Whether you’re a novice or avid gardener, discovering your greenery is dealing with a disease is never a pleasant surprise. One frequent problem that often pops up during the warmer months: powdery ...

One of the best parts about having a garden in the summer is watching your plants grow throughout the season. But if you’re out gazing at your garden one day and notice some white circular spots on ...

If you've started to notice tiny, white, powdery, or splotchy spots on your plants, you might be dealing with a common fungal disease known as powdery mildew. While it typically doesn't cause ...

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, ...

Powdery mildew appears as white or gray spots on roses, usually during warm, humid conditions. Catching infections early is key to stopping them from spreading by removing diseased parts and applying ...

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 ...

Answer: It sounds like your Veronica (speedwell) and Phlox plants have powdery mildew — a very common disease found on ornamental plants. Powdery mildews are host specific, so the powdery mildew ...

Dear Master Gardener: My begonias are growing in a small shady courtyard and have white mold on the leaves. Can I treat them to get rid of the mold? Answer: Powdery mildews are white to gray powdery ...

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, ...

Powdery mildew on sweet peas is one of the most common problems you'll have with these flowering favourites, especially as we head into late summer. In fact, you might find cases of powdery mildew on ...

Could it be possible? The temperature is going to be in the mid-80s through next Tuesday. Traditionally we start cooling off about mid-August and it looks like we may be doing just that. Now it’s time ...