Journal of Chemical Ecology

, Volume 5, Issue 1, pp 131–140 | Cite as

Electroantennogram responses of two populations ofIps pini (Coleoptera: Scolytidae) to insect-produced and host tree compounds

  • Max E. Angst
  • Gerald N. Lanier
Article

Abstract

Electroantennograms in two populations ofIps pini (Idaho and New York) were very similar, even though previous work documented behavioral specificity and revealed that the populations produce different ratios of the enantiomers of the aggregating pheromone ipsdienol. The insect- and host-produced compounds tested evoked characteristic response curves in both populations. EAG amplitude was highest to ipsdienol and the aggregation inhibitor ipsenol. Among the other compounds tested, responses were generally higher to the beetle-produced odorants (linalool, verbenone,trans-verbenol) than to host terpenes (1-octanol, α-pinene). The antennal club and its sensory receptors are described and illustrated by scanning electron micrographs.

Key words

Coleoptera Scolytidae Ips pini pheromones population specificity electrophysiology electroantennogram 

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Copyright information

© Plenum Publishing Corporation 1979

Authors and Affiliations

  • Max E. Angst
    • 1
  • Gerald N. Lanier
    • 1
  1. 1.Department of Environmental and Forest BiologySUNY College of Environmental Science and ForestrySyracuse

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