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USDA to Open New Screwworm-Fighting Facility in Mexico

The new facility enables aerial sterile fly releases across northeastern Mexico, improving coverage and responsiveness to protect livestock from New World screwworm, USDA said.

  • On Thursday, the U.S. Department of Agriculture opened a sterile fly dispersal facility in Tampico, Mexico, enabling aerial releases across northeastern Mexico.
  • Until now, aerial releases were limited to southern Mexico, requiring ground release chambers in northern areas, while most New World screwworm cases remain in far southern Mexico with no active northern detections.
  • USDA currently disperses 100 million sterile flies per week in Mexico, producing them at the COPEG facility in Panama and using aerial dispersal and ground release chambers.
  • The Tampico opening will allow USDA to immediately tackle cases in Mexico, increasing flexibility to protect U.S. livestock and $30.2 billion in trade as winter approaches.
  • USDA is also expediting U.S. production with a targeted 300 million sterile flies per week and investing $21 million to support Mexico's Metapa facility renovation, which will double NWS capacity.
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USDA opens sterile fly dispersal facility in Mexico

The program is used to combat New World screwworm, a global health threat.

In what he considered “a new milestone in the fight against the New World Sweepworm (NWS),” the United States Department of Agriculture (USDA) announced the opening of a sterile fly dispersion facility in Tampico, Tamaulipas.

The U.S. government will disperse millions of sterile flies throughout northeastern Mexico in order to combat the impact caused by the sweeper worm on Mexican cattle. To this end, the U.S. Department of Agriculture (USDA) confirmed the launch of a dispersal facility for these insects in Tampico port, Tamaulipas, a strategic region to curb the spread of the insect in livestock areas in the northeast. In a statement released by the dependency, it …

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Southeast AgNET broke the news in on Thursday, November 13, 2025.
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