Integrated Pest Management Guide: Arizona Five-Spined Ips, 'Ips lecontei' Swaine, and Pine Engraver, 'Ips pini' (Say) in Ponderosa Pine

摘要

The Arizona five-spined ips, 'Ips lecontei' Swaine, and the pine engraver, 'Ips pini' (Say), are common and destructive bark beetles that attack pole-size ponderosa pines in Arizona and New Mexico. The Arizona five-spined ips is mostly a pest in low elevation ponderosa pine forests below the Mogollon Rim in central and southern Arizona. It also occurs in southwestern New Mexico. The pine engraver is more widely distributed in the Southwest and causes the heaviest tree losses in higher elevation forests in the northern portions of both states. This guide summarizes technical information in publications, observations of pest management specialists, and unpublished tree loss data on these insects. This guide presents the most important facts about these beetles and their management, and serves as a reference tool to forest managers.