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  1. Larch sawfly conditions in the Lake States in 1953 : a reconnaissance survey /
    By: Beckwith, L. C. - Lake States Forest Experiment Station (Saint Paul, Minn.)
    Publication info: St. Paul, Minn. :U.S. Dept. of Agriculture, Forest Service, Lake States Forest Experiment Station,1954.
    Contributed by: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Forest insects  Lake states  Larch sawfly  
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  2. Larch sawfly conditions in the Lake States in 1954 : a reconnaissance survey / by L.C. Beckwith.
    By: Beckwith, L. C. - Lake States Forest Experiment Station (Saint Paul, Minn.)
    Publication info: St. Paul, Minn. :U.S. Dept. of Agriculture, Forest Service, Lake States Forest Experiment Station,1955.
    Contributed by: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Diseases and pests  Forests and forestry  Lake states  Larch sawfly  
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  3. The large larch saw-fly (Nematus erichsoni)
    By: Hewitt, C. Gordon
    Publication info: London? :s.n.,1908?
    Contributed by: Canadiana.org (archive.org)
    Subjects: Control  Diseases and pests  Insect pests  Larch  Larch sawfly  
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  4. The large larch sawfly (Nematus erichsonii) with an account of its parasites, other natural enemies and means of control /
    By: Hewitt, C. Gordon - Canada. - Dominion Experimental Farms and Stations (Canada)
    Publication info: Ottawa :Govt. Print. Bureau,1912.
    Contributed by: Canadiana.org (archive.org)
    Subjects: Control  Diseases and pests  Insect pests  Larch  Larch sawfly  
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  5. Observations on the parasitism of Isaria farinosa (Dicks.) Fr. with special reference to the larch sawfly (Nematus erichsonii Hartig.)
    By: Güssow, H. T.
    Publication info: Ottawa :Printed for the Royal Society of Canada,1911.
    Contributed by: Canadiana.org (archive.org)
    Subjects: Control  Insect pests  Larch sawfly  Parasites  
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