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Growers And Homeowners Can Help Detect Citrus Disease

Date:
November 15, 2005
Source:
American Phytopathological Society
Summary:
Plant pathologists from The American Phytopathological Society (APS) report that citrus greening is spreading faster than expected and encourage growers and homeowners to aid in the detection process by alerting the appropriate agricultural officials if they suspect they have infected trees. Citrus greening, also known as huanglongbing, was recently discovered in samples collected from trees in South Florida.

Symptoms of citrus greening.
Credit: Image courtesy J. M. Bové and M. Garnier

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Plant pathologists from The American Phytopathological Society (APS) report that citrus greening is spreading faster than expected and encourage growers and homeowners to aid in the detection process by alerting the appropriate agricultural officials if they suspect they have infected trees. Citrus greening, also known as huanglongbing, was recently discovered in samples collected from trees in South Florida.

Although citrus greening is not expected to have a major impact on the supply of citrus fruit this year, it is important that the spread of this disease be carefully monitored and reported, say plant pathologists from APS.

To date, citrus greening has only been detected in Florida, but residents of all citrus growing areas in the U.S. are urged to report possible infections. Residents in Florida should call the Florida Department of Agriculture's toll-free helpline at 1.800.282.5153. Other states should contact their local state department of agriculture for information. Because citrus greening is not limited to just one outbreak, plant pathologists from APS report that eradication is probably not feasible at this point.

Citrus greening is a bacterial disease that can infect all types of citrus species. The bacterium that causes this disease is spread by an insect, the citrus psyllid.

Citrus greening affects the nutrient conducting system of citrus plants causing the infected trees to yellow, decline, and possibly die within a few years. The name "huanglongbing" means "yellow dragon" which is descriptive of the yellow sectors of infected trees. The symptoms of citrus greening usually include a blotchy mottle and leaf yellowing that spreads throughout the tree with lopsided fruit that fail to color properly.

Citrus greening is often hard to detect because its symptoms are almost identical to those that occur from nutritional deficiencies. Additionally, trees infected with citrus greening will usually not express any symptoms until three to eight months after infection.

###

The American Phytopathological Society (APS) is a non-profit, professional scientific organization. The research of the organization's 5,000 worldwide members advances the understanding of the science of plant pathology and its application to plant health.



Story Source:

The above story is based on materials provided by American Phytopathological Society. Note: Materials may be edited for content and length.


Cite This Page:

American Phytopathological Society. "Growers And Homeowners Can Help Detect Citrus Disease." ScienceDaily. ScienceDaily, 15 November 2005. <www.sciencedaily.com/releases/2005/11/051110085856.htm>.
American Phytopathological Society. (2005, November 15). Growers And Homeowners Can Help Detect Citrus Disease. ScienceDaily. Retrieved November 27, 2014 from www.sciencedaily.com/releases/2005/11/051110085856.htm
American Phytopathological Society. "Growers And Homeowners Can Help Detect Citrus Disease." ScienceDaily. www.sciencedaily.com/releases/2005/11/051110085856.htm (accessed November 27, 2014).

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