This is a recording of a zoom meeting we had on March 10, in which Mike Stern presented information about why you can work on a tree at a particular time and ensure it will recover and thrive. It is based on the idea of managing the energy the tree has and creates as it grows in various ways at different times of the year.  Thinking in terms of energy management is a general way to answer many questions of the form, “Can I do this to my tree and when is the best time to do it?”.