Hilgardia
Hilgardia
Hilgardia
University of California
Hilgardia

Controlling powdery mildew and rust in roses

Authors

Albert O. Paulus
Jerry Nelson

Publication Information

Hilgardia 42(4):15-15. DOI:10.3733/ca.v042n04p15. July 1988.

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Abstract

Powdery mildew is undoubtedly the most widespread disease of roses. The causal fungus, Sphaerotheca pannosa var. rosae, appears as a white or gray powdery or mealy coating on the leaves, tender stems, and flower buds. It distorts and discolors those areas, causes defoliation, and reduces plant vigor.

Paulus A, Nelson J. 1988. Controlling powdery mildew and rust in roses. Hilgardia 42(4):15-15. DOI:10.3733/ca.v042n04p15
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