The U.S. Department of Agriculture (USDA) has publicly rebuked Texas Agriculture Commissioner Sid Miller following his remarks suggesting ranchers might hesitate to report New World screwworm infestations due to quarantine restrictions. U.S. Agriculture Secretary Brooke Rollins characterized Miller’s comments as "dangerous" and "unserious" during a briefing at the Knipling-Bushland U.S. Livestock Insects Research Laboratory in Kerrville, Texas. This exchange occurs amidst a growing number of screwworm detections in Texas, with federal officials confirming three additional cases, bringing the state’s total to five within a week. A case was also confirmed in neighboring New Mexico, underscoring the escalating regional concern.
Commissioner Miller, who recently lost his bid for re-election, had reportedly stated his personal reluctance to report a screwworm infestation on his own property due to the potential economic impact of quarantine measures, which restrict the movement of livestock. This statement has drawn sharp criticism from federal authorities who emphasize that prompt reporting is crucial for effectively managing and eradicating the parasitic pest. The USDA, alongside state officials, is actively engaged in containment efforts, including increased surveillance, trapping, and the release of sterile flies to combat the spread of the New World screwworm.
USDA and Texas Officials Clash on Screwworm Response Strategy
Secretary Rollins highlighted the critical importance of immediate reporting by ranchers in controlling screwworm outbreaks. She stated that ranchers are vital partners in the containment efforts, emphasizing a unified approach to combat the pest. The USDA’s Animal and Plant Health Inspection Service (APHIS) has deployed a multi-faceted strategy, including surveillance, quarantine zones around confirmed detections, and the release of sterile flies. These sterile flies are designed to mate with wild populations, thereby reducing the reproductive capacity of the New World screwworm.
Rollins defended the federal response, asserting that the USDA has been monitoring the screwworm's re-emergence for an extended period and is prepared to address the threat. She assured that despite the pest’s spread north through Central America and Mexico, the current response is robust. The New World screwworm, a flesh-eating parasite eradicated from the U.S. in the 1960s, poses a significant risk to livestock and wildlife. 
The agency is committed to preventing it from becoming permanently established in Texas, a state with a substantial agricultural sector.
Commissioner Miller Advocates for Additional Control Methods
In response to the ongoing situation, Commissioner Miller has advocated for the implementation of the Screwworm Adult Suppression System (SWASS). This technology, which involves bait and insecticides, is intended to reduce populations of fertile adult screwworm flies. Miller argues that SWASS should be used in conjunction with the sterile fly release program, suggesting that a combination of methods is more effective than relying on sterile flies alone. He expressed concern that the USDA is not acting swiftly enough to deploy all available tools to control the outbreak.
Miller reiterated his support for the sterile fly release program but insisted that SWASS offers a complementary approach. "You don't win this battle with one tool," he stated in a released statement. "You kill fertile flies with SWASS while overwhelming the remaining population with sterile flies." He urged the USDA to expedite the deployment of SWASS and other technologies to prevent the outbreak from escalating further, emphasizing that current efforts alone might be insufficient.
Containment Efforts and Expert Appointed
The public disagreement between federal and state officials occurs as containment efforts intensify. Governor Greg Abbott has declared a disaster related to the screwworm response, signaling the seriousness of the situation. At the briefing, Secretary Rollins announced the appointment of John Bellinger, a San Antonio businessman and Texas A&M Regent, as a senior advisor for New World screwworm preparedness. Bellinger's role will involve coordinating efforts to enhance the range of tools available for combating the pest.
Governor Abbott, present at the briefing, conveyed confidence in the established response plan for the screwworm. He stressed the importance of vigilance and informed action from all stakeholders. The ongoing collaborative efforts involve not only federal and state agencies but also local ranchers who are being urged to report any suspected infestations promptly to facilitate rapid containment and prevent wider dissemination of the parasite. 
