Oak wilt is a vascular disease caused by a fungus that spreads locally from infected trees to nearby healthy trees. Primarily transmitted through root grafts, it causes sudden wilting (especially in the red oak group), early leaf drop, discolored leaves, and sometimes, vascular streaking in the sapwood.
The spotted lanternfly is an invasive insect species native to Asia. This insect’s eggs are laid in masses about 1” long and may look like patches of crusted mud. Hatched nymphs are black with white dots. Adults are about 1” long with gray forewings that have black spots. Hindwings are a vivid rose red color with black tips and a white band running down the center. They have black legs and heads and yellow and black abdomens.
Vascular wilt diseases are caused by different fungi that attack the vascular (water-conducting) system of trees. A tree responds by blocking its vascular system to contain the disease. In doing so, the water supply to the leaves is cut off. Common vascular wilt diseases include Maple wilt and Oak wilt.