In this article from Angie's List, Kevin Sheehan, district manager of Davey's Long Island office, tells homeowners the steps to properly pruning their trees.
Posted: August 25, 2015
Pruning is essential to a tree’s health, but it’s not as easy as it looks. An improper pruning cut can rip the bark or injure the trunk of the tree. To be sure you are improving the health of your tree instead of causing more damage, follow the steps below.
First, make an undercut about a foot or so away from the trunk.
Follow the undercut by a top cut slightly closer to the main stem.