Michigan DNR Advises Caution to Prevent Spread of Oak Wilt Disease
Michigan -(Ammoland.com)- 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.
Oak wilt mortality pocket According to Mech, forest health monitoring program manager 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.
He added that the spread of oak wilt occurs during this time of year as beetles move spores from fungal fruiting structures on the trees killed last year by oak wilt to wounds on healthy oaks. As warmer weather melts away snow …read more