U.S. Agriculture Secretary Brooke Rollins observed the release of sterile flies as a countermeasure against the New World screwworm. These flies were released on Thursday at a Texas ranch where the pest was recently detected. Rollins emphasized the potential devastation screwworms could cause to the cattle industry.
Rollins attributed the return of the pest to former President Joe Biden’s term, while Democrats blamed cuts made during Donald Trump’s presidency. The screwworm poses a significant international threat, potentially costing billions. Rollins believes vigilance among ranchers could help contain the issue, urging them to monitor and treat infestations swiftly.
A recent incident involved a calf, previously infected but now healthy. Screwworms lay eggs on live animals, feeding on healthy flesh. Releasing sterile flies, a proven method, helps control their population. Climate change complicates control efforts by expanding the pest’s habitat.
USDA’s Billion-Dollar Plan
The U.S. Department of Agriculture (USDA) plans a massive campaign against the screwworm. This pest had been contained in Panama for years. The USDA projects costs over $1 billion, including $750 million to build a facility to produce 300 million sterile flies weekly. The aim is to safeguard the U.S. cattle industry without affecting beef prices, provided an outbreak is prevented.
Screwworms have disrupted Mexico’s beef industry, with U.S. ports closing to Mexican livestock recently. Mexico has reported over 28,000 cases in the past two years. The Mexican government halted live animal imports from the U.S. after screwworm detection.
Re-Emergence of Screwworms
The U.S. was nearly free of screwworms for 60 years. In 2023, they resurfaced, migrating north. Texas and New Mexico have reported seven cases. A quarantine zone of 12 miles is established around each case.
Scientists are uncertain why screwworms moved from Panama. Jonathan Cammack from Oklahoma State University notes the need for international efforts to manage them. Climate plays a role, as screwworms thrive in warm, humid conditions, a concern as temperatures rise.
Canada has ceased importing livestock from Texas due to these pests. Screwworms favor areas where temperatures exceed 77 F, conditions increasingly common further north.
Political Implications
Rollins acted quickly on the billion-dollar response plan, still blaming the Biden administration. She suggested immigrants and cattle potentially brought the flies over the border.
Democrats, including U.S. Rep. Ted Lieu, argue the cuts under Trump worsened the situation. They challenge Rollins on USDA job reductions affecting inspection programs. Congress members highlighted USDA staffing changes, noting the disappearance of federal animal inspection roles in various counties.
Rollins redirected over 100 USDA employees to the response effort. She stressed its importance since her appointment by Trump. Lieu criticized the focus on Biden, noting that the administration’s choices exacerbated the problem.