06/04/2026
📣 NEW WORLD SCREWWORM ALERT🚨
New World Screwworm has now been detected in Texas.
Now is the time to stay vigilant with fly control and wound management. Adult screwworm flies have a relatively limited flight range (approximately 3 miles), so long-distance spread often occurs through the movement of infested animals or contaminated vehicles and equipment.
Any wounds should be covered and protected whenever possible to prevent flies from laying eggs. Pay close attention to foal umbilical sites and continue normal care to promote drying and healing of the tissue.
If you suspect screwworm, remember that larvae must be physically removed and destroyed. Early detection is critical, as infestations can worsen rapidly.
Screwworm is a reportable disease. Contact your veterinarian and the appropriate animal health authorities immediately if you suspect a case.
Prevention, early recognition, and prompt reporting are our best tools to protect horses and livestock.
https://www.aphis.usda.gov/news/agency-announcements/usda-confirms-presence-new-world-screwworm-united-states
Screwworm.gov
https://www.fda.gov/animal-veterinary/safety-health/new-world-screwworm-information-veterinarians
www.aphis.usda.gov/sites/default/files/pesticides-for-nws.pdf
https://screwwormtx.org/
New World Screwworm Resources – A Website for Texans Identify Screwworm Quickly:Photos, symptoms and behavior signs Report Suspicions:Learn how to report suspected infestations of NWS Learn about the Pest:Learn how NWS spreads and how it was previously eradicated in the U.S. View Confirmed Cases i...
