Over Trimming Trees

Mother Nature’s Moment - September 2020
by: Lesley Bruce Smith, ISA Certified Arborist


Dr Alex Shigo, the father of modern arboriculture, once said: “Trimming your trees is one of the best things you can do for them, if you do it properly, and one of the worst things you can do, if you do it improperly.”

For a multitude of reasons we are seeing a huge number of trees that have been over trimmed or trimmed improperly. So what does that mean or what does it look like?

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Why Don’t Arborists Paint Cuts with Wound Dressing?

by: Board Certified Master Arborist, Gilbert A Smith
Backyard Wisdom - April/May 2020


Fifty years ago when I was a young “tree skinner” Yes, that’s what they called us and with good reason. I was taught to paint all of the cuts that I made with tree tar. That was the measure of a good job. My father would say, “I saw a lot of ‘white eyes’ in the trees you trimmed today.” What an insult! “White eyes” were the newly exposed round tree cuts that looked like eyes on the branches.

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How Do Trees Grow?

Mother Nature’s Moment, April 2019
by: Lesley Bruce Smith, ISA Certified Arborist

This last quarter we have taught several workshops that focus on tree trimming. Whenever we have a chance to get in front of people to talk about trees, we don’t miss the opportunity to talk about tree physiology. Now before you click to the next thing with a big yawn, give me a moment to share with you just how exciting this subject can be. Understanding tree physiology helps those of us that live and work with trees to know how to help them live the longest and healthiest lives possible. As an arborist of almost 40 years I can tell you that some of the most damaging practices done to and around trees are done because of the many misconceptions we have about them. Understanding a bit about how trees live and grow helps us to be good tree friends.

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