A horse was found in Grant County, New Mexico, with a wound infested by New World screwworm larvae. The animal was discovered on Tuesday, September 29, 2026, at 14:29:55 MDT, roughly 50 miles from the Arizona border.
The New World screwworm is a parasitic fly capable of infesting livestock, and sightings near state lines prompt concern about the parasite’s potential spread into neighboring Arizona.