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New World Screwworm (NWS) has been detected in Texas, learn more about NWS.

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TPWD News Releases

June 13, 2026

Situational Update: New World Screwworm

For additional resources, visit tpwd.texas.gov/screwworm. Media assets can be found on the TPWD New World Screwworm Media Kit page.

June 4, 2026

Se confirma la presencia del gusano barrenador del Nuevo Mundo en un becerro del condado de Zavala

AUSTIN — El 3 de junio, el Departamento de Parques y Vida Silvestre de Texas (TPWD) recibió la confirmación de la detección del gusano barrenador del Nuevo Mundo (NWS) en el condado de Zavala. Una muestra recogida de un becerro de tres semanas con una lesión umbilical fue identificada y confirmada como NWS por el Laboratorio Nacional de Servicios Veterinarios (NVSL) en Ames, Iowa. Actualmente no hay más detecciones en animales en Texas.

June 3, 2026

New World Screwworm Confirmed in Zavala County Calf

AUSTIN — On June 3 the Texas Parks and Wildlife Department (TPWD) received confirmation of a detection of New World screwworm (NWS) in Zavala County. A sample collected from a three-week-old calf with an umbilical lesion was identified and confirmed as NWS by the National Veterinary Servies Laboratory (NVSL) in Ames, Iowa. There are currently no further detections in animals in Texas.

April 28, 2026

Look, Don’t Touch — Leave Baby Wildlife Where You Find Them

AUSTIN — Warmer weather across Texas means more time outdoors and more encounters with wildlife. Spring and early summer are also when many species give birth and raise their young, which can lead to confusion when animals appear to be alone.

Oct. 31, 2025

Crías Prósperas y Caza Próspera: La Población de Venados en Texas se Mantiene Fuerte

AUSTIN — Para los cazadores, la primavera en Texas suele asociarse con la caza de pavos en un clima cálido y húmedo, o con cambiar las armas de fuego por la caña de pescar. Para el venado cola blanca, la primavera representa una época de crecimiento: crecimiento corporal, crecimiento de las astas y crecimiento poblacional.

Thriving Fawns, Thriving Hunt: Texas Deer Numbers Stay Strong

AUSTIN — To hunters, springtime in Texas is often viewed as chasing turkeys through hot, humid weather, or hanging up the firearm for a fishing pole. For white-tailed deer, spring represents a time for growth: body growth, antler growth and population growth.

Sept. 23, 2025

Wildlife Health Alert: Texans Encouraged to Stay Vigilant for New World Screwworms

AUSTIN — On Sept. 21, Mexico’s National Service of Agro-Alimentary Health, Safety, and Quality (SENASICA) confirmed a positive detection of New World screwworm (NWS) in a cow in Sabinas Hidalgo, located in Nuevo León, Mexico, about 70 miles from the U.S.-Mexico border. Preliminary reports indicate the cow had been moved to a certified feedlot from a region in southern Mexico with known NWS cases.

Sept. 16, 2025

White-tailed Deer Archery Hunters Should Have Plenty of Opportunities to Harvest Quality Bucks Before the General Season

AUSTIN —White-tailed deer hunters heading to blinds for the archery-only season should experience another great opener this year. Bucks during this time of year gather in bachelor groups and provide plenty of hunting opportunities before the rut kicks off.

June 25, 2025

Texas New World Screwworm Response Team Formed to Amplify Preparedness

AUSTIN – The Texas Animal Health Commission (TAHC) and Texas Parks and Wildlife Department (TPWD) are forming a joint response team to coordinate efforts in combating New World screwworm (NWS) prior to its arrival in Texas, following a directive from Governor Greg Abbott.

Dec. 30, 2024

TPWD Fomenta el Monitoreo y la Notificación de los Animales Afectados por el Gusano Barrenador del Nuevo Mundo

AUSTIN — El Departamento de Parques y Vida Silvestre de Texas (TPWD) pide a los cazadores y otros entusiastas de las actividades al aire libre en el sur de Texas que estén atentos a los animales afectados por el gusano barrenador del Nuevo Mundo (NWS) después de una reciente detección en México.