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    Apples -- Diseases and pests -- Biological control -- South Africa (1)
    Characterization (1)
    Cryopreservation (1)
    Dissertations -- Conservation ecology and entomology (1)
    Entomopathogenic nematodes (1)
    Insect nematodes -- South Africa (1)
    Mealybugs (1)
    Mealybugs -- Biological control -- South Africa (1)
    Pear -- Diseases and pests -- Biological control -- South Africa (1)
    Theses -- Conservation ecology and entomology (1)