WATCH: Flesh-eating screwworm detected in Texas for 1st time in decades

The U.S. Department of Agriculture says the New World screwworm fly has reached South Texas, marking the first time in decades that the parasite has threatened the nation's cattle industry.

The U.S. Department of Agriculture says the New World screwworm fly has reached South Texas, marking the first time in decades that the parasite has threatened the nation's cattle industry.

The U.S. Department of Agriculture says the New World screwworm fly has reached South Texas, marking the first time in decades that the parasite has threatened the nation's cattle industry.