It is found throughout Latin America, including Costa Rica, Guatemala, Mexico, Colombia, and Brazil.
, commonly known as Ojo de gallo (Rooster's Eye) or American Leaf Spot , is a parasitic fungus responsible for one of the most destructive coffee diseases in Latin America. Unlike most Mycena species, which are harmless decomposers (saprobes), M. citricolor is a specialized plant pathogen. It primarily affects Coffea arabica , where it can cause yield losses ranging from 20% to 90% depending on environmental conditions. Key Characteristics & Biology Ojo de gallo Mycena citricolor
Both the lesions and the fungus itself are bioluminescent, giving infected spots a faint glow in dark or shaded environments. It is found throughout Latin America, including Costa