DNR advises caution to prevent spread of oak wilt disease
For most people, April 15 is the annual tax-filing deadline. For people like Roger Mech – and other forest health professionals – April 15 also marks the beginning of the yearly window when oak wilt can be transmitted from diseased to healthy red oak trees.
According to Mech, forest health specialist for the Michigan Department of Natural Resources Forest Resources Division, oak wilt is a serious disease of oak trees. It mainly affects red oaks, including northern red oak, black oak and pin oak. Red oaks often die within a few weeks after becoming infected. White oaks are more resistant; therefore, the disease progresses more slowly.
“The normal time-tested advice is to prevent oak wilt by not pruning or otherwise ‘injuring’ oaks from April 15 to July 15,” Mech said. Read more