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Articles
Pheromone Components and Active Spaces: What Do Moths Smell and Where Do They Smell It?
1 Department of Entomology, New York State Agricultural Experiment Station, Cornell University, Geneva, NY 14456.
The pheromone-mediated flight behavior of male Oriental fruit moths was observed in the field to test the hypothesis that male activation far downwind of a female is initiated by the major, or most abundant, component of the pheromone blend. Males responded at significantly greater distances to the three-component pheromone blend produced by females than to the major component alone or to either binary mixture containing the major component and one minor component. These results support the alternative hypothesis that the active space of a multicomponent pheromone is a function of male perception of the female-released blend of components, rather than of the major component alone, and that so-called minor components have a greater impact on male behavior farther downwind of a female than previously thought. Submitted on March 2, 1987Accepted on June 2, 1987
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Science. ISSN 0036-8075 (print), 1095-9203 (online)
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