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You are here: Home / Microbes / Species Profiles / Citrus Greening
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Citrus Greening

Citrus greening - Invasive.orgScientific name: Candidatus Liberibacter asiaticus

Common name: Citrus greening, Huanglongbing (HLB), yellow shoot disease, yellow dragon disease

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Spotlights:


Native To: China (Polek 2007)

Date of U.S. Introduction: First discovered in Florida in 2005; in Louisiana in Jun 2008 (Jepson 2009); in California in Mar 2012

Means of Introduction: Possibly through illegally imported plant material; Asian citrus psyllid serves as a vector for citrus greening disease (Michaud 2004)

Impact: Bacterial disease that infects citrus trees, where it destroys fruit and causes decreased production (Polek 2007)

Current U.S. Distribution:

Quarantine:

Images:

Video:

  • Citrus Greening (or select Play button below)
    Texas A&M University. Texas AgriLife Extension Service. (YouTube).

Selected Internet Resources:

Federal Government

Multi-Agency Response to Devasting Citrus Disease
U.S. Department of Agriculture.
Controls

Huanglongbing (Citrus Greening): What ARS Is Doing
USDA. Agricultural Research Service.
Identification/Description; Photographs; Introduction History; Impacts; Distribution; Dispersion; Controls

Citrus Greening
USDA. Animal and Plant Health Inspection Service.
Identification/Description; Photographs; Introduction History; Impacts; Distribution; Dispersion; Legal Aspects

Citrus Greening
USDA. APHIS. Hungry Pests.
Identification/Description; Photographs; Impacts; Distribution; Controls

Save Our Citrus
USDA. APHIS. Hungry Pests.
Identification/Description; Photographs; Introduction History; Impacts; Distribution; Legal Aspects

Citrus Greening
ITAP.gov.
Identification/Description; Photographs; Introduction History; Impacts

Liberibacter asiaticus Article Citation Search - AGRICOLA Database
USDA. National Agricultural Library.
Research; Special Note: NAL Catalog Search (resources)

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State Government

Huanglongbing (HLB)/Citrus Greening Disease Information
Florida Department of Agriculture and Consumer Services. Plant Industry.
Identification/Description; Photographs; Introduction History; Impacts; Distribution; Dispersion; Controls; Legal Aspects

Citrus Greening - Huanglongbing (Yellow Dragon Disease): A New Threat to Florida Citrus
State of Florida. Broward County Parks and Recreation Division. Extension Education.
Photographs; Introduction History; Legal Aspects

Pest: Citrus Greening (PDF | 114 KB)
Louisiana Department of Agriculture and Forestry.
Photographs; Impacts; Distribution; Legal Aspects

Nursery Alert: Citrus Greening Disease and Asian Citrus Psyllid (Mar 2009; PDF | 148 KB)
Nevada Department of Agriculture.
Identification/Description; Photographs; Introduction History; Distribution

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University/Academic

Asian Citrus Psyllid (ACP) and Huanglongbing (HLB)
California Department of Food and Agriculture.
Identification/Description; Photographs; Impacts

Citrus Bacterial Canker Disease and Huanglongbing (Citrus Greening) (2007) - ANR Publication 8218
University of California. Agriculture and Natural Resources.
Identification/Description; Photographs; Introduction History; Impacts; Distribution; Dispersion; Controls

Asian Citrus Psyllid and Huanglongbing Disease Information (PDF | 22 KB)
University of California - Davis. Statewide Master Gardener Program.
Identification/Description; Introduction History; Impacts

Citrus Greening (Huanglongbing), Candidatus Liberibacter africanus, Candidatus Liberibacter asiaticus and Candidatus Liberibacter americanus
University of California - Riverside. Center for Invasive Species Research.
Identification/Description; Photographs; Introduction History; Impacts; Distribution

Citrus Greening (Huanglongbing)
University of Florida. IFAS. Citrus Research and Education Center.
Identification/Description; Photographs; Introduction History; Impacts; Dispersion; Controls; Legal Aspects

Citrus Greening (Huanglongbing) - Publications
University of Florida. IFAS. Electronic Data Information Source.
Identification/Description; Photographs; Impacts; Habitat; Dispersion

Citrus Greening – Another Threat to Agriculture
University of Florida. IFAS. Okeechobee County Extension Service.
Identification/Description; Photographs; Dispersion

Citrus Greening and its Psyllid Vector - Radcliffe's IPM World Textbook
University of Minnesota.
Identification/Description; Photographs; Impacts; Dispersion

Citrus Greening Disease (Huanglongbing) (2009; PDF | 39 KB)
Oregon State University. Extension Service.
Identification/Description; Life Cycle; Distribution

Economic Impacts of Greening on the Texas Citrus Industry (Feb 2007; PDF | 208 KB)
Texas A&M University. Center for North American Studies.
Impacts; Distribution

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International

Candidatus Liberibacter asiaticus - Invasive Species Compendium
Centre for Agricultural Bioscience International (CABI).
Taxonomy; Identification/Description; Photographs; Impacts; Life Cycle; Habitat; Distribution; Controls

Data Sheets on Quarantine Pests: Citrus greening bacterium (PDF | 52 KB)
European and Mediterranean Plant Protection Organization.
Taxonomy; Identification/Description; Impacts; Distribution; Dispersion; Controls; Special Note: Bibliography

Exotic plant pests: Citrus greening (Huanglongbing)
Queensland Department of Primary Industries and Fisheries.
Identification/Description; Photographs; Distribution; Dispersion; Controls

Huanglongbing disease of citrus trees - Pest Advisory Leaflet No. 45 (Jun 2005; PDF | 231 KB)
Secretariat of the Pacific Community. Plant Protection Service.
Identification/Description; Photographs; Impacts; Distribution; Dispersion; Controls

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Organizations

Citrus Huanglongbing: Understanding the Vector-Pathogen Interaction for Disease Management (Sep 2007)
American Phytopathological Society.
Identification/Description; Photographs; Introduction History; Impacts; Distribution; Dispersion

Is a Disease-Carrying Insect Killing Your Citrus Tree?
Citrus Research Board.
Identification/Description; Photographs; Introduction History; Impacts

Asian citrus psyllids (Sternorrhyncha: Psyllidae) and greening disease of citrus: a literature review and assessment of risk in Florida (PDF | 155 KB)
Florida Entomologist.
Taxonomy; Impacts; Distribution; Dispersion; Controls

Huanglongbing: A Destructive, Newly-Emerging, Century-Old Disease of Citrus (PDF | 1.8 MB)
Journal of Plant Pathology.
Taxonomy; Identification/Description; Photographs; Introduction History; Impacts; Distribution; Controls

Citrus Greening
Southern Plant Diagnostic Network.
Introduction History; Dispersion; Controls

Citations

Jepson, S.B. 2009. Citrus Greening Disease (Huanglongbing) (PDF | 39 KB). Oregon State University. Extension Service.

Michaud, J.P. 2004. Natural Mortality of Asian Citrus Psyllid (Homoptera: Psyllidae) in Central Florida. Biological Control.

Polek, M., G. Vidalakis, and K. Godfrey. 2007. Citrus Canker: Identification in the Field and in the Laboratory (Mar 2001; PDF | 46 KB) University of California. Division of Agriculture and Natural Resources. Pub. 8218.

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Last Modified: Jul 01, 2014
 
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