An old foe of U.S. livestock approaching from South America threatens the health of American cattle and the livelihood of ...

A single cow in Mexico and a pest the size of a housefly have held up pens full of Texas-bound cattle worth millions of ...

Calves under one year of age are more susceptible than older cattle. Older cattle frequently have been exposed to the parasites and developed a degree of immunity. Adult worms in the gut of cattle ...

The Southwest border has been closed to cattle since November, when a case of New World Screwworm was detected in a cow in ...

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

Cattle and hogs higher early Monday ... Instead the market latched on to the weekend headline about New World Screw worm detected in a Mexican cow and border restrictions that followed.

The USDA urges cattle producers to closely monitor their ... including more check-ups, worming treatments, and dousing their herds in bug-killing baths to wipe out any pesky larvae before things ...