Screwworm parasites primarily infect livestock, but human cases have risen in Central America after the pests escaped ...

In response to the continued expansion of screwworm flies into southern Mexico, the U.S. suspended live animal imports from Mexico on May 11, 2025, halting imports of feeder cattle from Mexico.

After decades of eradication – the New World screwworm has once again spread through several countries in Central America.

(USDA | CONTRIBUTED PHOTO) The New World Screwworm has broken through barriers and into Mexico, as livestock producers in the ...

It’s no longer a question of whether we’ll see a return of New World screwworm in the U.S.—but a matter of when. That’s according to Colin Woodall, CEO of the National Cattlemen’s Beef Association (NC ...

Two Guatemalan pilots and a Mexican agronomist engineer have died after their plane crashed in southern Mexico near the border with Guatemala as they freed sterile flies meant to stop the spread of ...

USDA suspended the import of live cattle, bison and horses through U.S. ports of entry along the southern border as of May 11 ...

Colin Woodall, CEO of the National Cattlemen’s Beef Association, says the screwworm, a parasitic pest, is likely to cross the ...

The U.S. Department of Agriculture last month stopped the movement of cows, horses and bison between Mexico and the U.S.

A plane crash in southern Mexico resulted in the deaths of two Guatemalan pilots and a Mexican agronomist engineer as they ...

With no U.S. cases yet, AgriLife's upcoming session will highlight crucial screwworm prevention strategies for ranchers.

USDA and Mexico announce $21 million investment to combat New World screwworm as cattle experts closely watch developments.