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ALERT: Citrus Canker Confirmed in Georgia

On June 14th, 2022, the Georgia Department of Agriculture (GDA) announced that citrus canker has been confirmed within a commercial citrus grove in Decatur County, Georgia. This bacterial disease, which is subject to USDA-APHIS quarantine regulations, is widespread within Florida, and has also been found previously in Louisiana (2014), Texas…
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New Submission Protocol for Citrus Greening and Citrus Canker Testing – Spring 2022

Due to recent personnel changes within the UGA Plant Molecular Diagnostic Laboratory, we’ve had to make changes to the protocol for submission of citrus samples for viral and bacterial testing. Bulk samples mailed to the laboratory for routine testing for the bacterial diseases citrus greening (HLB) and citrus canker cannot…
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Citrus Greening AND Citrus Canker Testing for Commercial and Residential Citrus in 2021

As part of our 2021 disease survey efforts, we will begin accepting samples from within Georgia for free citrus greening and citrus canker testing on March 1st. Sample testing will be carried out by the UGA Plant Molecular Diagnostic Laboratory in Tifton, GA. Here’s the original announcement regarding this testing program: My…
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Hop stunt viroid Infecting Citrus Trees in Georgia, USA

By: Emran Ali, Tammy Stackhouse, Sumyya Waliullah, Jean Williams-Woodward, and Jonathan E. Oliver Is one of the world’s smallest pathogens harming your citrus plants? Citrus production within the state of Georgia (USA) is rapidly increasing each year. There are citrus plantings in backyards, production, and plant nurseries within at least…
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Citrus Greening Testing for Commercial and Residential Citrus

Good news for Georgia citrus growers! My citrus pathology extension program was awarded a grant from the 2019 USDA/AMS Specialty Crop Block Grant Program to conduct a “Statewide survey of citrus greening caused by Candidatus liberibacter asiaticus” in 2020 and 2021. This means that each year, UGA Cooperative Extension Personnel…
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UGA Citrus Greening Survey Results (Spring 2019)

Survey Information: In Spring 2019, a team of UGA extension specialists and agents initiated a survey of select residential and commercial citrus sites in southern and coastal Georgia to investigate the prevalence of Candidatus liberibacter asiaticus (CLas), the bacterium that causes citrus greening disease. Citrus leaf samples were collected during…
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