Behavioral effects of secondary components of sex pheromone of western spruce budworm (Choristoneura occidentalis) free
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In a laboratory wind tunnel, upwind flight and close-range orientation to a pheromone source by maleC. occidentalis were facilitated by the addition of the secondary componentsE/Z11-tetradecen-1-ol acetate (89∶11) andE/Z11-tetradecen-1-ol (85∶15) to low source concentrations of the primary components,E/Z11-tetradecenal (92∶8). Male responses to the blends tested never equalled their responses to virgin females. The primary components alone, when released at a rate similar to that of a “calling” female, never elicited male upwind flight or source location. However, the addition of the secondary components enhanced these behavioral sequences.
Key wordsChoristoneura occidentalis western spruce budworm Lepidoptera Tortricidae pheromones behavior wind tunnel
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- Alford, A.R., Silk, P.J., McClure, M., Gibson, C., andFitzpatrick, J. 1983. Behavioural effects of secondary components of the sex pheromone of the spruce budwormChoristoneura fumiferana Clem.Can. Entomol. 115:1053–1058.Google Scholar
- Cory, H.T., Daterman, G.E., Daves, G.D., Jr., Sower, L.L., Shepherd, R.F., andSanders, C.J. 1982. Chemistry and field evaluation of the sex pheromone of western spruce budwormChoristoneura occidentalis, Freeman.J. Chem. Ecol. 8(2):339–350.Google Scholar
- Miller, J.R., andRoelofs, W.L. 1978. Sustained-flight tunnel for measuring insect responses to wind-borne sex pheromones.J. Chem. Ecol. 4:187–198.Google Scholar
- Roelofs, W.L. 1978. Threshold hypothesis for pheromone perception.J. Chem. Ecol. 4:685–699.Google Scholar
- Silk, P.J., Tan, S.H., Wiesner, C.J., Ross, R.J., andLongeran, G.C. 1980. Sex pheromone chemistry of the eastern spruce budworm.Environ. Entomol. 9:640–644.Google Scholar
- Silk, P.J., Wiesner, C.J., Tan, S.H., Ross, R.J., andGrant, G.G. 1982. Sex pheromone chemistry of the western spruce budwormChoristoneura occidentalis, Freeman.J. Chem. Ecol. 8(2):351–362.Google Scholar
- Weatherston, J., Roelofs, W., Comeau, A., andSanders, C.J. 1971. Studies of physiologically active arthropod secretions. X. Sex pheromone of the eastern spruce budwormChoristoneura fumiferana (Lepidoptera: Tortricidae).Can. Entomol. 103:1741–1747.Google Scholar