USDA Mobilizes 180 Million Sterile Flies to Counter New World Screwworm Outbreak
### The USDA’s Unconventional Weapon: Millions of Sterile Flies Take Flight The U.S. Department of Agriculture has launched an unprecedented biological control campaign to suppress a resurgence of the New World screwworm—an obligate parasitic blowfly whose larvae can devastate cattle, sheep, and other livestock. By mass‑rearing and releasing 180 million sterilized flies from a newly inaugurated 22,000‑square‑foot facility in Metapa, Mexico, USDA aims to outcompete wild populations and halt the parasite’s spread before it inflicts further economic loss. **Key Takeaways** - **Scale of the operation:** The Metapa plant will produce up to 180 million sterile flies annually, a figure unprecedented in U.S. agricultural pest management. - **Sterile Insect Technique (SIT):** Released flies are irradiated to render males infertile, allowing them to mate with wild females without generating offspring, thereby reducing the screwworm population over time. - **Cross‑border collaboration:** The facility’s location in Mexico leverages favorable climate conditions for rapid fly production while strengthening bilateral bio‑security cooperation. - **Economic stakes:** Screwworm infestations can cost producers millions in livestock loss, veterinary care, and trade restrictions; the SIT program is a pre‑emptive investment to protect the $100 billion U.S. livestock sector. - **Environmental advantage:** Unlike chemical insecticides, sterile flies pose no residue risk, aligning with sustainable agriculture and wildlife conservation goals. - **Timeline:** Initial releases are slated to begin within weeks of the plant’s commissioning, targeting hotspots identified through USDA’s surveillance network. - **Long‑term outlook:** If successful, the program could serve as a template for combating other invasive pests threatening North American agriculture. #USDA #ScrewwormControl #SterileInsectTechnique #LivestockHealth #AgriculturalBiosecurity #Entomology #PestManagement #MexicoFacility #VeterinaryMedicine #newsababil360 [Read Full Article](https://news.ababil360.com/usda-mobilizes-180-million-sterile-flies-to-counter-new-world-screwworm-outbreak/)
