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EFFECTS OF HIGH TEMPERATURE AND VAPOR PRESSURE DEFICIT ON EUROPEAN PINE SHOOT MOTH, RHYACIONIA BUOLIANA (LEPIDOPTERA: OLETHREUTIDAE), EGG PRODUCTION AND SURVIVAL

Published online by Cambridge University Press:  31 May 2012

G. E. Daterman
G. E. Daterman
Affiliation:
Forestry Sciences Laboratory, Pacific Northwest Forest and Range Experiment Station, U.S. Forest Service, Corvallis, Oregon
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Abstract

Fecundity and egg survival had inverse linear relationships with increasing evaporation potentials expressed as vapor pressure deficits. With an increase of vapor pressure deficit from 4 to 24 mm Mg at a favorable temperature of 25.5 °C, mean fecundity could be reduced from 130 to 51 eggs and egg survival from 90% to 20%. Optimal laboratory physical conditions for egg production consisted of a low evaporation rate of less than 9 mm Hg vapor pressure deficit but short of a saturated atmosphere at a room temperature of 25.5 °C. One hour daily exposure of eggs to high temperatures up to 39 °C did not cause a significant increase in egg mortality. In the field there was no difference in fecundity of females between plots in damp western Washington and dry central Oregon (pine region). Egg mortality was always higher at the central Oregon plot, presumably because of higher evaporation rates. Since high vapor pressure deficits are common occurrences during the growing season in most of the pine region, it is possible this factor could limit Rhyacionia buoliana populations in some of these areas.

Type
Articles
Information
The Canadian Entomologist , Volume 104 , Issue 9 , September 1972 , pp. 1387 - 1396
Copyright
Copyright © Entomological Society of Canada 1972

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References

Chawla, S. S. and Harwood, R. F.. 1968. Artificial diets for the European pine shoot moth Rhyacionia buoliana (Schiffermüller) (Lepidoptera: Olethreutidae). Wash. agric. Exp. Stn Tech. Bull. 59.Google Scholar
Daterman, G. E. 1970. An improved technique for mating European pine shoot moth, Rhyacionia buoliana (Lepidoptera: Olethreutidae) in the laboratory. Can. Ent. 102: 541–545.CrossRefGoogle Scholar
Fisher, R. A. 1930. The genetical theory of natural selection. The Clarendon Press, Oxford.Google Scholar
Green, G. W. 1962. Low winter temperatures and the European pine shoot moth, Rhyacionia buoliana (Schiffermüller) in Ontario. Can. Ent. 94: 314–336.CrossRefGoogle Scholar
Green, G. W. 1967. Weather and insects. In Lowry, W. P. (Ed.), Proceedings of 28th Annual Biology Colloquium. Oregon State Univ. Press, Corvallis.Google Scholar
Pointing, P. J. and Green, G. W.. 1962. A review of the history and biology of the European pine shoot moth, Rhyacionia buoliana (Schiffermüller) (Lepidoptera: Olethreutidae) in Ontario. Proc. ent. Soc. Ont. 92: 58–69.Google Scholar
Ross, D. A. 1966. Overwintering of caged Rhyacionia buoliana (Schiffermüller) at Vernon, British Columbia in 1965–1966. J. ent. Soc. Br. Columb. 63: 31–32.Google Scholar
Webster, L. T. 1962. European pine shoot moth 1961 control project, Spokane County. State of Washington, Dep. of Natural Resources, Special Report.Google Scholar
Winston, P. W. and Bates, D. H.. 1960. Saturated solutions for the control of humidity in biological research. Ecology 41: 232–237.Google Scholar