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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, ...

Q. Is there any way you could help in figuring out what is wrong with our lilac? – C.B. via email. A. Lilacs are quite susceptible to a fungal disease called powdery mildew, which causes a ...

It creeps into the garden on humid summer nights, coating leaves with ghostly white: powdery mildew. From bee balm to phlox and lilacs to apple trees, hundreds of common garden plants can be ...

Powdery mildews are a common, widespread and an easily recognizable disease that, when conditions are right, can infect a variety of trees (except conifers), shrubs, perennials, annuals, vegetables, ...

Powdery mildew is a fungal disease affecting many plants, causing a white or gray coating on leaves and slowing growth. The fungus thrives in warm, dry weather with high humidity, especially in ...

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 ...

This column is written by the Master Gardeners of Yolo County each month. It provides answers to selected questions recently asked by Yolo County gardeners. “Ask a Master Gardener” fields questions ...

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, ...

Dr. Elizabeth Yuko is a bioethicist and adjunct professor of ethics at Fordham University. She has written for The New York Times, The Washington Post, The Atlantic, Rolling Stone, CNN & Playboy. May ...