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Diseases

Carrot leaf blights

Daucus carota L.

A group of fungal diseases of carrots, caused mainly by Alternaria dauci and Cercospora carotae, leading to foliage damage and reduced root yield.

In the reference 48 varieties crop Carrot, where this is mentioned in the description.

The primary pathogens causing leaf blights are the fungi Alternaria dauci, which causes leaf blight, and Cercospora carotae, which causes cercospora leaf spot. When affected by Alternaria dauci, dark brown spots with a yellow halo appear on older leaves, leading to foliage dieback, whereas Cercospora carotae more frequently affects young tissues and manifests as circular spots with a light center.

Resistance of carrots to these pathogens is polygenic in nature and is described as tolerance or partial resistance. Specific monogenic sources have not been identified; therefore, breeding relies on quantitative traits (QTL) and the assessment of accessions on a scale ranging from susceptible to resistant. The division of pathogens into distinct races is not used in breeding practice due to the lack of a universally accepted classification.

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

Sources8

Varieties of Carrot 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.

Boléro

Active

Daucus carota L. · Carrot

Vilmorin, F

BG CZ FR HR HU PL +2
20 records

Allyance

Active

Daucus carota L. · Carrot

ROGER FREEMAN

NL UA
24 records

Brillyance

Active

Daucus carota L. · Carrot

Robert Oostveen

NL UA
19 records

Narbonne

Active

Daucus carota L. · Carrot

Bejo Zaden B.V.

BG CZ HU LT NL PL +2
12 records

Mokum

Active

Daucus carota L. · Carrot

Bejo Zaden BV, NL-1749 ZH Warmenhuizen

CZ HR HU LT NL SI +1
12 records

Natuna

Active

Daucus carota L. · Carrot

Ger Beemsterboer

NL UA
12 records

Soprano

Active

Daucus carota L. · Carrot

Vilomorin, F

FR HR
11 records

Berlin

Active

Daucus carota L. · Carrot

Ger Beemsterboer

NL UA
11 records

Jerada

Active

Daucus carota L. · Carrot

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL UA
10 records

Naval

Active

Daucus carota L. · Carrot

Ger Beemsterboer

HR NL UA
9 records

Samson

Active

Daucus carota L. · Carrot

Bejo Zaden, NL

CY HR NL
9 records

Dailyance

Active

Daucus carota L. · Carrot

Paul Degreef

NL UA
15 records

Kamaran

Active

Daucus carota L. · Carrot

Bejo Zaden (NL)

CZ HU NL SI SK
8 records

Fontana

Active

Daucus carota L. · Carrot

Bejo Zaden BV, NL-1749 ZH Warmenhuizen

BG HU LT NL PL SI
8 records

Negovia

Active

Daucus carota L. · Carrot

Bejo Zaden BV (NL)

HR NL SK
8 records

Bergen

Active

Daucus carota L. · Carrot

Bejo Zaden B.V.

CZ HU NL PL SI SK
7 records

Parano

Terminated

Daucus carota L. · Carrot

Nunhems BV (NL)

CZ HR NL PL SK
8 records

Baltimore

Active

Daucus carota L. · Carrot

Bejo Zaden B.V.

NL UA
9 records

Newhall

Active

Daucus carota L. · Carrot

Ger Beemsterboer

HR NL UA
8 records

Cadance

Active

Daucus carota L. · Carrot

Paul Degreef

NL UA
13 records

White Satin

Active

Daucus carota L. · Carrot

BEJO ZADEN

NL
6 records

Bolivar

Active

Daucus carota L. · Carrot

Robert Prieur

FR UA
7 records

Yellowstone

Active

Daucus carota L. · Carrot

Bejo Zaden BV (NL)

HR NL
6 records

Nairobi

Active

Daucus carota L. · Carrot

BEJO ZADEN

NL SI
6 records