Submission

Alternaria dauci on Daucus carota

Credits / Owner: Céline Le Guisquet, GEVES
Submission date: 2025-07-29 20:30:06
Submission ID: #182

Alternaria dauci (ALTEDA) on Daucus carota. Perspective: top (image 1 of 2) — *Alternaria dauci* on *Daucus carota*
*Image credits: Céline Le Guisquet, GEVES*
perspective: top
(image 1 of 2)

Alternaria dauci (ALTEDA) on Daucus carota. Perspective: top (image 2 of 2) — *Alternaria dauci* on *Daucus carota*
*Image credits: Céline Le Guisquet, GEVES*
perspective: top
(image 2 of 2)

Symptoms of Carrot leaf blight / Alternaria dauci on Daucus carota

Pathogen

Scientific name	Alternaria dauci
Genus	Alternaria
EPPO code	ALTEDA
Common name	Carrot leaf blight
Synonyms	Alternaria carotae
Crop	Daucus carota

More about Alternaria dauci

Submission

Description

Mycelium of Alternaria dauci. Mycelium shape : aerial, wavy outline, septate. Mycelium color : green, dark grey in the centre, reddish-brown pigmentation. Conidia : Free, solitary, smooth, brown. Numerous transverse septa. Size: 26 - 135 x 1 - 29 μm. Size of apical filament: 72 - 182 μm. This long apical filament can branch. Typical symptoms induced by Alternaria dauci on carrot : For seeds : lack of emergence. Seedlings : small brownish spots with yellow halos on leaves, drying of cotyledons and stems.

Growth time:	7 days
Lighting:	Dark
Agar:	Malt Agar
Sample origin:	France