A male-produced aggregation pheromone blend consisting of alkanediols, terpenoids, and an aromatic alcohol from the cerambycid beetle Megacyllene caryae

Emerson S. Lacey, Jardel A. Moreira, Jocelyn G. Millar, Lawrence M. Hanks

Research output: Contribution to journalArticlepeer-review

Abstract

Bioassays conducted with a Y-tube olfactometer provided evidence that both sexes of the cerambycid beetle Megacyllene caryae (Gahan) were attracted to odor produced by males. Odor collected from male M. caryae contained eight male-specific compounds: a 10:1 blend of (2S,3R)- and (2R,3S)-2,3-hexanediols (representing 3.2±1.3% of the total male-specific compounds), (S)-(-)-limonene (3.1±1.7%), 2-phenylethanol (8.0±2.4%), (-)-α-terpineol (10.0±2.8%), nerol (2.1±1.5%), neral (63.3±7.3%), and geranial (8.8±2.4%). Initial field bioassays determined that none of these compounds was attractive as a single component. Further field trials that used a subtractive bioassay strategy determined that both sexes were attracted to the complete blend of synthetic components, but the elimination of any one component resulted in a decline in trap captures. Blends that were missing (2S,3R)-2,3-hexanediol, (2R,3S)-2,3-hexanediol, or citral (a 1:1 mixture of neral and geranial) attracted no more beetles than did controls. A pheromone blend of this complexity, composed of alkanediols, terpenoids, and aromatic alcohols, is unprecedented for cerambycid species.

Original languageEnglish (US)
Pages (from-to)408-417
Number of pages10
JournalJournal of Chemical Ecology
Volume34
Issue number3
DOIs
StatePublished - Mar 1 2008

Keywords

  • 2,3-Hexanediol
  • 2-Phenylethanol
  • Aggregation pheromone
  • Geranial
  • Limonene
  • Longhorned beetle
  • Neral
  • Nerol
  • Sex pheromone
  • Wood-boring insect
  • α-Terpineol

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Biochemistry

Fingerprint Dive into the research topics of 'A male-produced aggregation pheromone blend consisting of alkanediols, terpenoids, and an aromatic alcohol from the cerambycid beetle Megacyllene caryae'. Together they form a unique fingerprint.

Cite this