Insights and Stories on New World Screwworm

Black Angus breed cattle in a feedlot or feed yard. Ear tags and electronic monitoring tags have been touched up to removed distinguishing numbers and features

Mexico to open sterile fly plant to combat screwworm in 2026

Jul. 7, 2025 at 4:54 pm CDT

Mexico's government said on Monday that it has started to build a $51 million (C$69.8 million) facility in the country's south as part of an effort to combat screwworm, a pest that has disrupted Mexican exports of cattle to the United States.

USDA announces phased reopening of Mexican cattle imports after screwworm closure

Jun. 30, 2025 at 5:29 pm CDT

By Karl Plume Reuters

U.S. livestock: Cattle fall on unconfirmed screwworm report

May. 27, 2025 at 3:56 pm CDT

By Geralyn Wichers

USDA will not ban cattle imports from Mexico over latest screwworm case, agency says

Feb. 18, 2025 at 4:52 pm CST

By Reuters Tom Polansek

U.S. livestock: Feeder cattle rise on renewed New World screwworm concerns

Feb. 18, 2025 at 4:45 pm CST