Like most plants, begonias will give clues when it's time to deadhead or pinch off dead flowers. If you're not sure, here's ...

Scientists have achieved a remarkable feat by enabling mouse eyes to perform part of the photosynthetic process using ...

Powdery mildew is a common garden fungus. This guide explains what causes it, which plants it affects, how to treat it, and ...

The glassy-winged sharpshooter carries a disease fatal to grapevines, imperiling the state’s $84.5 billion wine industry, ...

The bright blooms and scented leaves of geraniums are a summer plant staple. Learn how to deadhead spent geranium flowers to ...

Grape plants sold at several Costco locations in California may pose a serious threat to California vineyards and agriculture ...

The Plant Pick of the Week is a pair of double-petaled zinnias that bloom all summer and hardly ever get leaf disease.

Rose rosette disease now affects roses across much of Texas, including North Texas, where it became a major problem in mass landscape plantings by the late 1990s. Nearly all cultivated roses are ...

When viruses invade a plant, you might expect an all-out immune war. But new research published in Science shows that, much like in humans, too strong an immune response can actually do more harm than ...

Neil Sperry explains mulch volcanoes, what to do if ryegrass is taking over St. Augustine, and how to treat black spot fungus on roses.

The California Department of Food and Agriculture’s Pierce’s Disease Control Program (PDCP) is working with Costco Wholesale ...

Monterey County agricultural officials are urging residents who bought grapevines or fruit trees from Costco stores in Sand ...