Don't worry about sanitation: worm castings are clean, rich in nitrogen and other nutrients and improve soil structure.

They crossed the ridges, looking down on the patterns of opposing trenches, like worm castings on a putting green.

Then he combed the moss as if it were hair, removing every scrap of twig and grass, worm castings, birds' feathers, pieces of bark.

He visited Stonehenge for the first time, examining how worm castings had buried the megaliths over time.

Earthworms "till" the soil, and their worm castings are among the best fertilizers and soil conditioners.

The worm bed devours the food so fast it doesn't have time to smell, and the worm castings make excellent compost.

Some of these worm castings are the only fossil record we have of these soft-bodied creatures.

Good sources include corn gluten, worm castings and (herbicide free) grass clippings.

When the critics are worm castings, Bush and Perry will be fondly remembered.

Worms discard wastes that create worm castings containing undigested materials where bacteria and other decomposers gain access to the nutrients.