Crop protection activities, February to December 1989
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| Main Authors: | , |
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| Format: | Texto biblioteca |
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(np)
Feb
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| Subjects: | PEST INSECTS, INSECT CONTROL, BIOLOGICAL CONTROL, TRIAL METHODS, PEST RESISTANCE, CROP LOSSES, INSECTE NUISIBLE, LUTTE ANTIINSECTE, INSECTOS DANINOS, CONTROL DE INSECTOS, LUTTE BIOLOGIQUE, METHODE D'ESSAI, RESISTANCE AUX ORGANISMES NUISIBLES, PERTE DE RECOLTE, CONTROL BIOLOGICO, METODOS DE ENSAYO, RESISTENCIA A LAS PLAGAS, PERDIDAS DE LA COSECHA, |
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