A group ridding the Wakatipu region of wilding conifers is calling on the Government to adopt a nationally co-ordinated approach to the problem.
More than a million hectares of New Zealand landscape is affected by feral introduced pine trees, which local councils, the Department of Conservation and volunteer groups try to control.
The Wakatipu Wilding Conifer Control Group's chief executive, Briana O'Brien, says the time is right for the Government to formulate a national strategy.
The Parliamentary Commissioner for the Environment, Jan Wright, says that would make it easier to fund eradication measures and allow control systems that are working to be rolled out across the country.
Wilding pine researcher Nick Ledgard says that in some areas control solutions are not working and that only the Government has the power to fix the problem.