The leaves are down, winter is upon us, and that means it’s prime time for pruning oak trees, which can be infected by the oak wilt fungus if they’re pruned during the high-risk period mid ...

There is a high risk of infection by sap-feeding beetles through exposed wounds on oak trees from April 15 through July 15, but a low risk of infection through the remainder of the summer.

Ask the Master Gardener: Advice about preparing plants for winter, when to prune oak trees Helen Vanella, Master Gardeners of Greene County Special to the News-Leader 0:02 ...

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. Oak wilt is a fungal disease that can weaken white oaks and kill red ...