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Diseases

Leaf spots — sugar beet

Beta vulgaris Sugar Beet Group

The most destructive disease is cercospora leaf spot, caused by the fungus Cercospora beticola Sacc. Symptoms of ramularia leaf spot, phoma leaf spot, and bacterial infections can also appear on the leaves.

In the reference 31 varieties crop Sugar beet, where this is mentioned in the description.

The causative agent of cercospora leaf spot manifests as necrotic, circular spots 2–5 mm in diameter with an ash-gray center and a characteristic dark brown, reddish-brown, or purple margin. In humid weather, a velvety, grayish-white fungal sporulation layer forms on the surface of the spots. Severe infection causes yellowing and death of the leaves, which forces the plant to consume sugars from the root crop to form a new rosette, thereby reducing yield and sugar content.

The pathogen Cercospora beticola exhibits high genetic variability, with numerous races and pathotypes adapted to specific cultivation zones. Varietal resistance is provided by the NBS-LRR gene family; however, the development of fully immune hybrids is difficult. Other leaf spots differ in their morphology: ramularia leaf spot is characterized by the absence of a distinct margin and the presence of a silvery-gray coating, phoma leaf spot by pronounced zonation with black pycnidia, and bacterial leaf spot by the oily, translucent appearance of the spots.

General information about the subject — on the page Leaf spot diseases.

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.

Avia

Active

Beta vulgaris Sugar Beet Group · Sugar beet

STRUBE HERMANN| Dr. Hermann Strube

DE ES LT SE UA
7 records

Smart Djerba KWS

Active

Beta vulgaris Sugar Beet Group · Sugar beet

Monica Weber Dietrich Hauer Werner Beyer Maik Gertz

DE HR HU IT UA
8 records

Lisanna KWS

Active

Beta vulgaris Sugar Beet Group · Sugar beet

KWS SAAT SE & CO.KGAA

BE DE DK ES NL SE
7 records

Lorenza

Terminated

Beta vulgaris Sugar Beet Group · Sugar beet

KWS| KWS SAAT AG

BE DE ES FR LT
7 records

Lunella KWS

Active

Beta vulgaris Sugar Beet Group · Sugar beet

KWS SAAT SE & CO.KGAA

BE DE DK ES FR SE
8 records

Caprianna KWS

Active

Beta vulgaris Sugar Beet Group · Sugar beet

KWS SAAT SE & CO.KGAA

BE DE DK FR NL SE
7 records

Boomerang

Protection expired

Beta vulgaris Sugar Beet Group · Sugar beet

VANDERHAVE SUGAR BEET SEED

BE FR GR HR HU NL
8 records

Smart Attala KWS

Active

Beta vulgaris Sugar Beet Group · Sugar beet

KWS SAAT SE and CO KGAA

DE DK LT SE UA
8 records

Smart Perla KWS

Active

Beta vulgaris Sugar Beet Group · Sugar beet

KWS, D

HR HU IT PL UA
7 records

Michelangelo

Active

Beta vulgaris Sugar Beet Group · Sugar beet

Strube, D

HU IT PL UA
8 records

Smart Edytka KWS

Active

Beta vulgaris Sugar Beet Group · Sugar beet

KWS SAAT SE&Co.KGaA, D

DE HR HU PL
7 records

Leonarda

Terminated

Beta vulgaris Sugar Beet Group · Sugar beet

KWS SAAT SE and CO KGAA

BE DK LT PL UA
7 records

Daphna

Active

Beta vulgaris Sugar Beet Group · Sugar beet

KWS SAAT SE and CO KGAA

DE DK FR LT SE
7 records

Asketa

Active

Beta vulgaris Sugar Beet Group · Sugar beet

Ursula Eggesieker-Weissenborn

DE HR HU NL UA
8 records

Wapiti

Active

Beta vulgaris Sugar Beet Group · Sugar beet

Stefaan Horemans

HR HU LT UA
8 records

Vedeta

Active

Beta vulgaris Sugar Beet Group · Sugar beet

Syngenta Seeds

BE CZ FR NL
8 records

Leopard

Active

Beta vulgaris Sugar Beet Group · Sugar beet

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

DE FR PL UA
7 records

Angus

Active

Beta vulgaris Sugar Beet Group · Sugar beet

Dr. Niels H. Gram

DK FR SE UA
7 records

Smart Pepeta KWS

Active

Beta vulgaris Sugar Beet Group · Sugar beet

KWS, D

DE ES HR HU
6 records

Morgan

Active

Beta vulgaris Sugar Beet Group · Sugar beet

Strube D&S GMBH

DE DK LT SE
6 records

Predator

Active

Beta vulgaris Sugar Beet Group · Sugar beet

Stefaan Horemans

CZ HR HU UA
6 records

Malibu

Active

Beta vulgaris Sugar Beet Group · Sugar beet

Ursula Eggesieker-Weissenborn

CZ ES IT UA
6 records

Felicita

Protection expired

Beta vulgaris Sugar Beet Group · Sugar beet

KWS Saat AG, DE

BE CZ DE FR GR
6 records

Glorietta KWS

Active

Beta vulgaris Sugar Beet Group · Sugar beet

KWS SAAT SE & CO.KGAA

DK FR LT NL SE
6 records

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