EVALUATION OF THREE TRAP DESIGNS FOR THE CAPTURE OF CONIFER-FEEDING BEETLES AND OTHER FOREST COLEOPTERA

Abstract

AbstractSticky stovepipe traps, flight interception traps, and Lindgren multiple-funnel traps were baited with conifer monoterpenes and ethanol to capture conifer-feeding beetles and their associates. Of the more than 6000 beetles captured, 74.6% were caught by stovepipe traps, 14.8% by interception traps, and 10.7% by multiple-funnel traps. Dominant families were the Scolytidae (14.5% of all beetles captured), Elateridae (14.4%), Lampyridae (12.1%), Cerambycidae (12.0%), Cleridae (10.5%), Curculionidae (9.3%), Staphylinidae (4.0%), and Buprestidae (3.4%), with other families accounting for 19.8% of specimens captured. Conifer-feeding species in the families Buprestidae, Melandryidae, Cerambycidae, Scolytidae, and Curculionidae and their predators (Cleridae) were captured in greatest numbers by the sticky stovepipe traps; the interception traps generally captured the fewest specimens. The sticky stovepipe traps may be superior because they offer a distinct vertical silhouette to approaching insects.