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Journal of Chemical Ecology

, Volume 10, Issue 9, pp 1309–1323 | Cite as

Identification of new sex pheromone components inTrichoplusia ni, predicted from biosynthetic precursors

  • L. B. Bjostad
  • C. E. Linn
  • J. -W. Du
  • W. L. Roelofs
Article

Abstract

In addition to the previously identified components (Z)-7-dodecenyl acetate and dodecyl acetate, sex pheromone glands ofTrichoplusia ni release (Z)-5-dodecenyl acetate, 11-dodecenyl acetate, (Z)-7-tetradecenyl acetate, and (Z)-9-tetradecenyl acetate. Bioassays in a flight tunnel showed that a synthetic blend of these six compounds elicited complete flights to the source from 95% of the males tested and elicited hairpenciling responses at the end of the flights from 88% of the males tested. This blend was not significantly different from intact pheromone glands, which elicited complete flights to the source from 98% of the males tested and hairpenciling responses from 91% of the males tested. In contrast, the previously identified two-component blend elicited significantly fewer complete flights to the source (33%) and did not elicit hairpenciling responses from any of the males tested. The search for additional sex pheromone components was prompted by our previous identification of unusual fatty acyl moieties in the gland that seemed to be possible biosynthetic intermediates.

Key words

Lepidoptera Noctuidae Trichoplusia ni pheromone (Z)-7-dodecenyl acetate (Z)-5-dodecenyl acetate 11-dodecenyl acetate (Z)-7-tetradecenyl acetate (Z)-9-tetradecenyl acetate biosynthesis 

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Copyright information

© Plenum Publishing Corporation 1984

Authors and Affiliations

  • L. B. Bjostad
    • 1
  • C. E. Linn
    • 1
  • J. -W. Du
    • 2
  • W. L. Roelofs
    • 1
  1. 1.Department of EntomologyNew York State Agricultural Experiment StationGeneva
  2. 2.Shanghai Institute of EntomologyAcademia SinicaShanghaiP.R.C.

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