Controlling powdery mildew in field roses
AuthorsAlbert O. Paulus
Authors AffiliationsAlbert O. Paulus is Extension Plant Pathologist, University of California, Riverside; Jerry Nelson is Staff Research Associate, University of California, Riverside; Otis Harvey is Farm Advisor, Riverside County.
Hilgardia 31(10):17-17. DOI:10.3733/ca.v031n10p17. October 1977.
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.
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