CDFA Plant Health

Asian Citrus Psyllid (ACP) Treatment Information

PEST HOTLINE: 1-800-491-1899

The Asian citrus psyllid (ACP) is a pest that acts as a carrier or vector spreading "huanglongbing" (HLB), a devastating disease of citrus trees. This bacterial disease is transmitted to healthy trees by the psyllid after it feeds on infected plant tissue.

Treatment Notification Information


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Huanglongbing PEP Information

PEST HOTLINE: 1-800-491-1899

The plant disease known as Huanglongbing (HLB) is believed to be caused by a phloem-restricted bacterium which is vectored by the Asian Citrus Psyllid (ACP).

CDFA YouTube

HLB Tree Removal in Southern California

Video documentation of California's first ever citrus tree diagnosed with the deadly Huanglongbing disease being removed from a Southern California residence in 2012.(3:12)

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