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The ‘Ōhiʻa Challenge offers a cash prize for a solution to the destructive ROD invasive fungi

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Dying Ohia Trees from Rapid Ohia Death (ROD). Photo courtesy of DLNR.

Dying Ohia Trees from Rapid Ohia Death (ROD). Photo courtesy of DLNR.

Hawaii National Park, HI – U.S. Department of the Interior offices and agencies are working in partnership with others on the ‘Ōhiʻa Challenge, named after a Hawaiian legend that tells of the love and separation of the young couple ʻŌhiʻa and Lehua; Jealous of their love, the goddess Pele turned the warrior ʻŌhiʻa into a tree and Lehua into the tree’s flower. If you pluck the red lehua blossoms of the ʻōhiʻa tree (Metrosideros polymorpha), legend says the lovers’ tears fill the sky with rain as they are separated again.

Today, the tears of many others are being shed over the future of the ʻōhiʻa tree because it is threatened by microscopic fungi that recently invaded the islands of Kaua‘i and Hawai‘i. These invasive fungi, Ceratocystis huliohia and Ceratocystis lukuohia, are responsible for the phenomenon named “Rapid ‘Ōhiʻa Death” or ROD. Since 2014 when first identified, the fungi have infected thousands of acres of forest and if unstopped, could irreversibly change Hawai‘i’s ecosystems and culture by eliminating the beloved ʻōhi‘a.

“When invasive species reach our shores, they care little for whether the lands are federal, state, local, or private,” says Scott J. Cameron, U.S. Department of the Interior Principal Deputy Assistant Secretary for Policy, Management, and Budget. “Cooperation and innovation are needed when confronting the issue of invasive species and the ʻŌhi‘a Challenge is a step forward in addressing that need. We must be good neighbors and seek ways to solve this problem together.”

NPS resource management employee fells a ROD infected ohia in the Kahuku Unit. NPS Photo

NPS resource management employee fells a ROD infected ohia in the Kahuku Unit. NPS Photo

Hawai‘i Volcanoes National Park, U.S. Department of the Interior Office of Native Hawaiian Relations, Hakalau Forest National Wildlife Refuge, and National Invasive Species Council (NISC) Secretariat are working in partnership with Conservation X Labs on this innovative challenge to address ROD by harnessing emerging science, technological innovations, and the ingenuity of people around the world. “We are incorporating industry innovation, best science, and best practices to improve environmental stewardship,” says Interior’s Susan Combs, Senior Advisor to the Secretary.

Conservation X Labs hosts the Digital Maker Space; a platform where science, entrepreneurship, and technology communities come together to start projects and co-create tech-enabled solutions to conservation problems.

On the ‘Ōhiʻa Challenge page, anyone can submit a project that provides solutions that identify infected trees early, minimize the spread, and eliminate the pathogens, with the goal of saving Hawai‘i’s iconic ‘ōhi‘a tree. According to Cindy Orlando, Superintendent for Hawai‘i Volcanoes National Park: “If ʻōhiʻa is lost, the countless native species that grow in the shade of the ʻōhiʻa will never be, the native birds that rest in the boughs of the ‘ōhi‘a and koa trees will have no roost, and rain that falls in Hawai‘i’s old growth forests will merely rush away, taking delicate island soils with it. Even the cycle of creation after a lava flow would be disrupted when there is no ʻōhiʻa to help bring life back to the land.”

Ohia growing at Hawaii Volcanoes National Park Kahuku Unit. Hawaii 247/7 File Photo

Ohia growing at Hawaii Volcanoes National Park Kahuku Unit. Hawaii 247/7 File Photo

The Department of the Interior has provided a seed purse for the challenge prize. Conservation X Labs is seeking additional sponsors and partners to increase the prize purse and promote the challenge among diverse solver communities. Most importantly, the challenge prize team is calling on the technology community to help solve the problem. “Our goal is to use the best of human ingenuity to identify technological solutions that can save part of Hawaiʻi’s beauty. This is why we look to engage innovative thinkers within other advanced technology fields through this challenge prize”, said Dr. Alex Dehgan, CEO of Conservation X Labs, “We don’t have to accept ʻōhiʻa’s extinction.”

The needs are known: identify trees that have been infected with the Ceratocystis huliohia and Ceratocystis lukuohia fungi before they die and prevent the spread of the fungi and the infection of new trees. The end goal is to develop a treatment for infected trees and ultimately eliminate the pathogen in Hawai‘i’s forests. While the needs and goals are clear, how we achieve them is not. “Someone somewhere out there has the vision and technological capacity to turn ‘we can’t’ into ʻwe can!’ This challenge prize will be awarded to that hero or team of heroes,” adds Dr. Jamie K. Reaser, Executive Director of NISC. Enter the ʻŌhiʻa Challenge — an opportunity to identify innovative tools and creative solutions to address ROD.

Interested in becoming part of the coalition to save the ‘ōhi‘a and protect Hawaiʻi’s natural heritage? Visit www.SavetheOhia.org to sign up for updates or express interest in partnering.

One Response to “The ‘Ōhiʻa Challenge offers a cash prize for a solution to the destructive ROD invasive fungi”

  1. Lisa Shock says:

    We used to live in northern Idaho, where we had a large patch of raspberries that suffered from root rot. We were told there was no cure and to take out the infected plants (amounting to all our plants) and leave the soil free of raspberries for at least 3 years, then introduce plants free of disease.

    Instead we cured the plants and they remained very healthy and free of disease for many years.

    We did this by means of biodynamic preparations and homeopathic remedies. These were applied to the soils and cured the problem. I believe a similar method could be used on the Ohia problem. However this would involve treating the soils, something that could only be done on a limited area. The cost of the preparations is modest, and can be produced locally for almost nothing, but the cost of labor to apply might be prohibitive for a large area.

    Another approach might be to simply look at the trace minerals that are lacking in our soils and apply them, as many trace minerals like copper are antifungal and could be enough to “cure the disease”. also our soils are low in silica which is also might lead to resistance if applied to the soils.

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