Diurnal emission of volatile compounds by Japanese beetle-damaged grape leaves

John H. Loughrin, Daniel A. Potter, Thomas R. Hamilton-Kemp, Matthew E. Byers

Research output: Contribution to journalArticlepeer-review

45 Scopus citations


The volatile compounds liberated by Japanese beetle (Popillia japonica Newman) feeding on grape leaves (Vitis labrusca L.) were studied. Ten consecutive collections of 3 hr duration were performed on live vines starting at 09:00 and continuing until 15:00 the following day. Release of most compounds followed a diurnal pattern, with the period of peak emission from 12:00 to 15:00 and the period of least emission from 00:00 to 03:00. Nineteen compounds were identified from the beetle-damaged vines, most of which were aliphatic aldehydes, alcohols and esters as well as terpene hydrocarbons. During periods of peak emission, volatile production from beetle-damaged vines was about 50-times higher than that of undamaged vines.

Original languageEnglish
Pages (from-to)919-923
Number of pages5
Issue number5
StatePublished - Jul 1997

Bibliographical note

Funding Information:
Acknowledgements-We thank David Held, Brian Kunkel and Randy Collins for technical assistance and Gwyn Ison for manuscript preparation. We also thank Owen Loughrin and Terry McIlvain of the University of Kentucky Center for Robotics and Manufacturing Systems for technical advice. This work was supported by USDA SRIPM grant 94-34103-0185. This is manuscript no. 96-08-121 of the University of Kentucky Agricultural Experiment Station and is published with the approval of the director.


  • Diurnal
  • Grape
  • Kairomone
  • Plant insect interactions
  • Popillia japonica
  • Semiochemical
  • Terpene
  • Terpenoid
  • Vitaceae
  • Vitis labrusca

ASJC Scopus subject areas

  • Biochemistry
  • Molecular Biology
  • Plant Science
  • Horticulture


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