Journal of Chemical Ecology

, Volume 19, Issue 5, pp 953–962 | Cite as

Spatial discrimination between sources of pheromone and an inhibitor by the light-brown apple mothEpiphyas postvittana (Walker) (Lepidoptera: Tortricidae)

  • E. R. Rumbo
  • S. M. Deacon
  • L. P. Regan


Inhibition of the behavioral responses of maleEpiphyas postvittana moths by theZ isorner of the major component of the sex pheromone,E11-14: OAc, was studied in a wind tunnel. Inhibition was detectable at a Z isomer concentration of 10% that of the major component and was greatest when it was added to the same source as the pheromone. Inhibition declined rapidly as the inhibitor was moved across-wind away from the pheromone source but was largely maintained when the sources were separated upwind or downwind. The results showed that the insects possess a high degree of temporal resolution for odor plumes of different composition.

Key Words

Sex pheromone inhibitor temporal resolution spatial resolution wind tunnel light-brown apple moth Epiphyas postvittana lepidoptera tortricidae 


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Copyright information

© Plenum Publishing Corporation 1993

Authors and Affiliations

  • E. R. Rumbo
    • 1
  • S. M. Deacon
    • 1
  • L. P. Regan
    • 1
  1. 1.CSIRO Division of EntomologyCanberraAustralia

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