Calag Archive
Calag Archive
Controlling powdery mildew in field roses
Publication Information
California Agriculture 31(10):17-17.
Published October 01, 1977
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Abstract
Powdery mildew of rose, caused by the fungus Sphaerotheca pannosa, results in unsightly and frequently malformed leaves and flowers, and may reduce growth. Several new fungicides were evaluated for the control of powdery mildew in southern California commercial rose fields.