Late winter/early spring, while the trees are still dormant, is the best time to prune...so our timing was just right. Pruning wounds will be able to heal faster when the tree is beginning to grow for the season. Attention to pruning affects both the tree's productivity and longevity. Of course, any time there's diseased, dead, or dying wood, it should and can be removed.
We also got a mini lesson on pruning high bush blueberries. We'll be finishing up this job in the coming weeks.
Dr. B stated that interested parties should view the material on pruning that is available on the University of Maine Cooperative Extension website. The Extension also has a free, monthly electronic newsletter for home gardeners called "Maine Home Garden News." Here's the link for subscribing:
http://umaine.edu/gardening/maine-home-garden-news/.