Texas cattle ranchers are bracing for the potential return of the New World screwworm, a parasitic pest that can decimate livestock. The insect, eradicated from the U.S. in the 1980s, has reappeared in northern Mexico, sparking fears of its re-emergence in Texas. Ranchers like Chris Womack, who remember the last infestation, are particularly concerned.

The screwworm lays eggs in open wounds of warm-blooded animals, and its larvae feed on living flesh. The pest's return could inflict significant economic damage on the cattle industry, leading to livestock losses and increased costs for treatment and prevention. The last major outbreak cost the U.S. cattle industry millions of dollars.

The U.S. Department of Agriculture (USDA) is monitoring the situation closely, potentially deploying sterile insect techniques to control any spread. This involves releasing sterile male screwworms to disrupt the pest's breeding cycle. The success of this preventative measure is key to protecting the southern cattle herds.

Should the screwworm return, ranchers will likely face increased costs for preventative measures, including insecticides. Ultimately, this situation represents a serious threat to the cattle industry which directly impacts beef prices and the livelihoods of ranchers across Texas.