Sadly, thousand cankers disease has been confirmed in the Great Smoky Mountains National Park in Haywood County. This disease has been present in Tennessee since 2010 so it was only a matter of time. This disease is caused by a fungus carried by walnut twig beetles. It is native to the southwest US and Mexico where it feeds on a different walnut species. Infected trees die in just a few years. You can read more on the NCFS alert. There has been a quarantine on the movement of walnut into North Carolina from infested areas. Now there is an additional interior quarantine limiting movement of walnut wood out of Haywood Co. I will post more later on the biology and damage of this disease.