The issue of antibiotic resistance, that is, of antibiotics no longer working for bacterial infections in humans is a huge concern. So why are we squandering the antibiotic oxytetracycline on orange trees sickened with the disease citrus greening when a recent study by University of Florida researchers says it doesn't work?
The US Environmental Protection Agency gave permission for large-scale agricultural use of 2 antibiotics (streptomycin and oxytetracycline) to try to combat the bacterial infection that is destroying vast numbers of orange trees in Florida, Texas, and other states. However, the 2 antibiotics are also used to treat a number of bacterial infections in humans. And the latest development is that a study found that when oxytetracycline was sprayed on citrus trees for 6 months according to manufacturer's directions, it was no more effective than spraying water against the harmful bacteria (Candidatus Liberibacter asiaticus).
Public health advocates, the FDA (Food and Drug Administration), and the CDC (Centers for Disease Control and Prevention) were all opposed to the EPA's antibiotic approvals for the citrus tree disease. They are very concerned that such large scale use could result in the development of antibiotic resistant bacteria, thus making these antibiotics useless in treating human illnesses. The CDC states that each year in the U.S., at least 2 million people get an antibiotic-resistant infection, and at least 23,000 people die.
Keep in mind that the European Union has banned the agricultural use of both oxytetracycline and streptomycin. Brazil has also banned these 2 antibiotics for agricultural use, and there citrus growers are battling the same citrus greening bacteria in citrus groves.
Steven Roach, a senior analyst for the advocacy group Keep Antibiotics Working has said: “To allow such a massive increase of these drugs in agriculture is a recipe for disaster. It’s putting the needs of the citrus industry ahead of human health.”