Alternaria radicina
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Authors: J.H.C. Woudenberg, J.Z. Groenewald, M. Binder and P.W. Crous
Source: Studies in Mycology, 2013, 75, p. 203
Alternaria radicina (Meier) Drechsler & E. D. Eddy - (black rot of carrots)
This fungus is widely distributed on carrots and causes the black rot disease. Parsley and some other plants may also become infected. A high disease incidence of more than 50% has been reported from some carrot fields, leading to significant yield losses and/or abandoning of the fields. The disease is also very destructive in cold-storage. Infections often start by planting infected seeds. All parts of the plant can become infected, resulting in brown or black lesions.
The fungus spreads through seeds and asexual conidia, which are usually produced solitary on the conidiophores. Conidia are dark brown, beakless, with several transverse and longitudinal septa and around 20-50 x 15-20 µm large.
| Vernacular names | |
|---|---|
| • Deutsch: | Schwarzfäule der Möhre |
| • English: | black rot of carrots black leaf spot of parsley |
| • Français: | pourriture noire de la carotte |
Synonyms:
Stemphylium radicinum
- Other images of Alternaria radicina (PaDIL - click to enlarge)
symptoms on the base of the petioles
conidia
