Emphasis is placed on control by timely removal and utilization of merchantable infested material.
Research has indicated that control of one infested tree during the winter months may prevent 10 trees from becoming infested the following spring. When infestations occur in trees of merchantable size and are readily accessible, infested trees should be removed. To minimize the possibility of spreading beetle infestations, prompt processing of infested material at nearby mills is recommended. Slabs and infested bark should be destroyed by chipping or burning. Encourage the infested logs to be used first.