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When is the Best Time to Prune a Tree?
Want to prune an elm tree in Edmonton? As a general rule, the best time to prune a tree is when the tree is dormant. This is the period of time when the tree is leafless. In Edmonton, this ranges from October to the start of May. The reason for this is the tree has the lowest risk of experiencing shock from the pruning.
March is Elm Pruning Month Edmonton
Not many people know that Edmonton is one of the last places on earth you can go to see thousands of old-growth Elm trees. They exist in other places, but not this old and not this grand. These jewels of the city are protected largely in part by Edmonton’s strategies to avoid the spread of Dutch Elm Disease within its population of Elms. If you own an Elm there are some rules you need to know.
What are these black growths on my tree?
If you are wondering “why does my tree have these nasty black growths” and you live in or around Edmonton, you are probably experiencing black knot and you are not alone. This disease attacks Mayday and Schubert’s chokecherry trees. The black growths are the fungus taking hold of a branch. Each black knot growth on a tree can release millions of tiny spores that float through the air across the city and land on other trees.