Curvularia spicifera
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Curvularia spicifera (Bainier) Boedijn 1933
The fungus is widespread in tropical and subtropical regions and causes mainly foliar diseases like leaf spot, leaf blotch or blight on a large variety of crops. It can also cause root rot like foot rot on wheat. Further it is a human pathogen. Cereals and grasses are most frequently infected and it is often detected in seed batches of sorghum, wheat and barley. It can persist on seeds and in the soil and survives as a saprophyte on plant debris. The spores disperse through the air and by rain splashes. In general, the fungus is regarded as a weak pathogen and significant yield losses are rare.
The conidia are elongated to elliptical, light brown and approximately 20-30 x 10 µm large, usually with 2-3 septa. In the sexual stage, ascomata are approximately spherical and about 700 µm large. Ascospores are thread-like, 6-16-septate and about 135-240 × 4-7 µm in size.
| Vernacular names | |
|---|---|
| • Deutsch: | Schwarzfleckigkeit des Chilis |
| • English: | foot rot of wheat black spot of chilli |
Synonyms:
Bipolaris spicifera
Cochliobolus spicifer
Drechslera tetramera
Drechslera spicifera
Helminthosporium spiciferum
Helminthosporium tetramera
