Learn how to identify, prevent, and treat powdery mildew with this guide. Discover organic and chemical treatment options, as well as management strategies for long-term control.

Your description sounds a lot like powdery mildew, which is an easy disease to recognize, and it is common in the landscape at this time of year. It can be a problem that shows up on annuals, ...

DEAR GARDEN COACH: I have roses that all had mildew, all year, even though they were all labeled “disease resistant.” I put systemic fertilizer and did some spray and it didn’t help. It did not keep ...

UC Davis researchers have uncovered important genetic clues about the pathogen that causes grape powdery mildew, among the most destructive vineyard pests throughout California and the world.

Question: What is this white coating on the leaves of my chokecherry tree, and what would you recommend to get rid of it? Answer: The likely culprit for those symptoms at this time of year in New ...

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Powdery mildew, predominantly caused by Podosphaera macularis, continues to be a critical challenge for hop (Humulus lupulus) growers, affecting both yield and quality. The disease exhibits a complex ...

DEAR GARDEN COACH: I have roses that all had mildew, all year, even though they were all labeled “disease resistant.” I put systemic fertilizer and did some spray and it didn”t help. It did not keep ...