To help homeowners, arborists, and tree services identify and prevent the spread of oak wilt, a free educational presentation is being hosted by ReLeaf Michigan, a non-profit tree organization. Respected plant pathologist, Dr. David Roberts, Ph.D. at Michigan State University’s College of Agriculture and Natural Resources, will provide an overview of the disease and outline its biggest concerns, so homeowners can protect the long-term health and vitality of their trees.