Some Costa Mesa residents are being notified citrus trees in their yards may need to be sprayed with insecticide or removed, after state agriculture officials confirmed the detection of harmful ...

Welcome to our tree column, “Ask your local arborist.” Each month, arborists from the Davey Tree Expert Company in Menlo Park discuss a tree-related topic from general care and planting tips to how ...

LAKE WALES — As Trevor Murphy pulls up to his dad’s 20-acre grove in one of the fastest-growing counties in the United States, he points to the cookie-cutter, one-story homes encroaching on the orange ...

Streetlights left on all night cause leaves to become so tough that insects cannot eat them, threatening the food chain, a study has found. “We noticed that, compared with natural ecosystems, tree ...

The California Department of Food and Agriculture Thursday declared a new citrus quarantine in Valley Center after detecting the citrus tree disease known as Huanglongbing — or citrus greening — in ...