UC ANR is committed to providing an accessible and inclusive web experience for all users. If you encounter an accessibility barrier or need content in an alternative or remediated accessible format, please contact anraccessibility@ucanr.edu.
The bacterial disease, Huanglongbing (HLB), is potentially crippling to U.S. citrus. The Asian citrus psyllid, which spreads the bacterium, is now present in all U.S. citrus-producing states.
The Asian citrus psyllid (ACP), Diaphorina citri, and the devastating bacterium Candidatus liberibacter asiaticus (Clas) that it vectors that causes huanglongbing (HLB) disease, have become established in most of the citrus producing regions of the United States.
The outreach group has prepared resources available to all who wish to learn more about the HLB issue or would like to be enabled to give presentations regarding issues facing the citrus growing community.
Latest news in citrus research: "A Review of the Citrus Greening Research and Development Efforts Supported by the Citrus Research and Development Foundation: Fighting a Ravaging Disease" National Academies Press 4.12.18 "Growers feel the squeeze as countys citrus industry drops" Capital Press 11.
Ensuring clean plant material CCPP screenhouses and greenhouses Citrus growing regions such as Florida, California, Texas and Arizona have strict regulations in place to ensure that citrus trees are tested for pathogens to verify that they are free of disease before they are sold.
The snapshots on this page describe tools that are currently being investigated to manage the psyllid and HLB or to facilitate research with these goals.
The snapshots on this page describe methods currently under development that could detect HLB early in the infection process (weeks or a few months, rather than years). Technology is available Technology in progress Metabolite changes in the tree can help us detect Huanglongbing Dr.
The snapshots on this page describe various tactics that could be used to protect established orchards against HLB. Articles available as PDFs. Click on images to the right to download. If you have issues downloading any of the PDFs, please let us know.
The snapshots on this page describe various long-term strategies being developed to combat HLB that would require replanting citrus orchards. Articles available as PDFs. Click on images to the right to download. If you have issues downloading any of the PDFs, please let us know.
