Disease: Daylily Rust Pathogen: Puccinia hemerocallidisHost: Hemerocallis spp. (Lilliaceae)
A daylily leaf infected by Puccinia hemerocallidis.
Daylily rust was found in 18 states of the United States in 2001 after its initial discovery in Georgia in 2000. Daylily rust is a typical rust disease. Its symptoms appear as orange-colored pustules. These pustules are filled with spores called urediniospores that are easily wind disseminated.
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