UCCE Master Gardeners of Orange County
University of California
UCCE Master Gardeners of Orange County

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Citrus Disease in Orange County

HLB disease was detected in Los Angeles County in 2012 in backyard citrus.  Since then, several trees with the disease have been found in Orange County.  Home growers can help stop the spread of the disease by not moving citrus trees to other locations, not sharing budwood, and by inspecting their trees. 

The link below will help you identify the pest and detect signs of the disease in your citrus trees.  It also tells you how to treat your trees if the psyllid is present and has a map of quarantine areas.

Asian Citrus Psyllid Information


If you can’t find the answer on the site, don’t despair! We also have the capacity to personally assist you through our hotline.  Just contact us by email or by phone (voicemail) at 949 809-9760 and we will respond to your inquiry.
UCCE Master Gardeners of Orange County, California

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