Tag Archives: plant pathology

Current Status of Citrus Greening in Florida

Here’s the latest on attempts to deal with citrus greening (huanglongbing) in Florida from TheLedger.com at http://www.theledger.com/article/20120410/NEWS/120419953?Title=Scientist-Remedy-for-Citrus-Greening-Disease-Fails-to-Improve-Productivity). The most troubling bit of news in the article is that University of Florida plant pathologist Jim Graham “cited research by U.S. Sugar, also … Continue reading

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New Online Citrus Disease Identification Tool

The U.S.D.A.’s Center for Plant Health Science and Technology has added a new online tool to aid in the identification of 24 diseases and common disorders of citrus. This new site contains an interactive key for identification based on symptoms as well … Continue reading

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Disease Du Jour (April 11)

Received to e-mails today from folks wanting to know what they can do about quince rust on mayhaws. At this point, since the disease is already expressing symptoms, there’s not much that can be done. The spores that are produced … Continue reading

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New Louisiana Plant Pathology Fact Sheets

Just out, five new fact sheets in the Louisiana Plant Pathology series.     These can be viewed at http://www.lsuagcenter.com/en/communications/publications/whats_new/. To see previous fact sheets, please go to http://tinyurl.com/3yu6g8r  

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Sweet Orange Scab (Update Oct. 11)

Sweet orange scab has now been confirmed on citrus (leaves and fruit) from 15 parishes across southern Louisiana and four counties in Texas including two in the Rio Grande Valley, the main citrus producing area of Texas. The widespread occurrence of the … Continue reading

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Sweet Orange Scab Now in Louisiana

On August 20, sweet orange scab (SOS), caused by Elsinoë australis, was confirmed on a residential citrus (lime) tree in the Algiers section of Orleans Parish.  According to USDA-APHIS PPQ, “under the International Plant Protection Convention standards, Elsinoë australis is considered … Continue reading

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Diseases in the News: Thousand Cankers Disease Found in Tennessee

The Thousand Cankers Disease (TCD) of walnuts, particularly black walnuts, that was previously thought to occur only in the western U.S., was recently found near Knoxville, Tennessee. Based on the relatively widespread distribution of the disease in the surrounding area and … Continue reading

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