Department of Agriculture and Forestry, State of Louisiana - Mike Strain DVM, Commissioner

Baton Rouge, LA (June 28, 2013) – A bacterial disease that only affects citrus plants was confirmed on leaf samples collected from sweet orange trees growing in City Park in New Orleans. The laboratory test confirming the disease was conducted by the United States Department of Agriculture (USDA) Animal and Plant Health Inspection Service (APHIS). 

The disease, called citrus canker, poses no health risks to humans or animals. The disease is spread by wind-driven rain and by movement of infected plant material or contaminated tools and equipment. Transport of infected plant material is the primary means of spreading the citrus canker pathogen over long distances.

“This is the first report of citrus canker found in Louisiana. The disease has been present in Florida since 1995. The Louisiana Department of Agriculture and Forestry is conducting an ongoing survey with the USDA to detect any additional positive sites,” said Commissioner Mike Strain, D.V.M.

Three citrus trees in City Park have tested positive for the disease. The disease causes lesions on leaves, stems and fruit. Citrus canker causes leaves and fruit to drop prematurely. Eventually, trees will produce no fruit at all.  

“We certainly want to protect our citrus industry. Citrus is valued at between $5-6 million in the state. This is why it is imperative we determine where the disease is present and consider precautionary measures to keep it from spreading,” added Strain.

Citrus Canker Fact Sheet

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