Oak Wilt and Apple Scab: How to Identify and Treat Common Grand Rapids Tree Illnesses
Key Takeaways Oak wilt kills red oaks in Grand Rapids within 4 to 6 weeks of visible symptoms and spreads through underground root grafts and sap-feeding beetles. Never prune oaks between April 15 and July 15 in Michigan, the highest-risk window for oak wilt transmission. Apple scab defoliates crabapples and apples by midsummer in wet […]
