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Journal of Chemical Ecology

, Volume 8, Issue 4, pp 679–687 | Cite as

Aggregation pheromone of the male granary weevil,Sitophilus granarius (L.)

  • D. L. Faustini
  • W. L. Giese
  • J. K. Phillips
  • W. E. Burkholder
Article

Abstract

Evidence for a male-produced aggregation pheromone inSitophilus granarius is reported. Hexane extracts of Tenax®-trapped volatiles from males held on wheat were attractive to both sexes in a multiple-choice olfactometer and pitfall bioassay chamber. A quantitative relationship existed between days of insect exposure on disks and degree of responsiveness. The maximum response was to 35 insect-day-equivalents. Diel-related activity showed both sexes responsive during photophase and nonresponsive during scotophase.

Key words

Sitophilus granarius Coleoptera Curculionidae aggregation pheromone granary weevil 

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Copyright information

© Plenum Publishing Corporation 1982

Authors and Affiliations

  • D. L. Faustini
    • 1
  • W. L. Giese
    • 1
  • J. K. Phillips
    • 1
  • W. E. Burkholder
    • 1
  1. 1.Stored Product and Household Insects Laboratory, ARS, USDA Department of EntomologyUniversity of Wisconsin-MadisonMadison

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