Texas A&M outlines the USDA fever tick eradication program and the permanent quarantine zone along the Rio Grande, where cattle must be treated before leaving. It also covers the screwworm threat to livestock in the region.
Tick and screwworm controls restrict cattle movement from the border zone, which can tighten local feeder supplies but has little effect on national prices.
After 356 past disease events, Live Cattle moved a median +0.2% over 5 sessions (54% higher; middle half -0.8% to +1.1%), and +1.1% over 20.
After 266 past disease events, Feeder Cattle moved a median +0.5% over 5 sessions (59% higher; middle half -1.1% to +1.7%), and +1.7% 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.