Emerald Ash Borer Found in Whitewater; Jefferson County Placed Under Quarantine Contact:     Donna Gilson, 608-224-5130, donna.gilson@wi.gov                  Jim Dick, Communications Director, 608-224-5020, jim.dick@wi.gov MADISON – Jefferson County will be quarantined for emerald ash borer, after the tree-killing insects were found just on the other side of its border with Walworth […]