Canadian Forest Service Publications
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Orgyia pseudotsuga (McDunnough) Douglas-fir tussock moth (Lepidoptera: Lymantriidae) 1984. Cunningham, J.C.; Shepherd, R.F. Pages 363-367 (Chapter 63) in Biological control programmes against insects and weeds in Canada, 1969-1980. Commonwealth Agricultural Bureaux, Farnham Royal, England.
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