Oak Wilt in the Dallas Area Oak Wilt is considered one of the most destructive tree diseases in the United States. Over 10,000 trees have already died of oak wilt in the Austin area alone. This disease affects live oaks and red oaks (a group of several oaks) in our state but not oaks in the white oak family. As we have increased in our knowledge of this disease, we have become much more aware of its presence in the Dallas area. The map below shows the locations of all the known and confirmed oak wilt centers in the immediate Dallas area. There are certainly other “spots” that have not been reported yet and when they are confirmed, we will add them to the map. -Courtney Blevins, Texas Forest Service October 1997