title: Response of the clerid predatorThanasimus dubius (F.) to bark beetle pheromones and tree volatiles in a wind tunnel.
abstract: Tree volatiles and pheromones produced by southern bark beetles were bioassayed for response by the clerid predatorThanasimus dubius (F.). Upwind flights in a laboratory olfactometer, modified from Visser (1976), were used to determine the attractiveness of compounds. Differences in response to a solvent control and pheromone treatment were tested for statistical significance using the Wilcoxon signed ranks test. Both sexes ofT. dubius responded to frontalin, ipsdienol, and α-pinene in a dose-dependent manner with different but overlapping concentration ranges. Strong differences between the sexes were observed in response totrans-verbenol, verbenone, andl-β-pinene. Neither sex responded to ipsenol orendo-brevicomin.
authors: , ARC-Rt. 4, Box 63, 32344, Monticello, Florida.
authors: R F
authors: RF
authors: Mizell
authors: J L
authors: JL
authors: Frazier
authors: T E
authors: TE
authors: Nebeker