OPT liaised with Perth's departments of Community Development and Environmental Services to permit OPT volunteers to cut out/remove invasive vines growing on trees and shrubs in the parks and along the streets. Invasive vines damage and kill trees by smothering their leaves and their weight can break the branches.

In the photo to left two OPT volunteers can be seen removing vines the size of ropes from one tree on town property.

Photo below shows two young Black Walnut trees whose lower branches were mangled by vines that were growing up the trunk. By what our group refers to as “freeing the trees”, we were able to save the upper branches from meeting the same fate. The trees would have died. At a time when more trees are needed, why not focus on keeping existing trees alive?