A male-produced aggregation pheromone of monochamus alternatus (Coleoptera: Cerambycidae), a major vector of pine wood nematode

Stephen A. Teale, Jacob D. Wickham, Feiping Zhang, Jun Su, Yi Chen, Wei Xiao, Lawrence M. Hanks, Jocelyn G. Millar

Research output: Contribution to journalArticlepeer-review

Abstract

The beetle Monochamus alternatus Hope (Coleoptera: Cerambycidae) is an efficient vector of pine wood nematode, the causal pathogen of pine wilt disease, that has resulted in devastating losses of pines in much of Asia. We assessed the response of adult M. alternatus to 2-(undecyloxy) ethanol, the male-produced pheromone of the congeneric M. galloprovincialis Dejean, in field experiments in Fujian Province, People's Republic of China. Both sexes of M. alternatus were attracted to lures consisting of 2-(undecyloxy)-ethanol combined with the host plant volatiles α-pinene and ethanol. A follow-up experiment showed that 2- (undecyloxy) -ethanol was synergized by both ethanol and α-pinene. Coupled gas-chromatography mass-spectrometry analyses of volatiles sampled from field-collected beetles of both sexes revealed that 2-(undecyloxy)-ethanol was a sex-specific pheromone component produced only by males. The combination of 2- (undecyloxy) -ethanol with ethanol and/or α-pinene will provide a valuable and badly needed tool for quarantine detection, monitoring, and management of M. alternatus.

Original languageEnglish (US)
Pages (from-to)1592-1598
Number of pages7
JournalJournal of economic entomology
Volume104
Issue number5
DOIs
StatePublished - Oct 1 2011

Keywords

  • 2-(undecyloxy)-ethanol
  • Monochamus alternatus
  • aggregation pheromone
  • ethanol
  • α-pinene

ASJC Scopus subject areas

  • Ecology
  • Insect Science

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