An Invasion of Flesh-Eating Pests Will Have to Get by These Texas Cowboys An insidious pest has been infecting cattle just over the border, in Mexico. "Tick riders,” a 120-year-old group of mounted USDA inspectors, are the nation’s first line of defense.

The #TickRiders, a group of mounted #USDA inspectors, are the nation’s first line of defense for #Cattle industry against the #Screwworm.

www.texasmonthly.com/news-politic...