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  1. Walnut husk-maggot [Rhagoletis suavis Loew] By Fred E. Brooks.
    By: Brooks, Fred Ernest,
    Publication info: Washington[Govt. print. off.]1921.
    Contributed by: Library of Congress
    Subjects: Diseases and pests  Walnut  Walnut hust-maggot  
    BHL Collections: Library of Congress
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