Alternaria dianthi
FungiFamily: Pleosporaceae · Genus: Alternaria

Biodiversity Heritage Library · public_domain
About
Alternaria dianthi, sometimes known as carnation blight, is a fungal pathogen of the genus Dianthus. Alternaria dianthi infections begin as small circular or ovular spots on leaves and stems, which can be red, purple, brown, yellow or gray.
Summary from Wikipedia
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Growing details and traits for Alternaria dianthi in the Library.
No cultivars in the Library yet — the full profile above covers the species itself.