The safe period to prune oak trees is over, according to the Minnesota Department of Natural Resources. With recent warm temperatures, oaks are now at high risk of becoming infected with oak wilt.

To help prevent tree loss caused by oak wilt disease, Minnesota homeowners and forest landowners should avoid pruning or wounding oak trees from now through early summer. Spring weather promotes ...

MICHIGAN (WNEM) - The Michigan Department of Natural Resources (DNR) is asking the public to prune ... in the red oak family, including black oak, northern red oak, and northern pin oak.

“The best time to prune oak trees would be as they have gone ... Iowa’s red, black, and pin oak trees are more susceptible to ...