After cattle threat was largely eradicated in US, Screwworm fly detected in Texas decades

TL;DR

Flesh-Eating Screwworm Found in Texas Calf, USDA Says The U.S. Department of Agriculture has confirmed that the New World screwworm fly has arrived in south Texas The New World screwworm fly has reached south Texas, the U.S. Department of Agriculture confirmed Wednesday, the first time in decades that the parasite with flesh-eating larvae has threatened the nation's cattle industry and only the third time it's appeared in the U.S.