Aug 1, 2017

Oak Wilt Disease

Oak Wilt is a deadly disease that affects the oak species of our area. A tree infected with oak wilt in the spring will rapidly begin dropping its leaves in July and August. This almost-always fatal disease (if left untreated) is caused by a fungus that spreads through an infected tree's water conducting system causing the tree to wilt and die. In our area Oak Wilt is still uncommon, yet is spreading northward through Wisconsin and westward from counties in the southcentral UP. This summer Oak Wilt was reported for the first time in Plum Lake Township near Sayner in Vilas County, WI. The best way to manage this disease is through prevention, but some control options are available. We can help with information and advice: email us at