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PHEROMONE DISRUPTION CONTROLS DOUGLAS-FIR TUSSOCK MOTH (LEPIDOPTERA: LYMANTRIIDAE) REPRODUCTION AT HIGH INSECT DENSITIES1

Published online by Cambridge University Press:  31 May 2012

L. L. Sower
Affiliation:
Pacific Northwest Forest and Range Experiment Station, USDA Forest Service, Cowallis, Oregon 97331.
G. E. Daterman
Affiliation:
Pacific Northwest Forest and Range Experiment Station, USDA Forest Service, Cowallis, Oregon 97331.
C. Sartwell
Affiliation:
Albany International Company, ConRel Division, P.O. Box 516, Buckeye, Arizona 85326.
W. Funkhouser
Affiliation:
Pacific Northwest Forest and Range Experiment Station, USDA Forest Service, Cowallis, Oregon 97331.

Abstract

Hollow fibers containing synthetic pheromone (Z-6-heneicosen-11-one) were applied by helicopter to six plots of about 8 ha each. Douglas-fir tussock moth, Orgyia pseudotsugata (McDunnough), had reached such high population levels on the plots that trees in some areas were completely defoliated. Reproduction of the moths was reduced 71 and 81%, respectively, at dosages of 8 and 25 g of pheromone/ha relative to untreated control plots.

Résumé

Des fibres creuses contenant une phéromone synthétique (Z-6-heneicosen-11-one) ont été dispersées par hélicoptère dans six parcelles d'environ 8 hectares chacune. Les papillons de la chenille à houppes du Douglas, Orgyia pseudotsugata (McDunnough), avaient atteint dans les parcelles, des niveaux de populations tels que la défoliation était totale par endroits. La reproduction des papillons fut réduite de 71 à 81%, respectivement, aux dosages de 8 et de 25 g de phéromone par hectare, par rapport à des parcelles témoins.

Type
Articles
Copyright
Copyright © Entomological Society of Canada 1983

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References

Daterman, G. E., Peterson, L. J., Robbins, R. G., Sower, L. L., Daves, G. D. Jr., and Smith, R. G.. 1976. Laboratory and field bioassays of the Douglas-fir tussock moth pheromone, (Z-6-heneicosen-11-one). Environ. Ent. 5: 11871199.CrossRefGoogle Scholar
Smith, R. G., Daterman, G. E., and Daves, G. D. Jr., 1975. Douglas-fir tussock moth: sex pheromone identification and synthesis. Science 188: 6364.CrossRefGoogle Scholar
Sower, L. L., Daterman, G. E., Orchard, R. D., and Sartwell, C.. 1979. Reduction of Douglas-fir tussock moth reproduction with synthetic sex pheromone. J. econ. Ent. 72: 739742.CrossRefGoogle Scholar
Swaby, J. A. 1979. Pheromone mediated behavior of adult Douglas-fir tussock moth, Orgyia pseudotusugata (McDunnough) (Lepidoptera: Lymantriidae). Ph.D. Thesis, Oregon State Univ., Corvallis. 981 pp.Google Scholar
Wickman, B. E. 1979. A case study of a Douglas-fir tussock moth outbreak and stand condition 10 years later. U.S. Dep. Agric. Forest Serv. Res. Pap. PNW-224. 22 pp. Pac. Northwest For. and Range Exp. Stn., Portland, Oregon.Google Scholar