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Oakdale added to ACP quarantine in Stanislaus County, Ca.

Staff writer |
A new portion of Stanislaus County has been placed under quarantine for the Asian citrus psyllid (ACP) following the detection of one ACP in Oakdale.

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The quarantine zone measures 133 square miles, bordered on the north by E Sonora Road; on the south by Milnes Road; on the west by Stanislaus County Boundary; and on the east by Oakdale Irrigation District South Main Canal.

Maps for the new quarantine area in Oakdale and the existing quarantine area in Turlock in are available online at: www.cdfa.ca.gov/go/acp-maps.

The quarantine prohibits the movement of citrus and curry leaf tree nursery stock, including all plant parts except fruit, out of the quarantine area and requires that all citrus fruit be cleaned of leaves and stems prior to moving out of the quarantine area.

An exception may be made for nursery stock and budwood grown in USDA-approved structures which are designed to keep ACP and other insects out. Residents with backyard citrus trees in the quarantine area are asked not to transport or send citrus fruit or leaves, potted citrus trees, or curry leaves from the quarantine area.

ACP county-wide quarantines are now in place in Imperial, Los Angeles, Orange, Riverside, San Bernardino, San Diego, Santa Barbara, Tulare and Ventura Counties, with portions of Alameda, Fresno, Kern, Madera, Merced, San Benito, San Francisco, San Joaquin, San Luis Obispo, San Mateo, Santa Clara, and Stanislaus counties also under quarantine.

The ACP is an invasive species of grave concern because it can carry the disease huanglongbing (HLB), also known as citrus greening. All citrus and closely related species, such as curry leaf trees, are susceptible hosts for both the insect and disease.

There is no cure for HLB and once a tree becomes infected, the diseased tree will decline in health and produce bitter, misshaped fruit until it dies. In California, HLB has only been detected in 2012 and 2015 on residential properties in Los Angeles County. This plant disease does not affect human health.


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