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Extension > Garden > Diagnose a problem > What insect is this? > Garden Pests > Insect relatives: Spiders, millipedes, centipedes, sowbugs, etc. - 2 inches and larger > Earthworms

Earthworm
Photo Credit: David Shetlar, Ohio State University

Earthworms
Phylum Annelida
Size: 1 to 4 inches long

Where/When: They tunnel in the soil and may come up to the surface on rainy days especially during spring.

Significance: Beneficial to gardens by aerating and fertilizing the soil.
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