Survey crews are training for a time when the emerald ash borer finds its way to South Dakota trees. The exotic insect feeds on black, green or white ash. The trees have no defense against the beetle. State, local, and federal agencies are collaborating on a practice exercise in Sioux Falls.
State forester Gregory Josten says to claim South Dakota has escaped the emerald ash borer so far isn’t necessarily true.
"We don’t know for sure that it’s not here, but we have not found it here yet," Josten says.