The Asian citrus psyllid was first detected in California in 2008 and is now confirmed in 13 counties, including all of Southern California and as far north as Santa Clara County.* Thus, the psyllid is established near, or threatening much of, California's commercial, nursery, and residential citrus. When the pest is found, quarantines are put in place to restrict the movement of citrus plants and plant clippings in order to limit spread of the pest.

There are things that residents and maintenance gardeners can do to help minimize the spread of this pest and HLB.

To read more about ACP and HLB, click here. 

*http://www.californiacitrusthreat.org/ 

Asian citrus psyllid adult, and white wax tubules from yellowish nymphs.

Asymmetrical yellow mottling of leaves and odd shape and greening of fruit, symptoms of Huanglongbing (citrus greening).