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US Plans $750 Million Texas Fly Factory to Quell Screwworm Outbreak

USDA announced the Texas fly factory to rebuild sterile-insect capacity following repeated live-animal import suspensions.

Cattle stand inside their corral on a ranch amid a growing outbreak of flesh-eating screwworms that threatens livestock and wildlife across the Chiapas state region, in Tapachula, Mexico July 4, 2025. REUTERS/Daniel Becerril/File Photo
Image
Technicians prepare bait to attract flies near a cattle auction in Hermosillo, Sonora state, Mexico, Tuesday, July 29, 2025. (AP Photo/Fernando Llano)
Gov. Greg Abbott shakes hands with U.S Secretary of Agriculture Brooke Rollins after they spoke on plans to fight the New World screwworm at a news conference at the Capitol in Austin, Friday, Aug. 15, 2025.

Overview

  • The USDA will invest $750 million to construct a sterile-fly production facility at Moore Air Base near Edinburg, Texas, aiming to breed 300 million sterile male flies weekly within about a year.
  • Alongside the factory, USDA plans to allocate roughly $100 million for traps, lures, mounted “tick rider” patrols and canine teams to elevate surveillance along the US-Mexico border.
  • Live cattle, horse and bison imports from Mexico remain suspended until authorities confirm the screwworm is being driven back toward Panama.
  • Under a newly signed US-Mexico control action plan, both governments are jointly funding a $51 million sterile-fly plant in Chiapas that is expected to begin operations in 2026.
  • Mexican ranchers continue to face economic hardship from export bans, distressed cattle sales and thousands of livestock infections amid ongoing regional outbreaks and human cases, including a reported death.