# Flesh-eating screwworm threatens US wildlife

> Hunters can spot New World screwworm before it spreads to livestock.
- Title: Flesh-eating screwworm threatens US wildlife | Shortify
- Summary: Hunters can spot New World screwworm before it spreads to livestock. US hunters help detect New World screwworm infestations in wildlife to prevent livestock…
- Keywords: new world screwworm, hunting, livestock, wildlife, texas, florida, deer, elk, sterile flies, screwworm infestation, usda, u.s. fish and wildlife service
- Source: The Conversation — https://theconversation.com/flesh-eating-screwworm-is-spreading-in-the-us-threatening-livestock-and-wildlife-hunters-can-be-the-first-line-of-defense-292891
- Author: Eric Michel
- Read time: 1 min
- Topics: new world screwworm, hunting, livestock, wildlife, texas, florida, deer, elk, sterile flies, screwworm infestation, usda, u.s. fish and wildlife service
## New World screwworm spreading
Millions of hunters will be in fields and wooded areas where they can help spot and report signs of screwworm.
## First US infestation in 50 years
For the first time in over 50 years, New World screwworm is spreading on U.S. mainland, threatening livestock and wildlife.
## All warm-blooded animals at risk
New World screwworm attacks all warm-blooded animals including deer, elk, small game and waterfowl.
## Hunters as early warning system
Hunters can be the first line of defense by spotting and reporting screwworm infestations in wildlife.
## Screwworm lifecycle
Screwworm larvae feed on living tissue, lay eggs in wounds, and become flies within 21 days.
## Historical economic impact
In the 1950s, U.S. livestock producers lost up to US$100 million annually to screwworm, equivalent to over $1 billion today.
## US eradication in 1966
The U.S. eradicated New World screwworm from mainland by 1966 using sterile male flies and treating infected animals.
## Florida Key deer infestation
In July 2016, Florida Key deer population of 800-1,000 was infected with New World screwworm.
## Screwworm back in US
In June 2026, New World screwworm was detected in Texas and New Mexico with 116 cases by Nov. 5, 2026.
## Hunters as surveillance
11.5 million hunters track wildlife and harvest 6 million deer during 2026-27 season.
## What to watch for
Hunters should check for wounded animals with maggots and unusual behaviors like restlessness.
## Key takeaway

US hunters help detect New World screwworm infestations in wildlife to prevent livestock and wildlife deaths.