Citrus is a $3.3 billion industry in California, and it is currently under threat from one of the tiniest insects and the disease it carries. 

This week on In the Garden with UC Master Gardeners, we will detail the threat of the ACP (Asian Citrus Psyllid) and HLB (Huanglongbing or Citrus Greening). If infected, the tree will die. The threat started by the simple practice of sharing and moving plant material between gardens (and even countries). Doing so can unknowingly spread the disease. Since the introduction, there are currently quarantine zones covering from the coast of LA and OC to the mountains and out into the Inland Empire. Pockets of agricultural land in San Diego County and Ventura Counties are impacted. The boundaries are expanding. ACP is known to infest CA trees from Kern County on east and south to the border. Hear from Jennifer Pelham, (former) Horticulture Advisor of UCANR (University of California Agriculture and Natural Resources) on this subject. For more immediate information on this including the quarantine zone maps, refer to the Master Gardener website at https://ucanr.edu/sites/ACP/ and www.californiacitrusthreat.org.

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