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By: Hewitt, C. Gordon (Charles Gordon), - Canada. Division of Entomology. - Dominion Experimental Farms and Stations (Canada)Edition:Publication info: Ottawa, Govt. Print. Bureau, 1911Volume:Series:Holding Institution: Canadiana.orgSubjects: Agricultural pests Canada Control Destructive Insect and Pest Act Insect pests Law and legislation Nursery stockBHL Collections: