New tools are being used in the battle to protect thousands of precious kauri trees in Auckland's Waitākere Ranges.
Parts of the Waitākere Ranges were closed to the public five years ago, with an estimated one in five trees infected with Kauri dieback.
While there's no cure to the disease, progress has been made with upgrades re-opening 50 kilometres of track.
Our reporter Louise Ternouth went to check it out.
