Journal of Chemical Ecology

, Volume 20, Issue 10, pp 2565–2574 | Cite as

Winter host component reduces colonization by bird-cherry-oat aphid,Rhopalosiphum padi (L.) (homoptera, aphididae), and other aphids in cereal fields

  • J. Pettersson
  • J. A. Pickett
  • B. J. Pye
  • A. Quiroz
  • L. E. Smart
  • L. J. Wadhams
  • C. M. Woodcock
Article

Abstract

Methyl salicylate, a volatile component ofPrunus padus, the winter host ofRhopalosiphum padi, was found to reduce colonization of the summer host by this aphid. The compound was identified by gas chromatographic analysis coupled with recordings from cells in the primary rhinarium on the sixth antennal segment of the aphid. Methyl salicylate eliminated the attractancy of oat leaves to spring migrants in olfactometer tests. In Sweden, this compound significantly decreased colonization of field grown cereals byR. padi and in the U.K., populations ofSitobion avenae andMetopolophium dirhodum were significantly lower on treated plots.

Key Words

Aphid Rhopalosiphum padi Homoptera Aphididae cereal electrophysiology methyl salicylate behavior field study 

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Copyright information

© Plenum Publishing Corporation 1994

Authors and Affiliations

  • J. Pettersson
    • 1
  • J. A. Pickett
    • 2
  • B. J. Pye
    • 2
  • A. Quiroz
    • 3
  • L. E. Smart
    • 2
  • L. J. Wadhams
    • 2
  • C. M. Woodcock
    • 2
  1. 1.Swedish University of Agricultural SciencesUppsalaSweden
  2. 2.IACR Rothamsted Experimental StationHarpendenUK
  3. 3.Laboratorio de Química Ecológica, Departamento de Química Facultad de CienciasUniversidad de ChileSantiagoChile

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