Arkansas Ranchers Warned to Monitor Livestock: Screwworm in Texas

The U.S. Department of Agriculture (USDA) recently confirmed a case of New World Screwworm in a calf located in Texas, just 15 miles from the U.S.-Mexico border. While the case is isolated, the discovery has prompted officials to urge livestock producers in surrounding regions, including Arkansas, to remain vigilant.

The New World Screwworm is a parasitic fly larva that poses a significant threat to cattle and other livestock. Addie Stamps, the director of commodity activities and economics at the Arkansas Farm Bureau, explained that the parasite targets vulnerable areas of an animal's body. The larvae typically enter through the eyes, nostrils, or open wounds, where they burrow deep into the animal's flesh, causing severe tissue damage.

This confirmation comes after a period of heightened surveillance. Officials have been monitoring the movement of the parasite for over a year, noting its presence as far south as Panama. In response, the USDA has focused its preventative strategies and containment efforts primarily along the Texas-Mexico border to halt the parasite's progression into the interior of the United States.

Ranchers are encouraged to conduct regular health checks on their herds. A key warning sign of an infestation is a distinct, foul odor coming from the animal, especially in areas where open wounds are present. Early detection is critical to treating the animal and preventing the spread of the parasite to other livestock.

Despite the seriousness of the parasite's impact on animal health, the USDA has clarified that the New World Screwworm does not currently pose a threat to the human food supply. The infected calf in Texas has been contained, and authorities continue to monitor the situation closely to ensure the parasite remains under control.