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The Trump administration suspended imports of Mexican beef cattle for 15 days after detecting the screwworm parasite. Texas A&M entomologist Phillip Kaufman said the pause protects U.S. cattle markets and is unlikely to raise beef prices immediately, though spread of the fly into the U.S. would be a larger risk.
Mexican President Claudia Sheinbaum called the suspension unfair.
Fewer Mexican feeder cattle entering the U.S. tightens feeder supply, which supports cattle prices, while the pest threat adds uncertainty to herd health and movement. Analysts expect little immediate effect on retail beef prices.
krgv.comSantiago CaicedoNov 1, 2026After 122 past bullish disease events, FCATTLE moved a median +0.4% over 5 sessions (60% higher; middle half -1.0% to +1.6%), and +2.0% over 20.
After 148 past bullish disease events, LCATTLE moved a median +0.4% over 5 sessions (62% higher; middle half -0.5% to +1.2%), and +1.4% over 20.
Moves of each commodity's benchmark from the last close before the event. Historical reads pool past events of the same kind; they describe what happened, not what will. Not investment advice.
