But these remarkable trees are at risk from Rapid Ohia Death, a disease that kills ohia trees. ROD has killed over one million ohia across Hawaii island. Diseased trees have been found on Kauai ...

Ceratocystis lukuohia and Ceratocystis huliohia are fungal pathogens that cause the disease called rapid ohia death, or ROD, so named because the trees appear to die within days or weeks.