Calag Archive
Calag Archive
Controlling rose powdery mildew in field and nursery
Publication Information
California Agriculture 25(5):10-11.
Published May 01, 1971
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Abstract
Powdery mildew of rose, caused by the fungus, Sphaerotheca pannosa, results in unsightly leaves and flowers and may cause reduced growth. Recently, several new systemic and non-systemic fungicides have become available. These studies were initiated to evaluate these new materials for powdery mildew control in southern California.