Journal of Chemical Ecology

, Volume 14, Issue 4, pp 1087–1098 | Cite as

Effect of juvenile hormone analog, fenoxycarb, on pheromone production byIps paraconfusus (Coleoptera: Scolytidae)

  • N. -M. Chen
  • J. H. Borden
  • H. D. PierceJr.
Article

Abstract

Topical application of the juvenile hormone analog, fenoxycarb, in acetone induced newly emerged male California five-spined ips,Ips paraconfusus Lanier, to become attractive to females, as measured by positive responses to male abdominal extracts in a laboratory bioassay. Two pheromones, ipsdienol and ipsenol, were detected by gas chromatography in the abdominal extracts of fenoxycarb-treated males. Pheromone production was minimal at a dose of 0.1 μg/insect of fenoxycarb, maximal at 10 μg, and was reduced to unmeasurable amounts at a dose of 100 μg. In comparison, peak production of pheromones was induced at a dose of 0.1 μg/insect of natural juvenile hormone (JH III). Treatment with 10 μg of fenoxycarb resulted in the occurrence of pheromones 12 hr after exposure, maximal pheromone content between 16 and 20 hr, and undetectable amounts after 36 hr. The demonstration that fenoxycarb is an active juvenile hormone analog for a bark beetle suggests that it may have practical utility in managing these insects.

Key words

Juvenile hormone analog juvenile hormone JH III,Ips paraconfusus Coleoptera Scolytidae bark beetles aggregation pheromones pheromones ipsenol ipsdienol 

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Copyright information

© Plenum Publishing Corporation 1988

Authors and Affiliations

  • N. -M. Chen
    • 1
  • J. H. Borden
    • 1
  • H. D. PierceJr.
    • 2
  1. 1.Centre for Pest Management, Department of Biological SciencesSimon Fraser UniversityBurnabyCanada
  2. 2.Department of ChemistrySimon Fraser UniversityBurnabyCanada

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