Add Forest county to those affected by the tree-killing Oak wilt disease.
The DNR tested wood samples taken from two red oak trees in the town of Lincoln, just north of Lake Lucerne.
Oak wilt is common in the southern two-thirds of Wisconsin, but only within the past few years has it been found in the Northwoods. Forest was one of the last area counties without the disease. Iron county has not had a verifiable infestation.
Linda Williams is a DNR forest health specialist in Woodruff...