06/12/2026
SCREWWORM INFORMATION⬇️:
We're sure you've seen a number of headlines about New World Screwworm (NWS), but here we are to provide you a few more details to help you stay prepared. Though NWS has not yet been reported in OK, we must stay vigilant in our efforts to stop the spread.
🪰New World Screwworm (NWS) is a fly larvae that is laid in body orifices & wounds of warm-blooded animals. NWS feeds on LIVING tissue, not just dead/decaying & thus all wounds are at risk of infection & further damage. Largely, we see the larvae in veterinary patients - however, humans are still at risk. NWS is a TREATABLE pest, but prevention is key as treatment carries both economic & time costs.
Things to watch for:
- Wounds (fly strike, lacerations, castration wounds, dehorning wounds, etc.) both new & old
- Fly larvae ("maggots") in wounds &/or flies hanging out near wounds🪱
What to do:
- Fly prevention is a MUST!!!!!! Sprays, ear tags, back rubbers, etc. will all be great tools for keeping fly populations down.
- Inspect herds/flocks daily for any wounds. If you observe any wounds, keep a close eye on those animals/keep the wounds clean & alert your veterinarian if you notice larvae infestation.
- Maintain a valid Veterinary-Client-Patient-Relationship (VCPR) with your veterinarian, that way treatment is efficient & timely.
- Notify ODAFF or your veterinarian if you suspect NWS infestation in any animals
We're in contact with OSU Extension, as county offices should be receiving sample kits for producers & veterinarians.
Our staff is here & ready to help, whether it be answering questions or submitting samples. To repeat the above, NWS is a TREATABLE pest but can have negative consequences on your herds/animals. Stay vigilant & call us with any questions you may have.
Don't hesitate to call! 580-759-3605