Abstract
Abstract A description is provided for Ascochyta paspali . Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Paspalum dilatatum (dallis grass), (and P . floridanum var. glabratum ). DISEASE: Leaf blotch or streak of Paspalum spp. The visible symptoms are yellowish brown to grey lesions developing at the leaf tip and subsequently involving the entire leaf and sometimes the sheath. GEOGRAPHICAL DISTRIBUTION: Australasia (New Zealand); South America (Argentina) and North America (? USA). TRANSMISSION: The fungus occurs in Paspalum as an endophyte (Buchanan, 1984). The mycelium has been reported to grow systemically in xylem vessels of roots, leaves and inflorescences. Conidia are dispersed by rain splash and the fungus has been isolated from seeds. It has been suggested that the fungus might overwinter as mycelium within roots, crowns and infected seeds.
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