10/22/2026
Be Alert, Not Alarmed!!
While New World screwworm flies are less active when daytime temperatures fall below 65°F, occasional warm days can allow fly activity to increase. Cooler temperatures DO NOT eliminate the risk of NWS fly activity.
Stay vigilant and continue watching for signs of New World Screwworm infestation in open wounds on animals. Your awareness helps protect New Mexico’s livestock and wildlife. Look for:
- Open wounds that worsen or do not heal
- Animals exhibiting restlessness, licking or biting at a wound, or isolating themselves
- Visible maggots in wounds
- Swelling, discharge, foul smell or unusual tissue deterioration
For all NWS information related to New Mexico, visit ScrewwormNM.org.
