It will harm the oak, and still not prevent any disease.

Jul 13, Once a Live Oak tree reaches its mature stage, it only needs to be pruned every three to five years. For this kind of routine Oak tree trimming and pruning, the best time to prune is in the fall or winter.

The proper time to prune your oak tree is in the dead of winter.

However, there are cases when it’s better to go ahead and prune Oak trees, even during peak Oak Wilt season. Oak trees are best trimmed in the winter between November and March. Oak trees are dormant in winter and are less likely to be negatively affected by pruning when in winter dormancy. That being said, branches which are dead, damaged, or diseased should be Estimated Reading Time: 8 mins. Anytime between November 1 and March 31 is the best time to trim your oak trees. They are less vulnerable during this time to infestations or diseases that could rot them.

Rot in particular can ravage even the largest of trees, leaving them feeble, damaged, and at risk of potentially falling. Nov 23, Prune in summer or winter to prevent the contamination of your oak tree by the oak wilt fungus.

Prune the oak prudently- don’t overdo and take off more than 25 percent of the tree’s branches.

Oak trees are generally pruned to have a dominant central leader branch.

Enjoy a beautiful oak tree for many years to come! Contact San Antonio Tree Surgeons if you have any questions or if you would like to set up a bushnotch.barted Reading Time: 5 mins.