Once the tree is 2 to 5 years old, prune it to improve canopy shape, structure and health. Never remove more than 25 percent of the tree canopy when pruning. Begin by removing any dead, diseased ...

Randy L. Rasmussen/The Oregonian The Burrell elm on Southwest 10th Avenue was Portland's first Heritage Tree. Elm tree owners take note: No pruning will be allowed after Wednesday. The annual ...

Pruning is a science, but it doesn’t have to be intimidating. Just follow these easy guidelines. Elizabeth Exstrom: Pruning trees correctly involves the right tools and some planning ...

Saskatchewan’s annual pruning ban on elm trees begins on April 1st and will run until Aug. 31. This provincial ban happens each year to try and slow the spread of Dutch elm disease , which is ...