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Field experiments in spraying apple orchards for the control of apple blotch

Auteur(s): Gunderson, A. J.
Date de publication: 1919.
Éditeur(s): University of Illinois Agricultural Experiment Station
Contributeur(s): Biodiversity Heritage Library
Collection(s): Biodiversity Heritage Library
Catégorie: Others
Le sujet(s): Apples--Diseases and pests. , Apple blotch

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