UC Santa Cruz music professor David Dunn has joined forces with two forest scientists from Northern Arizona University to combat an insect infestation that is killing millions of trees throughout the West. They are applying the results of nearly a decade of acoustic research in an unconventional collaborative effort to stop bark beetles from tunneling through the living tissue of weakened, drought-stressed pine trees. The trio has now received a patent for a device that uses sound as a targeted sonic weapon to disrupt the feeding, communication, reproduction, and various other essential behaviors of the insects.