Report: Oxytetracycline Residue Study
Oxytetracycline is a commonly used pesticide in Washington State and other regions to control the disease fire blight (Erwinia amylovora) on commercial apples and pears. It has been allowed for use in organic orchards as well since the establishment of the National Organic Program in 2002, and prior to that by a number of certifiers in the US. The National Organic Standards Board (NOSB) voted for an expiration of the use of oxytetracycline (OTC) in organic orchards starting in October 2014. A petition was submitted to the NOSB by the tree fruit industry in 2012 to extend that expiration date for 2 or 3 more years to allow research underway on non-antibiotic control measures to be completed and for the results to be made available to growers.