A quarantine expansion has been declared following the detection of the citrus disease Huanglongbing (HLB), or citrus greening, in two citrus trees in Colton. This is the first time the disease has been confirmed in Colton, and the detection came on the heels of the first detection in San Bernardino County in November 2019. The California Department of Food and Agriculture (CDFA) is working with the United States Department of Agriculture (USDA) and the San Bernardino County and Riverside County agricultural commissioners on this project.
The expanded 51 square mile quarantine area will link up with the existing quarantines in San Bernardino and Riverside Counties, putting more than 1,275-square miles of Southern California into the HLB quarantine area. The expanded portion is bordered on the north by West Fifth Street and East Fifth Street; on the east side of Highway 210 near Redlands by West Highland Avenue and San Timoteo Canyon Road in San Bernardino County, and on the south by Pico Visto Way in Riverside County.
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