USDA Confirms Screwworm Fly Detection in Texas, Establishes Quarantine Zone to Protect Livestock
The U.S. Department of Agriculture (USDA) has confirmed the presence of the New World screwworm fly in South Texas, marking the first detection in decades. The parasite, known for its flesh-eating larvae, was found in a 3-week-old calf in La Pryor, Texas, approximately 50 miles from the Mexico border. In response, Texas State Veterinarian Bud Dinges has established a 12-mile quarantine zone to prevent the movement of warm-blooded animals, including pets, without inspection. USDA Secretary Brooke Rollins emphasized that while the larvae pose a threat to livestock, they do not infest food, and the infested calf is expected to recover with proper treatment. The USDA has been proactive in combating the fly's spread by releasing millions of sterile screwworm flies in the area, a method previously successful in eradicating the pest. The USDA has also invested $21 million to convert a fruit-fly breeding facility in Mexico into a screwworm fly breeding site, with operations expected to begin soon.