Bark beetle problems continue to worsen on Northern Idaho forest lands, a university forester says.
Drought stress from several years ago has led to the increased pressure now, said Chris Schnepf, University of Idaho Extension forester in Coeur d’Alene, Idaho.
Western pine beetles, pine engraver beetles, fir engraver beetles and Douglas fir beetles all are more active this year, he said.
“All of these bark beetles are native insects, they’re always around at some endemic level,” he said. “But when you have stand conditions that favor them, they start to take off.”