Symptoms: Foliar lesions are typically oval, 1-8 × 0.8-2.5 mm, with dark brown margins and pale tan to grey or white centers and dotted with rows of black conidiophore tufts. Lesions can form on stems.
Pathogen and disease characteristics: Conidiophores arise in clusters from small, brown, substomatal stromata. The hyaline, multiseptate conidia are almost filiform (approximately 91-136 × 4 µm), widest in the basal cell or in the first 2 to 3 cells.
Host range: Pearl millet.
Nomenclature discrepancies: Synonyms or similar pathogens:
Seed transmission: Not known to be transmitted by seed.
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Original posting: June 5, 1999.