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  1. 241
    Beziehungen zwischen Entomophagen und ihrer Beute als Grundlage der biologischen Schädlingskontrolle

    Book Chapter
  2. 242
    Naturgeschichte der schädlichen und nützlichen garteninsekten und die bewährtesten mittel zur vertilgung der ersteren

    Book
  3. 243
    Karantinnye i blizkie k nim vidy koktsid (Coccidae) SSSR
    Karantinnye i blizkie k nim vidy koktsid (Coccidae) SSSR
    Карантинные и близкие к ним виды кокцид (Coccidae) СССР = [Coccidae of quarantine value for U.S.S.R and their allied species] /

    Book
  4. 244
    La lucha contra los insectos ..
    by García Mercet, Ricardo
    Published 1923

    Book
  5. 245
    Kertomus tuhoeläinten esiintymisestä suomessa Vuosina 1926 ja 1927.
    by Hukkinen, Yrjö
    Published 1936

    Book
  6. 246
    Circular
    Published 1923

    Journal
  7. 247
    A textbook of medical entomology /
    by Patton, Walter Scott, 1876-
    Published 1913

    Book
  8. 248
    Technical bulletin

    Journal
  9. 249
    Using beneficial insects : garden soil builders, pollinators, and predators /
    by Massingham, Rhonda, 1959-
    Published 1991

    Book
  10. 250
    Die grundfragen und gesetzmässigkeiten der land- und forstwirtschaftlichen zoologie, insbesondere der entomologie, unter mitwirkung
    by Friederichs, Karl, 1878-
    Published 1930

    Book
  11. 251
    Injurious and beneficial insects of California,
    Published 1913

    Book
  12. 252
    Insect of the month

    Journal
  13. 253
    Entomología agrícola del Perú; manual para entomólogos, ingenieros agrónomos, agricultores y estudiantes de agricultura,
    by Wille, Johannes E., 1892-
    Published 1943

    Book
  14. 254
    Guide to the study of insects and a treatise on those injurious and beneficial to crops : for the use of colleges, farm-schools, and agriculturists /

    Book
  15. 255
    Annual report of the State Entomologist of Indiana
    Published 1908

    This item is not available through BorrowDirect. Please contact your institution’s interlibrary loan office for further assistance.
    Serial
  16. 256
    Injurious insects of the farm and garden /
    by Treat, Mary, 1830-1923
    Published 1892

    Book
  17. 257
    Eight annual report on the noxious beneficial, and other insects of the state of Missouri : made to the State Board of Agriculture pursuant to an appropriation for this purpose from the Legislature of the State /

    This item is not available through BorrowDirect. Please contact your institution’s interlibrary loan office for further assistance.
    Book
  18. 258
    Revue de pathologie végétale et d'entomologie agricole de France

    This item is not available through BorrowDirect. Please contact your institution’s interlibrary loan office for further assistance.
    Journal
  19. 259
    Optical manipulation of pests and beneficial arthropods /
    Published 2020

    Book
  20. 260
    Special bulletin - Michigan State College, Agricultural Experiment Station

    This item is not available through BorrowDirect. Please contact your institution’s interlibrary loan office for further assistance.
    Serial
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