Citrus Disease Quarantine

Citrus Disease Quarantine

San Bernardino

A Detection of the Citrus Disease Huanglongbing (HLB)—or citrus greening—in San Bernardino County by the California Department of Food and Agriculture (CDFA) extended the quarantine already in place for the disease in parts of Los Angeles County to San Bernardino. HLB is a bacterial disease that affects the vascular system of citrus trees and plants. It does not pose a threat to humans or animals.  However, once a tree is infected, there is no cure. It will produce bitter and misshaped fruit and will die within a few years.    CDFA triggered the recent warning when HLB was found in a single citrus tree in an unincorporated area of San Bernardino County near the community of Montclair marking the first time the plant disease was detected in the county.   The impacted tree was marked for removal and a treatment program for citrus trees initiated to knock down HLB infestations within 400 meters of the find site. This effort is essential to protect surrounding citrus from this deadly disease. The impacted portion of San Bernardino County includes approximately 93 square miles of San Bernardino County. It is bordered on the north by I-210; on the south by Chino Airport; on the west by Highway 57; and on the east by Ontario International Airport and is contiguous to an existing quarantined area of Los Angeles County. Parts of Orange and Riverside Counties are also under quarantine.  Once an area is quarantined it prohibits the movement of all citrus nursery stock or plant parts out of the impacted area. Provisions exist to allow the movement of commercially cleaned and packed citrus fruit. However, fruit that is not commercially cleaned and packed, including residential citrus, such as oranges, lemons, grapefruits, and kumquats, must not be moved from the property on which it is grown, although it may be processed and/or consumed on the premises.  CDFA is working with the United States Department of Agriculture (USDA) and the San Bernardino County and Los Angeles County agricultural commissioners to prevent the spreading of HLB. IF you have citrus plants on your property and suspect the disease call the CDFA hotline at 1-800-491-1899.

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