The bacterial pathogen Xanthomonas citri, which causes canker disease in citrus trees, activates selected parts of the fruit ...

The California Department of Food and Agriculture issued a citrus quarantine this week for northern San Diego County and part of Marine Corps Base Camp Pendleton. The quarantine was issued after state ...

Photo: Jeffrey B. Jones The dark spots on the leaves and fruit of the lemon tree are typical symptoms of citrus canker, which ...

A plant expert wants to remind gardeners that they must remain vigilant to prevent an insect infestation that will kill their citrus trees. “We have in California a fatal and incurable citrus disease, ...

Asian citrus psyllids (ACPs) carry a bacteria that causes a fatal citrus-tree disease called Huanglongbing, for which there is no cure. Photo courtesy of the USDA. The California Department of Food ...

Residents Encouraged to Get Involved in the Fight Against Pests and Diseases Threatening California’s Backyard Gardens and Commercial Agriculture SACRAMENTO, Calif.--(BUSINESS WIRE)--As invasive pests ...

Research using oak leaves on citrus trees to combat citrus greening has been fruitful so far. Some growers say it’s been a lifesaver, but others say it’s not enough. When Ben Bateman first started ...