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Screwworm Confirmation Prompts Border Closure and $1.8B Economic Threat

Screwworm Confirmation Prompts Border Closure and $1.8B Economic Threat

During a recent episode of the Texas Tribune TribCast, journalists and agricultural experts discussed the confirmation of the parasitic New World screwworm fly in Texas for the first time since 1982. The initial case was detected on June 4 in a three-week-old calf in La Pryor, and the total count has since reached five cases, with one expanding as far north as Andrews County. In response to these detections, the United States Department of Agriculture (USDA) has closed the U.S.-Mexico border to feeder cattle imports.

The Big Picture

According to data cited on the podcast, the detection arrives at a time when the Texas cattle industry is already experiencing a 75-year low in herd numbers due to prolonged drought. Analysts noted that if containment fails, potential economic damage to the state’s agricultural sector is estimated at $1.8 billion, which would put further upward pressure on retail beef prices that are already at record highs. Because the fly does not infect meat supplies and the parasite cannot be passed directly from one animal to another, officials are relying on ranchers to quickly spot and report infections to successfully contain the spread.

What Newsmakers Are Saying

  • Josh Weingarner (Texas Cattle Feeders Association) expressed optimism regarding the regulatory response: “I haven’t seen the slowness of the government in this situation that I expected. I’ve actually been very surprised by the level of coordination and cooperation between all of the federal and state agencies.”
  • Dr. Philip Kaufman (Texas A&M Entomologist) cautioned that eradication hinges entirely on the Sterile Insect Technique, but pointed out a significant supply gap, noting that current production capacity of 100 million flies per week falls well short of the estimated 500 million needed to address the threat.
  • On State Intervention: Podcast hosts reported that a new sterile fly production facility is currently being permitted at Moor Airfield in Mission, Texas, with Governor Greg Abbott pledging state resources to accelerate its construction.

By The Numbers

  • $15 Billion: The total financial valuation of the Texas cattle industry.
  • $1.8 Billion: The potential economic damage to the state’s agricultural sector if the outbreak spreads beyond control.
  • 1 Million: The number of head of feeder cattle cut off from annual import due to the sudden U.S.-Mexico border closure.
  • 1 Billion: The approximate number of pounds of beef removed from the market as a result of the trade halt.
  • 400 Million: The weekly shortfall in sterile fly production required to effectively deploy the Sterile Insect Technique across the affected areas.

The Dispatch Note (The Kicker)

According to the briefing, the Texas Department of Agriculture and federal partners are currently tracking the perimeter of the five confirmed cases to establish containment zones. Ranchers across the state are being urged by industry groups to inspect herds daily and report any suspicious wounds to local veterinarians or state animal health officials immediately. Industry experts indicate that the timeline for reopening the Mexican border remains dependent on the deployment speed of the new sterile fly facility in Mission.

Listen to the full episode here: Texas Tribune TribCast: How big of a threat is screwworm?