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TWO VIRUSES FROM WESTERN FALSE HEMLOCK LOOPER, NEPYTIA FREEMANI (LEPIDOPTERA: GEOMETRIDAE)

Published online by Cambridge University Press:  31 May 2012

Jean Percy ,
J. C. Cunningham ,
J. M. Burke  and
I. S. Otvos
Jean Percy
Affiliation:
Forest Pest Management Institute, Canadian Forestry Service, Sault Ste. Marie, Ontario P6A 5M7
J. C. Cunningham
Affiliation:
Forest Pest Management Institute, Canadian Forestry Service, Sault Ste. Marie, Ontario P6A 5M7
J. M. Burke
Affiliation:
Forest Pest Management Institute, Canadian Forestry Service, Sault Ste. Marie, Ontario P6A 5M7
I. S. Otvos
Affiliation:
Pacific Forest Research Centre, Canadian Forestry Service, Victoria, British Columbia V8Z 1M5
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Extract

Western false hemlock looper, Nepytia freemani Munroe, is a cyclical pest in British Columbia which defoliates mainly Douglas-fir, Pseudotsugata menziesii (Mirb.) Franco, often near residential areas. Outbreaks were recorded from 1947 to 1949, 1963 to 1964, and 1972 to 1976; the current outbreak started in 1980 and, in 1982, covered 1,100 ha near Tappen, Canoe, Enderby, and Carquile (Ferris and Woensdregt 1983).

Type
Articles
Information
The Canadian Entomologist , Volume 115 , Issue 9 , September 1983 , pp. 1239 - 1241
Copyright
Copyright © Entomological Society of Canada 1983

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References

Ferris, R. L. and Woensdregt, H. A.. 1983. Western false hemlock looper in British Columbia. Pacif. For. Res. Centre Pest Leafl. FPL 59. 4 pp.Google Scholar
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Steinhaus, E. A. 1949. Principles of Insect Pathology. McGraw-Hill, New York and London. 757 pp.Google Scholar
Tripp, H. A., Ross, D. A., and Van Sickle, G. A.. 1975. Pacific Region. A. Rep. For. Insect Disease Surv., 1975. Can. For. Serv., Ottawa, 1976. pp. 75–87.Google Scholar