USDA breaks ground on New World Screwworm sterile fly facility in Texas. So far, efforts have kept NWS out of U.S.

The NWS blowfly has not crossed into the U.S.
(USDA photo)

As part of U.S. efforts to keep the aggressive New World Screwworm out of the country, U.S. Department of Agriculture Secretary Brooke Rollins celebrated the groundbreaking of the USDA's domestic sterile fly production facility last week at the Moore Air Base in Edinburg, Texas, reports Jennifer Carrico of Progressive Farmer.

The new facility will add to the USDA's ongoing arsenal aimed at keeping the blowfly and its flesh-eating larvae from entering the U.S. from Mexico and infecting livestock, other warm-blooded wildlife, pets and even humans.

"Rollins said a year ago, the models showed NWS would have moved into the U.S. by now, but it has not and keeping the pest out has been a huge undertaking for all involved," Carrico writes. "Since last July, USDA has monitored over 7,000 fly traps on the border and has collected over 51,000 fly specimens, with all being negative for NWS."

Sigrid Johannes, senior director of government affairs for the National Cattlemen's Beef Association, told reporters, "The facility in south Texas will help give us a high enough inventory of sterile flies to fight NWS and hopefully eradicate it."

As NWS has moved closer to the U.S., with the closest case just 90 miles away, treatment has been top of mind for U.S. livestock producers. 

The flesh-eating larvae are not "a food safety concern, but rather an animal welfare concern. There would also be immediate trade implications for live animals," Carrico explains. The USDA also has a "Screwworm Response Playbook that outlines science-based strategies for officials at the federal, state, and local levels with how to coordinate response operations."