Benefits of Ohia

Covering more than 800,000 acres across the State of Hawaiʻi, ʻōhiʻa forests are critical for recharging our island aquifers and storing carbon.  

ROD Decontamination Video

1. Brush/Scrape all dirt or mud off of shoes. 2. Spray to coat the bottom of your shoes with 70% rubbing alcohol. Prevent spreading Rapid ʻŌhiʻa Death by following these simple steps before and after visiting forests. Click here to watch a quick video on sanitation.

ROD Strategic Response Plan 2020-2024

The Rapid ʻŌhiʻa Death Working Group, led by the Department of Land & Natural Resources, Division of Forestry and Wildlife among others, has released its second strategic response plan covering work to address ROD from 2020 to 2024. 

Saving Ohia Documentary

Saving ʻŌhiʻa -Hawaiʻi's Sacred Tree has won 3 Emmy Awards! Check out this film capturing the story of Hawaiʻi's battle to save ʻōhiʻa from the threat of Rapid ʻŌhiʻa Death disease. 

Saving Ohia Documentary
A Newly identified disease

A newly identified disease has killed hundreds of thousands of mature ʻōhiʻa trees (Metrosideros polymorpha) on Hawaiʻi Island. This disease known as Rapid ʻŌhiʻa Death has also been detected on Kauaʻi and minimally on Maui and Oʻahu. (Photo by JB Friday)

Crowns of affected trees

Crowns of affected trees turn yellowish (chlorotic) and then brown within days to weeks. (Photo by JB Friday)

Ceratocystis fungus

Ceratocystis fungus appears as dark, radial staining in the sapwood, sometimes accompanied by reddish reaction wood in the heartwood of the tree. (Photo by JB Friday)

Don't spread ROD: Don't moveʻōhiʻa

Don't spread ROD: Don't move ʻōhiʻa, clean your tools, your gear, your vehicle. (Photo by JB Friday)


ʻŌhiʻa (Metrosideros polymorpha), the most abundant native tree in the state of Hawaiʻi, are dying from a fungal disease referred to as “Rapid ʻŌhiʻa Death.” ROD has been found on Hawaiʻi Island, Kauaʻi, Maui, and Oʻahu. ROD is comprised of two pathogens, Ceratocystis lukuohia and Ceratocystis huliohia. C. huliohia is less aggressive and has been found on each of the four islands. C. lukuohia is highly aggressive and has been identified on Hawaiʻi Island and Kauaʻi. Hundreds of thousands of ʻōhiʻa have died from this fungus on Hawaiʻi Island alone. Find out how you can help.







Hawaiʻi Island






Updated June 2020


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.




Join Hawaiʻi's residents and visitors who help to prevent spreading ROD by practicing these 5 things:

1. Avoid injuring ʻōhiʻa.  

2. Don’t move ʻōhiʻa wood or ʻōhiʻa parts.

3. Don’t transport ʻōhiʻa inter-island.

4. Clean gear and tools, including shoes and clothes, before and after entering forests.

5. Wash the tires and undercarriage of your vehicle to remove all soil or mud.



Due to the unprecedented situation with COVID-19, the USDA diagnostic lab in Hilo is still closed for public testing of wood samples. Samples can be kept in a cool location for storage, such as a refrigerator. We will provide an update once testing has resumed. Mahalo for your understanding.



Our August 2020 ROD Quarterly Newsletter issue is out! Read up on the latest news and access other issues HERE.




Save the Date for our 2020

VirtualʻŌhiʻa Love Festival!

This year we are hosting our 4th annual ‘Ōhi‘a Love Festival in November. This week-long festival will include workshops, videos, hula, music, art, storytelling, and the ROD documentary. If you would like to volunteer please contact ohialove@hawaii.edu.

‘Ōhi‘a Love Fest Poster_2020_SaveTheDate.jpg



The April/May issue of Hawaiian Airlines' Hana Hou magazine features Dr. Ryan Perroy of the University of Hawaiʻi at Hilo and his team for winning the ʻŌhiʻa Challenge, a $70,000 prize for developing a tool to help managers and researchers track ROD within trees and across the landscape. 



The Rapid ʻŌhiʻa Death Working Group has released a Strategic Response Plan for 2020-2024

Click on the image below to download the full plan



Looking for videos about Rapid ʻŌhiʻa Death updates?

Check out these links provided by our partners at the Hawaii State Department of Land & Natural Resources













This website and the Rapid ʻŌhiʻa Death extension program partially funded by the
USDA National Institute of Food and Agriculture (NIFA) through the Renewable Resources Extension Act and the Smith-Lever Act