Proceedings of the Symposium held in conjunction with the Annual Meeting of the Pacific Branch, Entomological Society of America. The objective of the meeting was to set in the record the status of research & development of semiochemicals for management of bark beetle-caused mortality in western North America. Despite the fact that some semiochemicals are being used in various bark beetle management scenarios in western North America there is need for additional research. Various semiochemical-based bark beetle management tactics such as spot baiting, trap-out, concentration & containment, anti-aggregation, & use of competing species are all under rigorous field testing.