A status report on forest insect conditions in the United states in 1958.
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| Format: | Texto biblioteca |
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1959
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| Subjects: | INSECTA, FORESTS, SCOLYTIDAE, PICEA, BUDS, LEPIDOPTERA, PINUS, CURCULIONIDAE, APHIDOIDEA, INFESTATION, INSECT CONTROL, FOREST PROTECTION, FORET, BOSQUES, BOURGEON, LUTTE ANTIINSECTE, PROTECTION DE LA FORET, YEMA (PLANTA), INFESTACION, CONTROL DE INSECTOS, PROTECCION FORESTAL, |
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