Fulton, H. G., Dominion Entomological Laboratory Agassiz, B.C., Canada
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Journal of the Entomological Society of British Columbia Vol. 43 (1947): Proceedings of the Entomological Society of British Columbia - Proceedings
Natural control of the European pea moth Laspeyresia nigricana on Sumas Prairie, B.C. (Lepidoptera Olethreutidae).
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