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. 1984 Feb;10(2):265-70.
doi: 10.1007/BF00987854.

Behavioral effects of secondary components of sex pheromone of western spruce budworm (Choristoneura occidentalis) free

A R Alford  1 , P J Silk
Affiliations

Behavioral effects of secondary components of sex pheromone of western spruce budworm (Choristoneura occidentalis) free

A R Alford et al. J Chem Ecol. 1984 Feb.

Abstract

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.

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