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NPPC Comments on USDA Plan to Address New World Screwworm

By Abbey Canon

What happened: NPPC submitted comments on the U.S. Department of Agriculture’s draft response plan for a new world screwworm detection in the United States. NPPC’s feedback addressed areas of the response including movement controls and movements to slaughter, treatment, and physical examinations, among others.

NWS is a flesh-eating parasite from female flies that lay eggs in wounds on warm-blooded animals, including pigs and people. According to USDA, animals that recently have given birth, suffered an injury, or had a surgical procedure such as tail docking or branding are most vulnerable. Even tick bites can attract NWS flies.

The disease has moved from South America through Central America and into Mexico over the past few years, with a case recently being identified in cattle a few hundred miles south of the U.S.-Mexico border. It is endemic in Cuba, the Dominican Republic, Haiti, and some South American countries.

In May, USDA closed the U.S. southern border to imports of cattle from Mexico to prevent NWS from entering the United States. USDA unveiled plans in August that included building a sterile fly production facility in south Texas, investing in new technologies to eradicate NWS, and increasing surveillance at U.S. ports of entry.

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Evolution of Beef Cattle Farming

Video: Evolution of Beef Cattle Farming

The Clear Conversations podcast took to the road for a special episode recorded in Nashville during CattleCon, bringing listeners straight into the heart of the cattle industry. Host Tracy Sellers welcomed rancher Steve Wooten of Beatty Canyon Ranch in Colorado for a wide-ranging discussion that blended family history and sustainability, particularly as it relates to the future of beef production.

Sustainability emerged as a central theme of the conversation, a word that Wooten acknowledges can mean very different things depending on who you ask. For him, sustainability starts with the soil. Healthy soil produces healthy grass, which supports efficient cattle capable of producing year after year with minimal external inputs. It’s an approach that equally considers vegetation, animal efficiency, and long-term profitability.

That philosophy aligned naturally with Wooten’s involvement in the U.S. Roundtable for Sustainable Beef, where he served as a representative for the Colorado Cattlemen’s Association. The roundtable brings together the entire beef supply chain—from producers to retailers—along with universities, NGOs, and allied industries. Its goal is not regulation, Wooten emphasized, but collaboration, shared learning, and continuous improvement.