Jumping Worm
Jumping worms can significantly alter the soil structure and nutrient cycles in forested ecosystems. They damage the roots of trees and plants, leading to a decline in native vegetation abundance and diversity.
Common Name: Jumping worm
Scientific Name: Amynthas spp. & Metaphire spp.
Native Range: Eastern Asia
Background
There are three species of jumping worms that are very similar in appearance. On average, mature worms are 4-5 inches long with dry, smooth bodies. The clitellum (a band that circles the body) is white or gray in color and smooth to the body. When handled, jumping worms will thrash or wiggle violently. Mature worms are most likely to be found from August to September.
Habitat
Jumping worms can occur in a variety of sites from forests to suburban parks or backyards. They are typically found in the upper soil layers or leaf litter.
NYS Distribution Map
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Identification
Jumping worms display a crazy, thrashing behavior when handled. The clitellum (band) is smooth to the body and white or gray. Invaded soil will become granular and resemble dried coffee grounds
Impact
Jumping worms reproduce asexually, meaning one individual can create an entire infestation. Their rapid growth and aggressive nature allow them to easily outcompete other European earthworms. Jumping worms can significantly alter the soil structure and nutrient cycles in forested ecosystems. They damage the roots of trees and plants, leading to a decline in native vegetation abundance and diversity.
Prevention and Control
Prevention is critical. Once established, there are no known management strategies for this species. Do not use jumping worms for bait, composting or gardening.
