The UC ANR web site Asian Citrus Psyllid Distribution and Management  http://ucanr.edu/sites/ACP/Distribution_of_ACP_in_California/ provides a zoomable web map that shows the quarantine boundaries around the HLB-infected trees (found and removed) in southern California.

If you click on the layers drop down arrow, you can turn off the ACP layer and check the box for the newly released Diaphorencyrtus parasitic wasp and see where it has been released to help reduce Asian citrus psyllid in residential areas (you can also view the Tamarixia wasp).  http://ucanr.edu/sites/ACP/Distribution_of_ACP_in_California/