Invasive Hammerhead Worms Resurface in North Texas After Heavy Rains

Recent storms across North Texas have brought more than just rising water levels, residents are also spotting a growing number of invasive hammerhead worms, a toxic species that poses risks to both people and the environment.

Native to Southeast Asia, hammerhead worms are easily recognizable by their flat, spade-like heads and long bodies, which can stretch up to 12 inches. While their appearance is striking, experts are warning the public to steer clear, as reported by The Dallas Morning News.

These worms are toxic to humans and pets. Contact with their secretions can cause skin irritation, and they are known carriers of parasites. More concerning for ecosystems, however, is their appetite, they prey on earthworms, a vital species for healthy soil and agriculture. “Their impact on soil health can be significant,” notes the Texas Invasive Species Institute (TISI), which tracks and manages reports of the worms across the state.

One of the most troubling aspects of the hammerhead worm is how it reproduces. The species can regenerate and multiply asexually. If someone attempts to kill the worm by cutting it in half, each piece can regenerate into a new worm within days.

If you encounter one, do not touch it directly. Experts recommend the following safe disposal methods:

• Spray with a mix of citrus oil and vinegar
  
• Soak in salt or white vinegar
  
• Freeze in a sealed plastic bag for 24 to 48 hours
  

Always use gloves when handling the worm, and wash your hands thoroughly afterward to avoid exposure to toxins.

Residents are encouraged to report sightings to the Texas Invasive Species Institute via its official website. Tracking these sightings helps researchers better understand how the species is spreading and informs management strategies.

As the region recovers from recent rainfall, environmental experts urge the public to stay vigilant. While small in size, the hammerhead worm’s presence is a reminder that invasive species can quickly become a big problem.