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, ...

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 ...

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 ...

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 ...

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 ...

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, 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 ...

Willamette Valley Vineyards is using a special band of ultraviolet light, called UVC, to help preserve it’s prized wine grapes. “In our research, we found that the special band of light also kills ...

CORVALLIS – Mild winter weather will most likely coax roses into bloom early, which means dealing with the usual diseases and pests earlier, too. When it comes to one of the country’s most popular ...