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EFFECT OF ASH FROM MOUNT ST. HELENS ON SURVIVAL OF NEONATE LARVAE OF THE DOUGLAS-FIR TUSSOCK MOTH (LEPIDOPTERA: LYMANTRIIDAE)

Published online by Cambridge University Press:  31 May 2012

R. R. Mason
Affiliation:
Range and Wildlife Habitat Laboratory, Pacific Northwest Forest and Range Experiment Station, U.S. Department of Agriculture, La Grande, Oregon 97850
B. E. Wickman
Affiliation:
Range and Wildlife Habitat Laboratory, Pacific Northwest Forest and Range Experiment Station, U.S. Department of Agriculture, La Grande, Oregon 97850
H. G. Paul
Affiliation:
Range and Wildlife Habitat Laboratory, Pacific Northwest Forest and Range Experiment Station, U.S. Department of Agriculture, La Grande, Oregon 97850

Extract

The eruption of Mount St. Helens in southwestern Washington on 18 May 1980, ejected tons of volcanic ash that settled over large portions of eastern Washington, northern Idaho, and western Montana. Although most of these areas received only a light dusting, the heaviest deposits in the central path of the ash plume formed a layer of ash 5 to 8 cm thick (Cook et al. 1981). The ash consisted of microscopic, jagged particles that were highly abrasive and easily damaged the epicuticular wax layer of insects, causing desiccation and eventual death (Brown and Hussain 1981). The impact of ash on a variety of agricultural-related insects in the fallout area has been described (Akre et al. 1981; Fye 1983; Howell 1981; Johansen et al. 1981; Klostermeyer et al. 1981). This note reports the effects of ash on small larvae of a major forest defoliator, the Douglas-fir tussock moth, Orgyia pseudotsugata (McDunnough), as determined in laboratory and field experiments.

Type
Articles
Copyright
Copyright © Entomological Society of Canada 1984

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References

Akre, R. D., Hansen, L. D., Reed, H. C., and Corpus, L. D.. 1981. Effects of ash from Mt. St. Helens on ants and yellow jackets. Melanderia 37: 119.Google Scholar
Brown, J. J. and bin Hussain, Yahaya. 1981. Physiological effects of volcanic ash from Mt. St. Helens. Melanderia 37: 3944.Google Scholar
Cook, R. J., Barron, J. C., Papendick, R. I., and Williams, G. J. III. 1981. Impact on agriculture of the Mount St. Helens eruptions. Science 211: 1622.CrossRefGoogle ScholarPubMed
Fye, R. E. 1983. Impact of volcanic ash on pear psylla (Homoptera:Psyllidae) and associated predators. Environ. Ent. 12: 222226.CrossRefGoogle Scholar
Howell, J. F. 1981. Codling moth: The effects of volcanic ash from the eruption of Mt. St. Helen's on egg, larval and adult survival. Melanderia 37: 5055.Google Scholar
Johansen, C. A., Eves, J. D., Mayer, D. F., Bach, J. C., Nedrow, M. E., and Kious, C. W.. 1981. Effect of ash from Mt. St. Helens on bees. Melanderia 37: 2029.Google Scholar
Klostermeyer, E. C., Corpus, L. D., and Campbell, C. L.. 1981. Population changes in arthropods in wheat following volcanic fall-out. Melanderia 37: 4549.Google Scholar
Shanks, C. A. Jr.,, and Chase, D. L.. 1981. Effect of volcanic ash on adult Otiorhynchus (Coleoptera: Curculionidae). Melanderia 37: 6366.Google Scholar
Thompson, C. G. and Peterson, L. J.. 1978. Rearing the Douglas-fir tussock moth. U.S. Dep. Agric., Agric. Handbk. 520. 17 pp.Google Scholar
Wickman, B. E., Mason, R. R., and Trostle, G. C.. 1981. Douglas-fir tussock moth. U.S. Dep. Agric. For. Serv. For. Insect and Disease Leafl. 86. 10 pp.Google Scholar