Blending synthetic pheromones of cerambycid beetles to develop trap lures that simultaneously attract multiple species

Joseph C.H. Wong, Robert F. Mitchell, Becca L. Striman, Jocelyn G. Millar, Lawrence M. Hanks

Research output: Contribution to journalArticle

Abstract

We evaluated attraction of cerambycid beetle species to blends of known cerambycid pheromones to determine whether such blends could be used as effective trap lures for detecting and monitoring multiple species simultaneously. Pheromone-baited traps captured 1,358 cerambycid beetles of which 1,101 (81.1%) belonged to three species in the subfamily Cerambycinae: Neoclytus acuminatus (F.), Neoclytus mucronatus (F.), and Xylotrechus colonus (F.). Beetles of these species were significantly attracted to synthetic blends that contained their pheromone components (isomers of 3-hydroxy-2-hexanone, 2,3-hexanediol, or both), despite the presence of pheromone components of different species, including other isomers of 2,3-hexanediol, (E/Z) -6,10-dimethyl-5,9-undecadien-2-yl acetate, and citral. In some cases, attraction was partially inhibited by the pheromone components of heterospecific species, whereas for N. acuminatus, attraction was completely inhibited when blends contained (2R *,3S *)-hexanediol, the racemic mixture of diastereomers of its pheromone, (2S,3S)hexanediol. Among the remaining beetles captured were three species in the subfamily Lamiinae: Astyleiopus variegatus (Haldeman), Graphisurus fasciatus (Degeer), and Lepturges angulatus (Le-Conte). All three lamiine species were previously known to be attracted to (E/Z)-6,10-dimethyl-5,9-undecadien-2-yl acetate and were captured in significant numbers by blends containing that compound. Our results suggest that different types of cerambycid pheromones can be combined to create effective multispecies lures for use in surveillance programs that target exotic cerambycid species.

Original languageEnglish (US)
Pages (from-to)906-915
Number of pages10
JournalJournal of economic entomology
Volume105
Issue number3
DOIs
StatePublished - Jun 1 2012

Keywords

  • 2,3-hexanediol
  • 3-hydroxy-2-hexanone
  • cerambycidae
  • fuscumol acetate
  • inhibition

ASJC Scopus subject areas

  • Ecology
  • Insect Science

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