Vapor pressures and thermodynamic properties of phenylpropanoid and phenylbutanoid attractants of male Bactrocera, Dacus, and Zeugodacus fruit flies at ambient temperatures

Donald N. S. Cameron*, Christopher McRae, Soo J. Park, Phillip W. Taylor, Ian M. Jamie

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

We report on the vapor pressures at ambient temperatures of seven attractants of Bactrocera, Dacus, and Zeugodacus
fruit flies - raspberry ketone, cuelure, raspberry ketone trifluoroacetate, methyl eugenol, methyl isoeugenol, dihydroeugenol, and
zingerone - by a vapor saturation method. Dry nitrogen was passed over each compound at well-controlled temperatures. Entrained
vapor from the compounds was trapped on Tenax GR tubes and analyzed by thermal desorption−gas chromatography−mass
spectrometry. The measured attractant amounts on the traps were converted to vapor pressures. Data were subsequently fitted by
the Antoine equation. From the Antoine equation parameters, thermodynamic properties for each compound were calculated at
298 K. The calculated vapor pressures were used to compare the volatility of the fruit fly attractants and to infer implications for field
applications. Using ambient temperature readings yields far better estimates of vapor pressure values at temperatures relevant for
insect control than do Antoine equation parameters derived from high-temperature reading
Original languageEnglish
Pages (from-to)9654-9663
Number of pages10
JournalJournal of Agricultural and Food Chemistry
Volume68
Issue number36
DOIs
Publication statusPublished - 9 Sep 2020

Keywords

  • vapor pressure
  • volatility
  • saturation method
  • fruit fly
  • cuelure
  • Methyl eugenol
  • Zingerone
  • raspberry ketone

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  • ITTC for Fruit Fly Biosecurity Innovation (ARC)

    Taylor, P., Clarke, A., Riegler, M., Kemp, D., Ponton, F., Cameron, S., Schutze, M., Cook, J., Papanicolaou, A., Dominiak, B., Jessup, A., Reynolds, O., Suckling, M., El Sayad, A., Mas, F., Royer, J., Schellhorn, N., Macfadyen, S., Wilson, C., MQRES Inter Tuition Fee only 2, M. I. T. F. O. 2. & MQRES Inter Tuition Fee only, M. I. T. F. O.

    27/06/16 → …

    Project: Research

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