oak wilt

Oak Wilt Update From The Clinic

Oak wilt is a disease caused by the fungal organism Bretziella fagacearum. The disease can spread both underground and above ground. The disease is spread underground to healthy oaks through the root system of infected oak trees. Additionally, sap-sucking beetles can be attracted to the fungal mats that form under the bark of infected, dead oaks and can spread the disease above ground as they move to uninfected oaks.
Published on
Authors
Joy Pierzynski, PhD

Is It Oak Wilt, Or Not?

Oak wilt is a very serious and often deadly disease of oaks, specifically the oaks in the red or black oak group. The actual pathogen (Bretziella fagacearum) that causes the disease has been known to be in Ohio for many decades. Some years, it is worse than others. Oak wilt is not like the emerald ash borer that spreads rapidly, almost like a tidal wave moving in one direction. Oak wilt builds in a way that it can radiate out to other like trees, but advances at a slower pace, but even then, can cause tree death in a single season, and often in a matter of weeks
Published on
Authors
Amy Stone