The California Department of Food and Agriculture says it has expanded the sweet orange scab quarantine in Santa Ana area of Orange County.
Sweet orange scab is caused by the fungus Elsinöe australis. Infected fruit has a corky appearance, and the fungus can stunt young nursery trees or new field plantings and cause premature fruit drop.
The USDA’s Animal and Plant Health Inspection Service and the CDFA expanded the quarantine September 2024 due sweet orange scab detections in plant tissue samples collected from residential properties in Riverside County.
A map of the expanded boundary can be found online.
