Rapid ʻŌhiʻa Death disease has been found on the Islands of Hawaiʻi, Kauaʻi, Maui, and Oʻahu. Both Hawaiʻi Island and Kauaʻi have confirmed Ceratocystis lukuohia (destroyer of ʻōhiʻa) and Ceratocystis huliohia (disruptor of ʻōhiʻa), the two fungal pathogens causing ROD. While C. lukuohia is a more aggressive fungus than C. huliohia, either species will kill ʻōhiʻa. In July 2019, a single tree infected by C. huliohia was detected on Maui and 5 trees was also detected with C. huliohia on Oʻahu. The tree on Maui was destroyed and there have been no positive ROD detections since.