Mountain Pine Beetle Spraying Begins June 3, Hitting Several Locations in the Missoula Ranger DistrictMountain Pine Beetle Spraying Begins June 3, Hitting Several Locations in the Missoula Ranger DistrictMountain Pine Beetles have killed thousands of trees across the Missoula Ranger District and the planned spraying is finally set for June 3.Sarah YovetichSarah Yovetich