Journal of Chemical Ecology

, Volume 21, Issue 12, pp 1957–1969

Behavior of processionary males (Thaumetopoea pityocampa) induced by sex pheromone and analogs in a wind tunnel


  • Carmen Quero
    • Department of Biological Organic ChemistryC.I.D. (CSIC)
  • Francisco Camps
    • Department of Biological Organic ChemistryC.I.D. (CSIC)
  • Angel Guerrero
    • Department of Biological Organic ChemistryC.I.D. (CSIC)

DOI: 10.1007/BF02033855

Cite this article as:
Quero, C., Camps, F. & Guerrero, A. J Chem Ecol (1995) 21: 1957. doi:10.1007/BF02033855


The behavioral response of processionary males (Thaumetopoea pityocampa) to the natural pheromone (Z)-13-hexadecen-11-ynyl acetate (1) and structurally related analogs in a wind tunnel is presented. Stereomerically pureZ-1 and a mixture with theE isomer in 80:20 ratio elicited similar attraction responses at 1 µg and higher. The activity was dose-dependent, being optimum at 1 µg with 90% and 80% of males contacting with the source in the presence of theZ-1 andZ/E-1, respectively. 11-Hexadecynyl acetate (2) functioned as a pheromone mimic, being able to induce the complete mate-finding behavioral sequence, although its activity was much lower than that of the pheromone. (Z)-13-Hexadecen-11-ynyl alcohol (3) and, particularly, (Z)-13-hexadecen-11-ynal (4) were potent inhibitors of the upwind flight response in mixtures withZ-1 in 99:1, 95:5, and 91:9 ratios. (Z)-1,1,1-Trifluoro-16-nonadecen-14-yn-2-one (5) also inhibited the response of males to pheromone, particularly in the source contact behavior. Comparison with activity displayed by analogs in field tests is also reported.

Key Words

Sex pheromoneprocessionary mothThaumetopoea pityocampaLepidopteraThaumetopoeidaebehaviorwind tunnel

Copyright information

© Plenum Publishing Corporation 1995