Dose-Dependent and Species-Specific Responses of Pine Bark Beetles (Coeoptera: Scolytidae) to Monoterpenes in Association with Phermones

  • Authors: Miller, Daniel R.; Borden, John H.
  • Publication Year: 2000
  • Publication Series: Miscellaneous Publication
  • Source: The Canadian Entomologist 132 : 183-195. (2000)

Abstract

Monoterpenes affected the attraction of three sympatric species of bark beetles (Coleoptera: Scolytidae) to pheromone-baited multiple-funnel traps in stands of lodgepole pine. Catches of Ips pini(Say) in traps baited with its pheromone, ipsdienol, were directly related to the release rates of 3-carene, ß-pphellandrene, and ß-pinene. Catches of Dendroctonus ponderosae Hopkins in traps baited with exo-brevicomin and cis- and trans-verbenol were directly related to the release rates of 3-carene, myrcene, and pphellandrene. Ips latidens (LeConte) exhibited preferences for traps baited with ipsenol and ß-phellandrene or ß-pinene but not in a dose-dependent fashion. Catches of I. latidens in traps baited with its pheromone, ipsenol, were inversely proportional to the release rates of 3-carene, myrcene, and terpinolene. Similarly, catches of I. pini in traps baited with its pheromone, ipsdienol, were inversely proportional to the release rates of myrcene and terpinolene. These results demonstrate a degree of species specificity among three phloeophagous species with respect to preferred host odours. The bark beetle predators-associates Lusconotus complex LeConte (Coleoptera: Colydiidae) and Corticeus Piller and Mitterpacher sp. (Coleoptera: Tenebrionidae) demonstrated some measure of specificity to monoterpenes in their responses to ipsdienol-baited funnel traps. g-Terpinene increased attraction of L. complex but had no effect on Corticeus sp., whereas a- and ß-pinene increased attraction of Corticeus sp. but had no effect on L. complex.

  • Citation: Miller, Daniel R.; Borden, John H. 2000. Dose-Dependent and Species-Specific Responses of Pine Bark Beetles (Coeoptera: Scolytidae) to Monoterpenes in Association with Phermones. The Canadian Entomologist 132 : 183-195. (2000)
  • Posted Date: April 1, 1980
  • Modified Date: August 22, 2006
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