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  1. The Coccidae of California : a descriptive list of the different scale insects found in and reported from California / by Edward K. Carnes.
    By: Carnes, Edward K. - California.
    Publication info: Sacramento :[State Horticultural Commission],1906.
    Contributed by: University of California Libraries (archive.org)
    Subjects: California  Coccidae  Insect pests  Scale-insects  
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  2. The cottony maple scale in Illinois / by S.A. Forbes.
    By: Forbes, Stephen Alfred,
    Publication info: Urbana, [Ill.] :University of Illinois Agricultural Experiment Station,1907.
    Contributed by: University of Illinois Urbana Champaign
    Subjects: Diseases and pests  Illinois  Scale-insects  Shrubs  Trees  
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  3. The San José and other scale insects prepared for the use of fruit growers and scale inspectors / by Wm. Lochhead.
    By: Lochhead, William, - Ontario.
    Publication info: [Toronto? :s.n.],1900
    Contributed by: Canadiana.org (archive.org)
    Subjects: Diseases and pests  Fruit  Scale-insects  
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