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By: Chittenden, F. H. (Frank Hurlbut), - United States. Bureau of Entomology. - United States. Department of Agriculture.Edition: 2d ed.Publication info: Washington, D.C, U.S. Dept. of Agriculture, Bureau of Entomology, 1906Volume: ser.2:no.63Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects: Agricultural pests Control Crops Diseases and pests Maggots Roots (Botany)BHL Collections:
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By: Gibson, Arthur, - Canada. Division of Entomology.Edition:Publication info: Ottawa, Dept. of Agriculture, [1918?]Volume:Series:Holding Institution: Canadiana.orgSubjects: Canada Insect pests MaggotsBHL Collections: