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US farm agency says Texas sterile fly facility to open in spring 2027

By Thomson Reuters Aug 10, 2026 | 2:35 PM

By Leah Douglas

WASHINGTON, Aug 10 (Reuters) – The U.S. Department of Agriculture said in a post on X on ​Monday that a Texas facility to ‌breed sterile flies to combat screwworm will open ahead of schedule in spring 2027.

Previously, the agency said the plant would open at the ‌end ​of next year.

The first ⁠U.S. infestation of the ⁠parasitic New World screwworm fly in three decades was detected in Texas in June, threatening as much as $1 billion ​in losses to the state’s livestock industry.

The main tool used to combat screwworm ⁠is the dispersal of ⁠sterile screwworm flies, which are ​mostly produced in Panama at a plant ​that churns out 100 million flies per ‌week.

The planned Texas plant would produce an additional 100 million sterile flies per week by the end of 2027, according ⁠to the post on X from the USDA’s New World Screwworm Rapid Response account.

That production ⁠would reach ‌up to 300 million per ⁠week by the end of ​2028, ‌the post said.

Experts have said ​about 500 ⁠million sterile flies are needed to push screwworm southward to the Darien Gap, the stretch of rainforest between Panama and Colombia.

(Reporting by Leah Douglas in Washington; Editing by ​Matthew Lewis)