Invasive ‘Jumping Worms’ Reported In Southbury: What To Know

SOUTHBURY, CT — An invasive species known as “jumping worms” has been reported in Southbury, part of a broader spread across Connecticut.

State data shows the worms were previously reported in Southbury in 2021, according to a town-by-town breakdown of sightings.

Asian jumping worms — scientifically known as Amynthas agrestis — are an invasive species known for damaging soil and rapidly spreading across the United States.

They get their name from their aggressive, thrashing movement and ability to “jump” when disturbed.

Jumping worms can significantly damage soil by stripping it of nutrients and leaving behind a loose, grainy material that makes it difficult for plants, grass and gardens to grow. Over time, that can impact landscaping, gardens and even forest ecosystems, experts say.

Unlike typical earthworms that help aerate soil, jumping worms consume large amounts of organic material, degrading soil quality.

Experts say populations may be higher in Connecticut this year due to a mild winter and early spring conditions that helped protect worm cocoons and speed development.

The worms reproduce quickly and can generate multiple generations in a single season, allowing populations to grow rapidly once established.

What residents can do

While there is no way to fully eliminate the species, residents can take steps to slow their spread:

• Avoid moving soil, mulch or plants from one location to another if an infestation is suspected
• Inspect potted plants, root balls and soil before planting or sharing with others
• Ask if bulk mulch or compost has been heat-treated to kill worm cocoons
• Clean gardening tools, shoes and equipment after working in soil
• If worms are found, place them in a sealed plastic bag and leave it in the sun or dispose of them in soapy water

Experts say preventing the spread is the most effective way to manage the invasive species.