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PREMATING SEARCHING ACTIVITY OF MALE WESTERN SPRUCE BUDWORM MOTHS CHORISTONEURA OCCIDENTALS (LEPIDOPTERA: TORTRICIDAE)

Published online by Cambridge University Press:  31 May 2012

Lonne L. Sower  and
Gary E. Daterman
Lonne L. Sower
Affiliation:
Pacific Northwest Forest and Range Experiment Station, USDA Forest Service, Corvallis, Oregon, USA 97331
Gary E. Daterman
Affiliation:
Pacific Northwest Forest and Range Experiment Station, USDA Forest Service, Corvallis, Oregon, USA 97331
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Extract

Mating behavior among many moth species is mediated by female-released pheromones that attract males over distance. Males of the western spruce budworm, Choristoneura occidentalis Freeman, are attracted by pheromone which has been identified and synthesized (Cory et al. 1982; Silk et al. 1982). In response to pheromone, males will fly upwind and thus approach a bait on a fir limb, then land and persistently search near the bait, often locating it (Sower and Shorb 1985). Male budworm moths moving upwind toward a pheromone source are seen to use a wandering, left-and-right and up-and-down flight pattern. This is the classic anemotactic response of male moths to female-released pheromone as described by Shorey (1976), David et al. (1983), and references therein.

Type
Articles
Information
The Canadian Entomologist , Volume 117 , Issue 10 , October 1985 , pp. 1273 - 1274
Copyright
Copyright © Entomological Society of Canada 1985

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References

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