by Freeman Weiss , R. A. St. George , United States. Department of Agriculture. National Agricultural Library.
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Factors in the inception and development...
Powdery mildew of ornamental plants
Catalase, hydrogen-ion concentration, an...
A flower-spot disease of cultivated azal...
Viruses described primarily of leguminou...
Viruses, virus diseases, and similar mal...
Boxwood Gardens
Holly, yew & box
Boxwood
Canterbury boxwood
Performance records of woody plants in t...
Garden craftsmanship in yew and box