Currently, there are two conditionally approved products labeled for the prevention and treatment of NWS maggots (myiasis) in cattle.
Although the United States eradicated this fly in 1966 and eliminated a small outbreak in the Florida Keys in 2017, the fly is once again a concern as it continues its northward migration towards the Texas border. This steady migration has prompted the FDA’s Center for Veterinary Medicine (CVM) to quickly identify products to prevent and treat NWS myiasis if it reaches US livestock.
