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Diseases

Rhizoctonia root rot — sugar beet

Beta vulgaris Sugar Beet Group

An economically significant disease of the sugar beet root system caused by the fungi Rhizoctonia solani and Rhizoctonia violacea. It manifests in the second half of the growing season as root rot and wilting of the aerial parts of the plant.

In the reference 88 varieties crop Sugar beet, where this is mentioned in the description.

The causative agent of the disease is the soil-borne fungus Rhizoctonia solani, as well as Rhizoctonia violacea, which is characterized by the Helicobasidium purpureum stage, causing so-called violet root rot. Symptoms of the infection usually become visible after row closure during warm weather and high humidity. In diseased plants, leaves yellow and wilt, often remaining attached to the crown as a brown rosette, while a black or brown dry rot forms on the surface and inside the root crops.

With violet root rot, gray depressed spots are observed on the root crops, covered with dark purple mycelium, on which red-violet sclerotia subsequently develop. The resistance of sugar beet to the pathogen is polygenic in nature and is defined as tolerance. No specific R-genes are identified in breeding programs, although modern DNA marker methods are used to evaluate breeding material.

General information about the subject — on the page Rhizoctonia.

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.

Isabella KWS

Active

Beta vulgaris Sugar Beet Group · Sugar beet

KWS SAAT SE and CO KGAA

BE DE DK ES FR NL +1
10 records

Lucata

Protection expired

Beta vulgaris Sugar Beet Group · Sugar beet

SYNGENTA SEEDS, A.B.

CZ DE DK ES FR NL +2
10 records

Laetitia

Terminated

Beta vulgaris Sugar Beet Group · Sugar beet

KWS Saat AG, DE

BE ES FR HR HU NL +1
9 records

Esperanza

Active

Beta vulgaris Sugar Beet Group · Sugar beet

KWS SAAT SE & CO.KGAA

CZ DE ES FR NL PL
9 records

Corvinia

Active

Beta vulgaris Sugar Beet Group · Sugar beet

KWS SAAT SE and CO KGAA

DE DK FR NL SE
8 records

Wawilow

Active

Beta vulgaris Sugar Beet Group · Sugar beet

Strube, D

CZ HR UA
8 records

Boomerang

Protection expired

Beta vulgaris Sugar Beet Group · Sugar beet

VANDERHAVE SUGAR BEET SEED

BE FR GR HR HU NL
8 records

Vedeta

Active

Beta vulgaris Sugar Beet Group · Sugar beet

Syngenta Seeds

BE CZ FR NL
8 records

Angus

Active

Beta vulgaris Sugar Beet Group · Sugar beet

Dr. Niels H. Gram

DK FR SE UA
7 records

Vivianna KWS

Active

Beta vulgaris Sugar Beet Group · Sugar beet

KWS SAAT SE & CO.KGAA

BE DE ES FR NL
6 records

Edda

Protection expired

Beta vulgaris Sugar Beet Group · Sugar beet

KWS| KWS SAAT AG

CZ DE FR NL
7 records

Calida

Terminated

Beta vulgaris Sugar Beet Group · Sugar beet

KWS SAAT SE and CO KGAA

DE ES FR NL
7 records

Belladonna KWS

Active

Beta vulgaris Sugar Beet Group · Sugar beet

KWS Saat AG, DE

DE DK FR NL
6 records

Volga

Active

Beta vulgaris Sugar Beet Group · Sugar beet

Syngenta Crop Protection AG, CH

FR IT UA
6 records

Armesa

Active

Beta vulgaris Sugar Beet Group · Sugar beet

Syngenta Crop Protection AG

DE LT UA
6 records

Modex

Active

Beta vulgaris Sugar Beet Group · Sugar beet

Maribo Seed International ApS, DK

BE GR HR PL
5 records

Rebecca KWS

Active

Beta vulgaris Sugar Beet Group · Sugar beet

KWS, D

HR HU IT
5 records

Santino

Terminated

Beta vulgaris Sugar Beet Group · Sugar beet

STRUBE GmbH&Co.KG, DE

DE FR HR HU
5 records

Smart Beppina KWS

Active

Beta vulgaris Sugar Beet Group · Sugar beet

KWS Saat SE, Einbeck DE

HR HU IT
5 records

Jadranka KWS

Terminated

Beta vulgaris Sugar Beet Group · Sugar beet

KWS, D

DE HR HU
5 records

BTS 2510 N

Terminated

Beta vulgaris Sugar Beet Group · Sugar beet

Betaseed Inc. (US)

BE DE FR NL
5 records

Korab

Active

Beta vulgaris Sugar Beet Group · Sugar beet

WIELKOPOLSKA HODOWLA BURAKA CUKROWEGO SP.Z.O.O

PL UA
5 records

Boa

Active

Beta vulgaris Sugar Beet Group · Sugar beet

SESVANDERHAVE NV-SA, BE

FR UA
6 records

Smart Liesa KWS

Active

Beta vulgaris Sugar Beet Group · Sugar beet

KWS SAAT SE & CO.KGAA

BE ES NL
4 records