Screwworm Outbreak in U.S. Triggers Political Debate and USDA Response
The United States has confirmed 12 cases of screwworm, primarily in cattle across Texas and New Mexico, prompting a multi-billion dollar response from the Department of Agriculture. This outbreak follows significant workforce reductions within the USDA's Animal and Plant Health Inspection Service a year prior. The situation has ignited political debate, with officials from the previous administration attributing the spread to border policies, while Democrats connect it to earlier federal workforce cuts, raising concerns about the nation's food supply and beef prices.

The screwworm has been detected in the United States, leading to a planned response exceeding $1 billion by the Department of Agriculture (USDA). This effort includes an estimated $750 million to establish a facility capable of producing and releasing 300 million sterile male screwworms weekly. This method, involving sterile males mating with wild females to prevent reproduction, is a longstanding standard for eradicating the pest.
The first U.S. case was identified in South Texas on June 3. This detection occurred one day after Agriculture Secretary Brooke Rollins had denied a Texas state lawmaker's claim that the parasitic fly was found close to the U.S.-Mexico border. Currently, 12 confirmed cases exist in the U.S., predominantly in cattle, with 11 reported in Texas and one in New Mexico.
The outbreak coincides with record-high beef prices and the lowest cattle herd in 75 years, a situation exacerbated by prolonged drought. Economist Brandon Parsons from Pepperdine Graziadio Business School noted that a potential screwworm outbreak could lead to further price increases on top of existing supply shortages. While the screwworm's arrival in the U.S. has not yet measurably impacted beef prices, its spread in Mexico has already reduced cattle imports and contributed to price pressures.
The pest's presence on U.S. soil follows a year after the USDA's Animal and Plant Health Inspection Service (APHIS), the agency responsible for monitoring and responding to such threats, lost over 2,100 employees, approximately 25% of its workforce, due to federal cuts. Texas Agriculture Commissioner Sid Miller described the federal response as "slow" and "bureaucratic" before the initial case was confirmed.
Screwworms had been contained in Panama for decades, but cases began appearing farther north in 2023, eventually crossing into the U.S. this month. Officials from the previous administration have attributed the spread to the northward migration of people and livestock, with Rollins citing "the Biden-Harris Admin's WEAK foreign policy agenda and FAILED immigration policies" on X. Conversely, Democrats connect the previous administration's workforce cuts to an alleged inability to prevent the screwworm's entry into the U.S. Kendall Witmer, DNC Rapid Response director, stated that "Trump's reckless and harmful cuts and his administration's incompetence have left the U.S.'s food supply vulnerable to outbreaks and risk escalating already high prices for beef."
According to Axios, additional detections could elevate the screwworm from an agricultural challenge to a significant political issue.

