Discontinued series: although this series no longer publishes new content, the published titles listed here remain available.

Book titles in this series

  1. Die Rübenfliege

    Pegomyia hyoscyami Pz

    Authors:
    • H. Bremer
    • O. Kaufmann
    • Copyright: 1931

    Available Renditions

    • Soft cover
    • eBook

  3. Der Apfelblattsauger

    Psylla mali Schmidberger

    Authors:
    • Walter Speyer
    • Copyright: 1929

    Available Renditions

    • Soft cover
    • eBook