Red oak borer, Enaphalodes rufulus Haldeman, (Coleoptera: Cerambycidae), a native beetle with adults emerging synchronously in odd numbered years, is endemic throughout hardwood forests of eastern North America. In the Arkansas Ozark National Forest, red oak borer populations have been recently described at epidemic levels. High red oak borer populations are contributing to oak mortality throughout the oak-hickory forests of Arkansas, Missouri, and Oklahoma. In Spring 2005, we isolated a male-produced pheromone from red oak borer adults that attracted females in laboratory bioassays. Few cerambycids have been shown to utilize long-range pheromones to locate mates; generally, cerambycids are thought to rely on mutual attraction to cues from their hosts. Males of other species within the cerambycinae subfamily have been reported to possess aggregation pheromones. Pheromone-baited traps capable of detecting the presence of red oak borer would be useful for monitoring populations in infested areas and detecting beetles in new locations. We conducted a field study during the 2005 summer emergence testing a series of lures to confirm that long-range attraction occurs and to assess the efficiency of synthetic red oak borer pheromone. We report here the results of that study.