"The exception was mice, which remain on the main mountain but are no longer present in the northern and southern enclosures, some QEII blocks within the fence and the Tautari wetland enclosure," said Melissa.
Trustee Don Scarlet said the programme has been "delivering spectacular biodiversity change", as well as education programmes that were inspiring youth.
He described Sanctuary Mountain Maungatautari as "an amazing collaboration between community, iwi, landowners, councils and central government."
"It has more than 400 volunteers providing the equivalent hours of 10 full time staff each year," said Don.
In moving the motion to support awarding of the grant, councillor Stu Kneebone said the benefits of the project were being experienced beyond the maunga.
"The biodiversity benefits have been spilling over into surrounding areas in the Waipa district and inspiring other pest programmes, like Predator Free Cambridge which is currently experiencing big demand from locals for rat traps," said Stu.
Finance committee chair Jane Hennebry also praised the trust for its success and recognised it as a project of international ecological significance.
However, she said it was disappointing to see that funding from the Department of Conservation had dropped for such a nationally significant treasure.
"I believe this means the regional council and Waipa District Council have become a crutch for funding and therefore I cannot support the grant," said Jane.