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.

Master Gardeners answer, plus, how do you know if you’re watering enough in this drought? Question: I know we are in a serious drought this year and I want to save water, but I don’t want my plants to ...

Steve Nix is a member of the Society of American Foresters and a former forest resources analyst for the state of Alabama. Powdery mildew is a disease common in trees that appears as a white powdery ...

I had some beautiful columbines in pots that were killed by powdery mildew. I saved the seeds. Now I have 12 plants with signs of mildew. Should I let them go dormant, or fight the mildew with a ...

Q: Last year my grapes had such bad powdery mildew that even the grapes dried up and looked moldy and shriveled. I was told by the master gardeners at the farmer’s market that I needed to do something ...

Testing soil for powdery scab spore balls could help potato growers with field and variety selection. Three years of field trials had shown a significant link between the level of soil inoculum and ...

Dear Master Gardener: Some of my peony bushes have leaves that have turned powdery white. Should I take some action? Answer: It sounds like your peony bushes are infected with powdery mildew, a fungal ...

Due to California’s dry summers, powdery mildews are more prevalent in Marin County than many other leaf-infecting diseases. These fungi affect virtually all kinds of plants: cereals, grasses, ...