Screwworms near Texas border; high-tech solutions emerge
News October 15, 2025

Screwworms near Texas border; high-tech solutions emerge

New World Screwworms, an invasive species that can cause deadly damage to livestock and people, have been spotted 70 miles from the U.S./Mexico border, prompting Texas Gov. Greg Abbott and U.S. Secretary of Agriculture Brooke Rollins to push for preventative measures, including the construction of a sterile fly production facility and the use of high-tech solutions like electron beams and GPS tracking tags.

Screwworms, a dangerous parasite that preys on livestock and can even infect humans, are edging closer to the United States, raising alarms among agricultural officials. Recent detections just 70 miles south of the U.S./Mexico border have prompted a swift response, with Texas Governor Greg Abbott and U.S. Secretary of Agriculture Brooke Rollins spearheading efforts to prevent the invasive species from establishing a foothold in the country.

The New World Screwworm is a particularly nasty pest. Unlike other fly larvae that feed on dead tissue, screwworm larvae burrow into living flesh, causing painful and often fatal infestations in animals. This poses a significant threat to the multi-billion dollar livestock industry, with potential economic devastation for ranchers and farmers. Humans are also susceptible, though infections are less common.

To combat this encroaching threat, officials are advocating for a multi-pronged approach, combining traditional methods with cutting-edge technology. A key element of the strategy is the construction of a sterile fly production facility. This facility would mass-produce sterile male screwworms, which, when released into the wild, would mate with fertile females. Because the resulting eggs are infertile, this technique, known as the Sterile Insect Technique (SIT), effectively disrupts the screwworm's reproductive cycle and gradually reduces the population.

Beyond SIT, the plan also incorporates innovative high-tech solutions. Electron beam technology is being explored as a way to sterilize the male flies, ensuring their effectiveness in preventing reproduction. This method offers a potentially faster and more efficient way to sterilize large numbers of flies compared to traditional radiation methods.

Furthermore, the use of GPS tracking tags is being considered to monitor the movement and dispersal of the sterile flies. This would allow researchers to track the effectiveness of the SIT program and identify areas where additional intervention may be needed. By understanding the flies' behavior, control efforts can be more precisely targeted, maximizing their impact and minimizing costs.

The combined efforts of state and federal authorities, coupled with the implementation of these advanced technologies, represent a proactive attempt to protect the U.S. livestock industry and public health from the devastating effects of the New World Screwworm. The coming months will be crucial in determining the success of these preventative measures and ensuring that this dangerous parasite is kept at bay.
Category: Technology