

A fungal disease of sugar beet caused by the obligate parasite Erysiphe betae. It manifests as a white web-like coating on leaves, leading to yellowing, a 20–30% reduction in root yield, and a decrease in sugar content.

In the reference 186 varieties crop Sugar beet, where this is mentioned in the description.

The pathogen Erysiphe betae infects the above-ground parts of the plant, including leaves, stems, and seed balls. Symptoms are typically detected in June–July as a delicate white coating on both sides of the leaf blades, which eventually becomes denser and takes on a powdery appearance. In the second half of the growing season, the fungus develops fruit bodies known as cleistothecia on the coating, appearing as small brown or black dots.

The development of the pathogen is favored by dry, hot weather at temperatures between +20 and +30°C and sharp fluctuations in air humidity. In breeding for resistance to the pathogen, marker-assisted selection methods are used, focusing on the study of the NBS-LRR gene family and the analysis of single nucleotide polymorphisms in potential resistance genes such as PMR5.

General information about the subject — on the page Powdery mildew.

Sources8

Varieties of Sugar beet mentioned in the description

Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.

BTS 2045

Active

Beta vulgaris Sugar Beet Group · Sugar beet

Betaseed Inc. (US)

DE FR
4 records

Baikal

Active

Beta vulgaris Sugar Beet Group · Sugar beet

Maribo Seed International ApS, DK

FR GR HR HU NL PL +1
12 records

Impact

Active

Beta vulgaris Sugar Beet Group · Sugar beet

SESVANDERHAVENV

BE CZ ES FR GR HR +1
10 records

Ventura

Active

Beta vulgaris Sugar Beet Group · Sugar beet

Maribo Seed International ApS, DK

DE HR HU NL PL SI
9 records

Brigitta

Protection expired

Beta vulgaris Sugar Beet Group · Sugar beet

KWS SAAT SE & CO.KGAA

BE DE DK ES FR GR +2
10 records

Bravo

Active

Beta vulgaris Sugar Beet Group · Sugar beet

STRUBE HERMANN| Dr. Hermann Strube

DE FR LT PL UA
10 records

Xanthus

Active

Beta vulgaris Sugar Beet Group · Sugar beet

Maribo Seed International ApS

ES FR GR LT UA
8 records

Beta vulgaris Sugar Beet Group · Sugar beet

Strube GmbH Co.KG, Söllingen DE

BE CZ DE HU NL
8 records

Beta vulgaris Sugar Beet Group · Sugar beet

KWS SAAT SE and CO KGAA

BE DE DK ES LT SE
8 records

Lavina

Protection expired

Beta vulgaris Sugar Beet Group · Sugar beet

KWS SAAT SE & CO.KGAA

DE GR HR HU IT UA
8 records

Baccara

Active

Beta vulgaris Sugar Beet Group · Sugar beet

VANDERHAVE SUGAR BEET SEED

BE ES FR SE UA
11 records

Beta vulgaris Sugar Beet Group · Sugar beet

KWS, D

CZ ES HR LT
7 records

Beta vulgaris Sugar Beet Group · Sugar beet

KWS, D

HR HU IT PL UA
7 records

Beta vulgaris Sugar Beet Group · Sugar beet

Monica Weber Dietrich Hauer Werner Beyer Maik Gertz

DE HR HU IT UA
8 records

Beta vulgaris Sugar Beet Group · Sugar beet

KWS Saat SE, Einbeck DE

CZ DE HR HU IT UA
8 records

Beta vulgaris Sugar Beet Group · Sugar beet

KWS SAAT SE and CO KGAA

DE DK LT SE UA
8 records

Beta vulgaris Sugar Beet Group · Sugar beet

KWS SAAT SE & CO.KGAA

BE DE DK ES NL SE
7 records

Leopard

Active

Beta vulgaris Sugar Beet Group · Sugar beet

SESVANDERHAVE| SESVANDERHAVE N.V./S.A. Industriepark

DE FR PL UA
7 records

Figaro

Terminated

Beta vulgaris Sugar Beet Group · Sugar beet

Van der Have B.V.

ES FR LT NL PL
8 records

Daphna

Active

Beta vulgaris Sugar Beet Group · Sugar beet

KWS SAAT SE and CO KGAA

DE DK FR LT SE
7 records

Beta vulgaris Sugar Beet Group · Sugar beet

KWS SAAT SE & CO.KGAA

BE DE DK FR NL SE
7 records

Cameleon

Active

Beta vulgaris Sugar Beet Group · Sugar beet

SESVANDERHAVE, N.V./S.A.

DE DK ES FR NL UA
7 records

Avia

Active

Beta vulgaris Sugar Beet Group · Sugar beet

STRUBE HERMANN| Dr. Hermann Strube

DE ES LT SE UA
7 records

Angus

Active

Beta vulgaris Sugar Beet Group · Sugar beet

Dr. Niels H. Gram

DK FR SE UA
7 records