plant pathogenic fungi Kitapları
Bu türde 3 kitap
Control work on the Dutch elm disease in Connecticut, New York and New Jersey, for the winter and spring of 1933-1934
United States. Bureau of Entomology and Plant Quarantine. Division of Plant Disease Eradication and Control
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Ribes eradication manual for use in the inland empire
United States. Bureau of Entomology and Plant Quarantine
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Protect grain crops from stem rust
United States. Division of Plant Disease Control
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