The U.S. Department of Energy’s National Nuclear Security Administration’s (NNSA) Office of Radiological Security (ORS) is partnering with Texas A&M University to combat New World screwworm (NWS).
On Sept. 21, USDA announced NWS had been found less than 70 miles from the U.S. border near one of the most heavily trafficked commercial thoroughfares in the world.
Working with Texas A&M’s National Center for Electron Beam Research (NCEBR), NNSA is advancing the Sterile Insect Technique (SIT) using electron beam (eBeam) technology in place of radioactive cobalt. SIT effectively prevents the spread of NWS by releasing sterilized male screwworms to halt reproduction and reduce their population.
According to the release, ORS’s mission includes preventing the misuse of highly radioactive materials and promoting innovative alternatives like eBeam devices. The eBeam technology eliminates the need for radioactive sources, which could be used for nefarious purposes if they fell into the wrong hands.
This collaboration enhances radiological security best practices nationwide, thus strengthening national security.
“Our mission-driven partnership with Texas A&M is essential to advancing American innovation in eBeam applications and enhancing our national security,” says Kristin Hirsch, Director of ORS. “With the support of Texas A&M AgriLife experts, NNSA is able to help combat the spread of the NWS, building stronger food systems and safer communities across the country.”
U.S. Secretary of Agriculture Brooke Rollins recently announced a new NWS fly dispersal facility in Texas and a five-pronged plan for eradicating the pest. The plan includes the USDA pursuing innovative research, such as eBeam and other technologies.
Currently, SIT relies on cobalt-60 gamma sterilization. But cobalt-60 carries significant radiological security risks, so NNSA, NCEBR and Texas A&M’s Department of Entomology have worked to find replacement methods. Through modeling studies sponsored by NNSA and conducted by Texas A&M since 2023, researchers identified eBeam technology as a viable alternative and are working to make it available to USDA to combat NWS.
NNSA has been collaborating on the development of an eBeam system to be used for chemical remediation, another critical area where cobalt-60 use could become a risk. NNSA is repurposing this technology toward NWS response and accelerating development to make eBeam available to USDA by early 2026.
Once integrated into a rearing facility, it could create more than 100 million sterile flies in 24 hours. That’s a vast improvement compared to cobalt-60, which can take a week to do the same amount. This efficiency would be a game-changer in NWS response.
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