The New World screwworm, a deadly parasite, has been spotted in Mexico, raising concerns for Texas ranchers and hunters.

Outgoing USDA Secretary Tom Vilsack sent a letter to Mexico’s Secretary of Agriculture acknowledging the progress made in ...

The emergence of the New World screwworm in Mexico has raised alarms that the dangerous fly larvae could cross into Texas.

Texas Agriculture Commissioner Sid Miller believes the USDA closed imports prematurely. He says the ban is hindering an ...

Update: ABC-7 was able to speak with Alvaro Bustillos, the chair of the board of the Chihuahua Cattleman's Association. He is ...

USDA has requested adjustments to Mexican facilities set up to screen cattle exports to the U.S. for the New World Screwworm, ...

Protecting the nation’s beef herd against New World screwworm requires vigilance at all levels, Kim Brackett writes.

Screwworm was declared eradicated from the U.S. in 1966, but Texas saw an outbreak that affected 20% of its cattle in 1976. More recently, it saw a resurgence in 2016 in the Florida Keys, killing more ...

"Their eyes and ears will be critical to quickly responding and managing this threat." New World screwworms are larvae that mostly infest livestock but can also affect humans and wildlife.