07/11/2026
New World Screwworm continues to spread across Texas. We are sharing this reference guide to help fellow landowners, cattle producers, and wildlife managers recognize the signs early and respond appropriately.
Please take a moment to review the information below, including common entry points, warning signs, and appropriate steps to take if NWS is suspected. Early detection and prompt reporting remain the most effective tools in limiting the spread of NWS.
To report a suspected case:
Livestock and companion animals-
Texas Animal Health Commission: 1-800-550-8242
Wildlife-
Texas Parks and Wildlife Department: 512-389-4505
We encourage you to share this information with neighboring landowners and to remain vigilant in monitoring livestock and wildlife on your property.
If you have any questions, contact David Kitner (956) 285-0466
Information compiled from Texas A&M AgriLife Extension, Zoetis, local veterinarians, the National Grazing Lands Coalition, Texas & Southwestern Cattle Raisers Association, TPWD, TAHC, and the FDA.