The City of Grande Prairie is reminding residents that the annual elm tree pruning ban is currently in effect across Alberta. Running from April 1 through September 30, this provincial restriction prohibits the pruning of all elm species to help prevent the spread of Dutch elm disease.
The disease is a serious fungal threat capable of killing mature trees. It is primarily spread by elm bark beetles, which are attracted to the scent of freshly cut or damaged elm wood. By avoiding pruning during the warmer months when these beetles are most active, residents help protect the province’s elm population, which currently stands as the largest disease-free group of American elms in the world.
The pruning ban is enforced under the Alberta Agricultural Pests Act, which classifies both the disease pathogens and the beetles that carry them as declared pests. Residents are encouraged to plan any necessary tree maintenance between October 1 and March 31, when the beetles are not active.
The city manages approximately 3,500 elm trees and conducts its own maintenance programs during the fall months. For questions or to report concerns regarding elm trees, residents can contact the city by dialing 311 or by using the online reporting tool. Further information on prevention is also available through STOPDED, a non-profit organization dedicated to managing the disease across the province.
