Screwworm Shock Lifts Cattle Prices as Texas Faces $1.8 Billion Risk
A rare screwworm case in Texas is shaking livestock markets, boosting cattle futures and raising fears of major economic losses.
CHICAGO, June 4, 2026 - U.S. cattle markets surged Thursday after the USDA confirmed the first New World screwworm case in Texas since 1966, detected in a calf near the U.S.-Mexico border. The announcement triggered intense concern among ranchers and traders, who fear additional cases could further reduce the nation's already historically tight cattle supplies. The development matters because Texas' livestock sector could face up to $1.8 billion in economic losses if the parasite spreads.
The flesh-eating parasite was confirmed by the USDA late Wednesday after advancing north through Mexico over the past year. Although Agriculture Secretary Brooke Rollins said federal officials believe the case can be contained, the discovery has put the livestock industry on high alert.
"The New World screwworm sounds like something from a horror movie, but it's real," said Nate Sheets, Republican nominee for Texas agriculture commissioner. "It is an agricultural emergency."
Experts warn that a wider infestation could further shrink the U.S. cattle herd, which has already fallen to its smallest size in 75 years following years of drought, elevated feed costs, and herd liquidations.
Feeder cattle futures initially fell on the Chicago Mercantile Exchange as traders weighed the possibility that consumers could reduce beef purchases. However, the market quickly reversed course, with futures climbing more than 3% as participants focused on already limited cattle supplies.
Analysts say the market's reaction reflects uncertainty over both the pace of the parasite's spread and potential consumer sentiment.
"Until we see a significant demand impact from consumers, cattle supplies remain tight," said commodity broker Matt Wiegand.
The discovery comes at a difficult time for U.S. ranchers. Meat processors have already struggled to secure enough cattle for slaughter due to reduced herd numbers. Industry groups are now urging regulators to consider allowing low-risk livestock shipments to processing facilities, even as movement restrictions remain in place around the affected area.
Researchers also warn that monitoring livestock across vast grazing areas may become increasingly difficult if the parasite establishes itself in wildlife populations.
