a u shaped tree crotch or joint
Photo: Karen Bussolini
A U-shaped crotch, or joint, with a well-defined branch collar indicates strong attachment. The thick bark ring envelops the branch where it is attached to the trunk.
To make conscientious pruning cuts, the first step is to simply walk around a tree and study it until you can pinpoint the problems. Here are some good, and not-so-good, things to look for—and one common pruning mistake to avoid.
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