"We are grateful for the public's support and co-operation while the Tuahu Track is closed for six weeks."
Kauri dieback is caused by microscopic spores in the soil that infect kauri roots, stopping the flow of nutrients to the tree. Eventually the infected tree starves to death. The disease can be spread if someone walks through mud containing spores and carries the contaminated mud on their footwear to another kauri forest.
The range of work to mitigate the kauri dieback risk includes building boardwalks, improving drainage and installing geoweb. Geoweb has plastic, honeycomb-like cells which are filled with lightly compacted bark and gravel, allowing kauri roots to grow freely.
"Kauri is a taonga [sacred] species," Mr Milham said.