Texas agriculture commissioner said the northernmost active case from the parasitic New World screwworm fly was a “flashing red warning sign.” ...

A devastating agricultural pest, the New World Screwworm Fly (NWS), has been eradicated in the United States since 1982. Today, it’s marching closer to American borders, and local, state, and national ...

State and federal officials are gearing up to stop the advance of a parasitic fly that is less than 70 miles from the United States border with Mexico. Since Nov. 25, at least 10 new cases of ...

A U.S.-based facility dedicated to releasing sterile screwworm flies began operations Monday in Texas, marking a major step in efforts to prevent the flesh-eating parasite from crossing the Mexican ...

New World Screwworm continues to creep towards the United States border from Mexico. On Sept. 21, 2025, Mexico's National Service of Agro-Alimientary Health, Safety, and Quality (SENASICA) confirmed ...

Texas and the U.S. are both on high alert over the presence of the new world screwworm, the flesh-eating fly that has historically caused havoc on the nation's cattle supply. Days after a case of the ...

A flesh-eating parasitic fly has spread north through Mexico to within a few hundred miles of the U.S. southern border. The New World screwworm (Cochliomyia hominivorax) lays its eggs in open wounds ...

MISSOURI, USA — State and federal officials are gearing up to stop the advance of a parasitic fly that is less than 70 miles from the United States border with Mexico. Since Nov. 25, at least 10 new ...