Biological control programmes against insects and weeds in Canada, 1969-1980
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Format: | Texto biblioteca |
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Slough (UK) Commonwealth Agricultural Bureaux
1984
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Subjects: | PEST CONTROL, PEST INSECTS, WEED CONTROL, BIOLOGICAL CONTROL, PESTS OF PLANTS, FOREST TREES, LUTTE ANTIRAVAGEUR, INSECTE NUISIBLE, DESHERBAGE, LUTTE BIOLOGIQUE, CONTROL DE PLAGAS, INSECTOS DANINOS, ESCARDA, CONTROL BIOLOGICO, RAVAGEUR DES PLANTES, ARBRE FORESTIER, PLAGAS DE PLANTAS, ARBOLES FORESTALES, |
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