Dying kauri trees

Image: Ministry of Primary Industries | ©


DOC is responsible for protecting kauri on public conservation land and other land it manages, including many of New Zealand’s most significant kauri forests.


About the disease

Kauri dieback can kill kauri of all ages. It’s a disease caused by a microscopic fungus-like organism, called Phytophthora agathidicida (PA). It lives in the soil and infects kauri roots, damaging the tissues that carry nutrients and water within the tree, effectively starving it to death.

There’s currently no proven cure or treatment and nearly all infected kauri die. The disease is easily spread through soil movements, eg when soil is carried on dirty footwear, animals, equipment and vehicles. We can save our kauri forests by containing the disease and stopping it spreading to other areas.

Kauri dieback is found in the upper North Island.

DOC is upgrading and closing tracks to manage kauri dieback. 

What you can do to stop the spread

  • Clean all soil off your footwear and other gear every time you enter or leave an area with native trees, and at every cleaning station.
  • Use disinfectant only after you've removed all the soil.
  • Stay on track and off kauri roots. A kauri’s roots can grow outwards 3 times as far as its branches.
  • Spread the word within your networks on how to stop kauri dieback.

Infected trees may not show it – never assume anywhere is free of kauri dieback. If you're in native bush in the upper North Island, it's likely you'll be near kauri.

Kauri dieback can be spread by just a pinhead of soil. But kauri will be saved – by people like you.

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