A deadly new oak-tree disease can be prevented by pruning them in the dormant season (if needed) instead of spring or summer.
The winter months are the ideal time to prune oak trees in Michigan if you don’t want to put them at high risk for oak wilt.
Specifically, you need to prune your oak tree from time to time, but you shouldn't pick up your sheers whenever the thought strikes. Instead, you need to wait until it's the best time to trim your oak ...