US USDA ramps up response to New World screwworm outbreak in Texas

The U.S. Department of Agriculture confirmed two additional New World screwworm infections in Texas, bringing the total to four confirmed cases involving a calf in La Salle County, a dog in Andrews County, and earlier incidents in other counties. The parasite, whose larvae feed on living tissue, has been absent from the United States for nearly six decades.

Federal and state officials have activated a multi‑pronged response: a 20‑kilometre quarantine around each case, expanded trapping, wildlife surveillance, and the release of roughly 10 million sterile male flies each week from facilities in Texas, Panama and Mexico. USDA Secretary Brooke Rollins announced the opening of a sterile‑fly production plant at Moore Air Base and cited a billion‑dollar investment to eradicate the pest.

The outbreak has sparked political friction in Texas, with Agriculture Secretary Brooke Rollins defending the federal response against criticism from state officials. Economists warn the screwworm could keep beef prices elevated; retail beef is already at a record $9.64 per pound, up 13 % year‑over‑year. Industry leaders note the added labor and treatment costs for ranchers and caution that a larger spread could further strain the cattle supply chain.

Authorities continue to monitor the situation, urging livestock owners to check animals for wounds, maggots or unusual behavior and to report any suspected infestations immediately.