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268: The common leaf rust cultivated roses, caused by Phragmidium mucronatum (Fr.) Schlecht

268: The common leaf rust cultivated roses, caused by...

Cochrane, Vincent W.

Cornell university, 1945

monografia | Testo

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690: The black spot disease of roses, and its control under greenhouse conditions

690: The black spot disease of roses, and its control...

Cornell university, 1938

monografia | Testo

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785: Control of powery mildew of roses in the greenhouse

785: Control of powery mildew of roses in the greenhouse

McClellan, Wilbur Dwight

Cornell university, 1942

monografia | Testo

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