ST. MARY PARISH, La. — Residents across St. Mary Parish are being urged to stay alert after reports of invasive “hammerhead worms” appearing in yards and gardens throughout the area.
The unusual-looking worms, known for their wide, hammer-shaped heads, are not native to Louisiana and can pose risks to both people and the environment.
Experts say these worms produce a toxic substance called Tetrodotoxin, which can cause skin irritation if touched. While not considered deadly to humans through casual contact, officials recommend avoiding direct handling.
More concerning is their impact on local ecosystems. Hammerhead worms prey on earthworms, which play a vital role in maintaining healthy soil. A growing population could negatively affect gardens, landscaping, and agriculture in the region.
Residents are advised:
Do not handle the worms with bare hands
Do not cut them, as they can regenerate
Use salt, vinegar, or rubbing alcohol to eliminate them safely
Dispose of them in a sealed container
Pet owners should also be cautious, as ingesting these worms may cause illness in dogs or cats.
Local officials say increased rainfall and warm temperatures may be contributing to the rise in sightings.
Anyone noticing large numbers of these worms is encouraged to monitor their property and take proper precautions.
