Identification of polyenic hydrocarbons from the northern winter moth, Operophtera fagata, and development of a species specific lure for pheromone traps

Gábor Szocs, M. Tóth, Zsolt Kárpáti, Junwei Zhu, Christer Löfstedt, Ernst Plass, Wittko Francke

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

In order to elucidate the composition of the female sex pheromone of the northern (beech) winter moth, Operophtera fagata Scharf. (Lepidoptera: Geometridae), ovipositor extracts of unmated, calling females were analysed by gas chromatography with simultaneous electroantennographic and flame ionization detection (GC-EAD/FID). Male antennal responses indicated three active components, two of which had distinct matching peaks in the FID trace. Using coupled gas chromatography- mass spectrometry (GC-MS), these two compounds were identified as (9Z)-nonadecene (9Z-19:Hy), and (6Z,9Z)-nonadecadiene (6Z9Z-19:Hy), respectively. The third component, present in very small amounts only, was identified as (1,3Z,6Z,9Z)-nonadecatetraene (1,3Z6Z9Z-19:Hy), known as the sex pheromone of the common winter moth, O. brumata. Field tests revealed that traps baited with 6Z9Z-19:Hy and 1,3Z6Z9Z-19:Hy caugth large numbers of male O. fagata. Both compounds were found to be essential for attraction of O. fagata. In addition, the diene prevented captures of co-occurring O. brumata. In contrast, 9Z-19:Hy neither influenced the attractiveness of the two-component mixture towards O. fagata nor contributed to bait specificity. A binary mixture of 6Z9Z-19:Hy and 1,3Z6Z9Z-19:Hy in a ratio of 10:1, applied to pieces of rubber tubing, constituted a highly attractive and species-specific bait for O. fagata, which can be used for monitoring of the flight of this defoliator pest of deciduous forests.

Original languageEnglish
Pages (from-to)53-58
Number of pages6
JournalChemoecology
Volume14
Issue number1
DOIs
Publication statusPublished - 2004

Fingerprint

Operophtera
Operophtera brumata
pheromone trap
Sex Attractants
Moths
pheromone traps
sex pheromone
Pheromones
bait
sex pheromones
Hydrocarbons
baits
Gas chromatography
moth
hydrocarbons
gas chromatography
hydrocarbon
Fagus
Flame Ionization
Lepidoptera

Keywords

  • Geometridae
  • Monitoring
  • Operophtera brumata
  • Operophtera fagata
  • Polyenic hydrocarbon
  • Reproductive isolation
  • Sex pheromone
  • Sympatric species

ASJC Scopus subject areas

  • Ecology
  • Biochemistry, Genetics and Molecular Biology(all)
  • Biochemistry

Cite this

Identification of polyenic hydrocarbons from the northern winter moth, Operophtera fagata, and development of a species specific lure for pheromone traps. / Szocs, Gábor; Tóth, M.; Kárpáti, Zsolt; Zhu, Junwei; Löfstedt, Christer; Plass, Ernst; Francke, Wittko.

In: Chemoecology, Vol. 14, No. 1, 2004, p. 53-58.

Research output: Contribution to journalArticle

Szocs, Gábor ; Tóth, M. ; Kárpáti, Zsolt ; Zhu, Junwei ; Löfstedt, Christer ; Plass, Ernst ; Francke, Wittko. / Identification of polyenic hydrocarbons from the northern winter moth, Operophtera fagata, and development of a species specific lure for pheromone traps. In: Chemoecology. 2004 ; Vol. 14, No. 1. pp. 53-58.
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