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By: Forbes, Stephen Alfred,Edition:Publication info: Urbana, [Ill.], University of Illinois Agricultural Experiment Station, 1907Volume:Series:Holding Institution: University Library, University of Illinois Urbana ChampaignSubjects: Diseases and pests Illinois Scale-insects Shrubs TreesBHL Collections:
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By: Lochhead, W. - Ontario. Dept. of Agriculture.Edition:Publication info: [Toronto?, s.n.], 1900Volume:Series:Holding Institution: Canadiana.orgSubjects: Diseases and pests Fruit Scale-insectsBHL Collections: