An earthworm is a terrestrial invertebrate that belongs to the phylum Annelida. They exhibit a tube-within-a-tube body plan, are externally segmented with corresponding internal segmentation, and usually have setae on all segments. They occur worldwide where soil, water, and temperature allow.

Are earthworms and dew worms the same thing?

Dew worms or night crawlers are common names for a species of earthworm that is active at night but also surface and crawl about during wet or rainy weather. They often leave casts on the surface which make lawns bumpy and uneven. Dew worms are more common on older, shaded or heavily watered lawns.

How do I get rid of dew worms in my yard?

Sprinkle a generous layer of sharp sand over the affected lawn. While nonlethal, it will make them think twice about venturing to the surface. If you insist on using chemicals, the active ingredient carbaryl is approved for use against dew worms.