As part of World Environment Week, various groups such as Central Otago Reap, Enviroschools, Keep Alexandra Clyde Beautiful, MAD4CO and the Department of Conservation are declaring war on the trees they consider pests.
Along with other volunteers, they will be at the airport on Thursday with chainsaws, handsaws and shears to cut down some of the hundreds of wilding pines there, as well as briar and other weeds.
Central Otago Reap sustainable living programme co-ordinator Clair Higginson said although not all the trees at the airport would be cut down, they hoped to get rid of as many as possible.
The wood will be given to the group that runs the community garden in Dunstan Rd.
A forum on wilding pines, pest plants and landscape values in Central Otago will be held the night before at the Alexandra community centre.
It will include speakers such as Wakatipu Wilding Conifer Control Group chief executive Briana Pringle and artist Grahame Sydney, who both recently told the Central Otago District Council it needed to act or the trees would start to take over.
Ms Higginson said it was hoped the forum would see the formation of a group like the Wakatipu group that would lead the fight against the pines.
The council has set aside $10,000 in its long-term plan to develop a wilding pine strategy.
Other events planned for the week include planting native beech trees in Boundary Rd on Tuesday and a lunchtime lecture about the ecological ethics of relocating plants and animals on Friday.
