PACIFIC NORTHWEST NURSERY IPM
Diseases
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Photo: Rosetta, OSU
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PACIFIC NORTHWEST NURSERY IPM Diseases |
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azalea
leaf and flower gall |
Powdery mildew on dogwood Erysiphe pulchra (formerly Microsphaera puchra) and Phyllactinia guttata can produce powdery mildew infections on dogwood. The images presented here show very early symptoms. Useful information on the biology, diagnosis, and management of powdery mildew can be found at the Online Guide to Plant Disease Control. More advanced symptoms and additional management information can be found at the University of Kentucky Nursery Update link. Information on powdery mildew resistance in various dogwood cultivars is available at Auburn Universities Highlights of Agricultural Research: Meet the Resistance site. |
Beginning infection of powdery mildew on leaf
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