The California Department of Food and Agriculture says a portion of Santa Clara County is now under quarantine for the Mediterranean fruit fly.
This follows the detection of two wild female flies in the city of San José.
The announcement also says if not stopped, Medflies can devastate fruits and vegetables grown in backyards and on local farms by reproducing and leaving larvae in produce, and the invasive flies can then spread to other regions.
A quarantine is a way to minimize damage and stop the risk of spread by restricting the movement of fruits and vegetables.
CDFA is working collaboratively with the United States Department of Agriculture and the Santa Clara County Division of Agriculture on this project.
This project is new and separate from the recently-eradicated Medfly infestation in Alameda County.