National Park

Rapid ʻŌhiʻa Death

Rapid ʻŌhiʻa Death (ROD) is a fungal disease affecting native ʻōhiʻa trees in Hawaii. Here are some key things to know about it.

Rapid ʻŌhiʻa Death

Where is Rapid Ohia Death?

You can see the map of ROD here

How to prevent rapid ʻōhiʻa death?

Here are 5 things the public can do to help prevent the spread of Rapid ʻŌhiʻa Death:

  1. Be on the lookout and report any suspicious trees. If you see an ʻōhiʻa tree showing symptoms like wilting, discolored leaves or dead branches, take a photo and contact your local invasive species committee. Samples need to be collected and tested to confirm ROD.
  2. Don’t transport ʻōhiʻa between islands. Moving live plants, cuttings or wood from infected areas is how the disease can spread. Follow all regulations regarding interisland transport of ʻōhiʻa.
  3. Avoid injuring or cutting ʻōhiʻa trees. Wounds in the bark allow entry for the fungi and increase the risk of infection.
  4. Clean your gear thoroughly. Spores can hitchhike on shoes, clothes and equipment so clean thoroughly before entering uninfected forests.
  5. Wash vehicles thoroughly. Invasive pathogens frequently spread via transportation, so wash vehicles thoroughly, especially tires and undercarriage, after traveling off-road to remove any clinging dirt. Take extra care when shipping vehicles between islands.

If you want to visit Hakalau Forest National Wildlife Refuge, please contact them before you go.

The key message is for the public to be vigilant, avoid spreading infected materials or introducing risks for new infections, and report any potential sightings to help monitor and contain the disease.

Tag: Rapid Ohia Death

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