Citrus greening disease
Pelz-Stelinski, Kirsten S. Department of Entomology and Nematology, Citrus Research and Education Center, University of Florida, Lake Alfred, Florida.
- Symptoms and disease progression
- Links to Primary Literature
- Additional Readings
A devastating bacterial infection of citrus trees, also known as huanglongbing or yellow dragon disease, transmitted by psyllids (jumping plant lice). Citrus greening disease, which was first reported in Asia during the late 1800s, is the most economically important disease of citrus worldwide. The disease is also called huanglongbing (HLB), or yellow dragon disease, because of the appearance of yellow shoots on infected trees. It is endemic throughout Asia and Africa, and has spread more recently to citrus-growing areas of the Americas. Three bacteria are associated with citrus greening disease: Candidatus Liberibacter asiaticus (present in Asia, North America, and Brazil), C. L. americanus (present in Brazil), and C. L. africanus (present in Africa). The pathogens are vector-borne, fastidious (uncultured), phloem-limited, gram-negative alphaproteobacteria. Candidatus Liberibacter asiaticus (Las) is the primary bacterium associated with HLB. Following its initial discovery in Florida in August 2005, the incidence of HLB has reached nearly 100% in Florida citrus groves and has resulted in the loss of more than 60,000 commercial citrus acres and $1.3 billion (U.S. dollars). Within the United States, the disease is also found in Texas, California, Louisiana, South Carolina, and Georgia. Currently, there is no cure for citrus greening disease. See also: Agricultural science (plant); Bacteria; Bacteriology; Fruit; Fruit, tree; Grapefruit; Horticultural crops; Invasion ecology; Lemon; Lime (botany); Orange; Pathogen; Plant pathology
The content above is only an excerpt.
for your institution. Subscribe
To learn more about subscribing to AccessScience, or to request a no-risk trial of this award-winning scientific reference for your institution, fill in your information and a member of our Sales Team will contact you as soon as possible.
to your librarian. Recommend
Let your librarian know about the award-winning gateway to the most trustworthy and accurate scientific information.
AccessScience provides the most accurate and trustworthy scientific information available.
Recognized as an award-winning gateway to scientific knowledge, AccessScience is an amazing online resource that contains high-quality reference material written specifically for students. Its dedicated editorial team is led by Sagan Award winner John Rennie. Contributors include more than 9000 highly qualified scientists and 42 Nobel Prize winners.
MORE THAN 8500 articles and Research Reviews covering all major scientific disciplines and encompassing the McGraw-Hill Encyclopedia of Science & Technology and McGraw-Hill Yearbook of Science & Technology
115,000-PLUS definitions from the McGraw-Hill Dictionary of Scientific and Technical Terms
3000 biographies of notable scientific figures
MORE THAN 17,000 downloadable images and animations illustrating key topics
ENGAGING VIDEOS highlighting the life and work of award-winning scientists
SUGGESTIONS FOR FURTHER STUDY and additional readings to guide students to deeper understanding and research
LINKS TO CITABLE LITERATURE help students expand their knowledge using primary sources of information