Michigan's DNR confirms oak wilt spread in southwest Marquette County, urging prevention and management.
The Michigan DNR has confirmed oak wilt infections in southwest Marquette County, signaling the disease's spread in the Upper Peninsula. Caused by the fungus Bretziella fagacearum, oak wilt rapidly kills red oaks but white oaks are more resilient. The DNR emphasizes prevention, advising against cutting or pruning oak trees from April 15 to July 15 to limit beetle transmission. Proper management of infected trees is essential to control the outbreak.
September 12, 2024
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