USDA sets conditional Aug. 24 reopening for Mexican cattle trade

The U.S. Department of Agriculture plans to reopen the Douglas, Arizona, port to Mexican cattle trade on August 24, 2026, restoring one controlled cross-border route after a suspension that has lasted more than a year because of New World screwworm concerns.

The move is not an unconditional return to normal trade. In its July 24 announcement, USDA said the reopening will be phased and contingent on Mexico’s adherence to a Joint Action Plan. The agency also began operational steps for possible later openings at Santa Teresa and Columbus, New Mexico.

What changes on August 24

Douglas is the first port scheduled for reopening. USDA says every animal entering through the reopened ports will undergo a full inspection for signs of New World screwworm.

USDA’s current-status guidance says the timeline remains flexible. The agency may adjust or pause the opening if Mexico does not meet action-plan milestones, if post-opening audits identify increased risk in Sonora or Chihuahua, or if other information changes the assessment.

Santa Teresa and Columbus are not yet reopened. USDA says it will evaluate the initial Douglas reopening and related risk information before considering those New Mexico ports for live cattle, bison and horse trade.

Why the disease led to a trade suspension

New World screwworm is a parasitic pest that affects livestock and wildlife. Its larvae infest wounds and can cause severe injury or death in animals if the infestation is not treated.

USDA says the current risk to people and animals in the United States is very low. It also says New World screwworm is not a food-safety issue and that the U.S. food supply remains safe. The disease-control rules are intended to protect animal health and agricultural trade, not to address contamination of beef sold to consumers.

USDA continues to maintain surveillance, trapping and movement protocols along the border and in Mexico. The announced reopening therefore reflects a controlled, conditional policy change—not a declaration that the screwworm threat has ended.

Why ranchers and feedlots are watching

Mexico is a major source of live cattle entering the United States. USDA’s Economic Research Service says Mexico provided about 62% of U.S. cattle imports from 2020 through 2024, and nearly all of those animals were lighter-weight cattle intended for U.S. stocker or feeder operations.

That makes the border route important to ranchers, stocker operators, feedlots and processors, especially while domestic cattle supplies remain constrained. ERS says a previous 2025 protocol change caused feeder-cattle import volumes to recover slowly: after imports resumed on February 1, 2025, it took six weeks for average weekly volume to reach about 68% of prior-year levels. USDA then reinstated the suspension on May 11, 2025, after additional detections in Mexico.

A phased reopening could improve availability for buyers who depend on Mexican feeder cattle, but it does not guarantee lower grocery prices. Retail beef prices also reflect the size of the U.S. herd, feed costs, slaughter levels, consumer demand and other import and export flows.

How USDA plans to manage the risk

USDA says it has intensive surveillance and monitoring along the U.S.-Mexico border and is working with Mexican authorities on trapping, inspections and animal-movement controls. Those measures are expected to continue as the Douglas port reopens.

The department is also expanding sterile-fly production and dispersal. USDA says investments in new and existing infrastructure are expected to bring production close to approximately 500 million sterile flies per week. On July 29, USDA announced a $25 million commitment for a new sterile-fly dispersal facility in Arizona.

Sterile flies are one part of the broader response. The expanded production effort does not by itself guarantee eradication or determine whether a port remains open; those decisions will continue to depend on surveillance, risk assessments and compliance with the joint action plan.

What happens next

The immediate milestone is August 24, 2026, when the announced Douglas reopening is scheduled to begin. The next questions are whether Mexico meets the Joint Action Plan requirements, whether USDA moves toward opening Santa Teresa and Columbus, and whether new detections or audits change the schedule.

For consumers, the practical signal will be the broader cattle market rather than an immediate change in the price of ground beef or steaks. For producers, the key measure will be whether the phased reopening creates a more reliable flow of feeder cattle while maintaining strict animal-health controls.

Sources

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