Oak Disorder: Twolined Chestnut Borer
Author(s) C. F. Koval, M. F. Heimann
Oak trees that are dying from the top down or exhibiting drought-like symptoms may be infested with the twolined chestnut borer. Thousands of red, black, white, and bur oaks have been killed or damaged by this insect, Agrilus bilineatus (Weber), in Wisconsin. Read this fact sheet to find out how to spot, prevent, and control this oak disorder in your garden or landscape (4 pages).