Factors Affecting Capture of Male Red Pine Cone Beetles, Conophthorus Resinosae Hopkins (Coleoptera: Scolytidae), in Pheromone Traps

The monoterpenes (±)-α-pinene, (1S)-(−)-β-pinene, (R)-(+)-limonene, and myrcene did not enhance the catch of red pine cone beetle, Conophthorus resinosae, in traps baited with the female sex pheromone, (±)-trans-pityol. Traps placed in the upper half of the tree’s crown caught significantly more beetles than those hung from the tree’s trunk 2 m above ground. No significant differences in trap catches were found among standard yellow Japanese beetle trap tops and those painted red, green, blue, white, black, or yellow.