The U.S. Department of Agriculture in May suspended the transport of live cattle and other livestock from Mexico to stop the spread of the New World screwworm. The agency plans a phased-in ...

The screwworm was found in Veracruz and Oaxaca, which is just 700 miles from the U.S. According to the USDA, New World screwworms are deadly flies that lay eggs in open wounds.

The USDA will release sterile New World screwworm male flies into Mexico from a deactivated Air Force base in south Texas, hoping to stop the cattle-biting parasite from crossing the border.

The United States Department of Agriculture has suspended livestock trade at southern border ports after a new screwworm case in Veracruz, Mexico, emerged Wednesday. According to a press release ...

Home » USDA to combat screwworm with Texas sterile fly dispersal facility Regulatory News USDA to combat screwworm with Texas sterile fly dispersal facility 06/18/25 2:23 PM By Allie Herring ...

The new world screwworm (NWS), or Cochliomyia hominivorax, is a parasitic fly that resembles a common house fly. The USDA is particularly concerned with the species’ larval stage.

USDA said it eradicated screwworm from the U.S. in 1966 using this technique. (Reporting by Tom Polansek in Chicago) ...

The USDA threatens to halt imports of Mexican cattle and bison if Mexico fails to act against a flesh-eating screwworm fly spreading north toward U.S. herds.

When left untreated, they can be fatal. A New World screwworm larvae sits at rest in this undated photo. (USDA Agricultural Research Service via AP) (1770x2700, AR: 0.6555555555555556) ...

(WKRC) - U.S. Secretary of Agriculture Brooke L. Rollins announced the launch of an $8.5 million sterile New World screwworm (NWS) fly dispersal facility in South Texas to enhance the USDA's ...

"At USDA we are focused on fighting the New World Screwworm's advancement in Mexico," USDA Secretary Brooke L. Rollins said. "We have made good progress with our counterparts in Mexico to increase ...

Agriculture Secretary Brooke Rollins says a potential outbreak is a national security issue, and it could devastate livestock if it crosses into the U.S. The screwworm was found in Veracruz and ...