(2E,6Z,9Z)-2,6,9-Pentadecatrienal as a Male-Produced Aggregation-Sex Pheromone of the Cerambycid Beetle Elaphidion mucronatum

Jocelyn G. Millar, Robert F. Mitchell, Linnea R. Meier, Todd D. Johnson, Judith A. Mongold-Diers, Lawrence M Hanks

Research output: Contribution to journalArticle

Abstract

An increasing body of evidence suggests that the volatile pheromones of cerambycid beetles are much more diverse in structure than previously hypothesized. Here, we describe the identification, synthesis, and field testing of (2E,6Z,9Z)-2,6,9-pentadecatrienal as a male-produced aggregation-sex pheromone of the cerambycid Elaphidion mucronatum (Say) (subfamily Cerambycinae, tribe Elaphidiini). This novel structure is unlike any previously described cerambycid pheromone, and in field bioassays attracted only this species. Males produced about 9 μg of pheromone per 24 h period, and, in field trials, lures loaded with 10, 25, and 100 mg of synthetic pheromone attracted beetles of both sexes, whereas lures loaded with 1 mg of pheromone or less were not significantly attractive. Other typical cerambycine pheromones such as 3-hydroxy-2-hexanone, syn-2,3-hexanediol, and anti-2,3-hexanediol were not attractive to E. mucronatum, and when combined with (2E,6Z,9Z)-2,6,9-pentadecatrienal, the former two compounds appeared to inhibit attraction. Unexpectedly, adults of the cerambycine Xylotrechus colonus (F.) were attracted in significant numbers to a blend of 3-hydroxyhexan-2-one and (2E,6Z,9Z)-2,6,9-pentadecatrienal, even though there is no evidence that this species produces the latter compound. From timed pheromone trap catches, adults of E. mucronatum were determined to be active from dusk until shortly after midnight.

Original languageEnglish (US)
Pages (from-to)1056-1065
Number of pages10
JournalJournal of Chemical Ecology
Volume43
Issue number11-12
DOIs
StatePublished - Dec 1 2017

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aggregation pheromone
Sex Attractants
aggregation pheromones
sex pheromone
Pheromones
Beetles
sex pheromones
pheromone
pheromones
beetle
Agglomeration
Coleoptera
Xylotrechus colonus
pheromone trap
pheromone traps
Bioassay
bioassay
field experimentation
Biological Assay
bioassays

Keywords

  • Antagonism
  • Attractant
  • Dose response
  • Interspecific cross-attraction
  • Longhorned beetle

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Biochemistry

Cite this

(2E,6Z,9Z)-2,6,9-Pentadecatrienal as a Male-Produced Aggregation-Sex Pheromone of the Cerambycid Beetle Elaphidion mucronatum. / Millar, Jocelyn G.; Mitchell, Robert F.; Meier, Linnea R.; Johnson, Todd D.; Mongold-Diers, Judith A.; Hanks, Lawrence M.

In: Journal of Chemical Ecology, Vol. 43, No. 11-12, 01.12.2017, p. 1056-1065.

Research output: Contribution to journalArticle

Millar, Jocelyn G. ; Mitchell, Robert F. ; Meier, Linnea R. ; Johnson, Todd D. ; Mongold-Diers, Judith A. ; Hanks, Lawrence M. / (2E,6Z,9Z)-2,6,9-Pentadecatrienal as a Male-Produced Aggregation-Sex Pheromone of the Cerambycid Beetle Elaphidion mucronatum. In: Journal of Chemical Ecology. 2017 ; Vol. 43, No. 11-12. pp. 1056-1065.
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