Establishment and management of protective plantation - 9, the main forest pests and pest control measures.
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| Format: | Texto biblioteca |
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1968
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| Subjects: | WINDBREAK TREES, PROTECTIVE FORESTS, INSECT CONTROL, PEST INSECTS, TREES, EXTENSION ACTIVITIES, FORESTS, USES, ARBRE BRISE VENT, FORET DE PROTECTION, LUTTE ANTIINSECTE, INSECTE NUISIBLE, ARBRE, VULGARISATION, FORET, ARBOLES ROMPEVIENTOS, MONTE DE PROTECCION, CONTROL DE INSECTOS, INSECTOS DANINOS, ARBOLES, EXTENSION, BOSQUES, UTILISATION, USOS, |
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