Use diatomaceous earth to kill sand fleas in the home, yard or garden. This naturally occurring compound dries out the sand fleas and kills them within a few days. Apply food-grade diatomaceous earth in infested areas as a safe alternative to chemical pesticides.Continue Reading
Sprinkle diatomaceous earth on dry sand and dirt, as it does not work as effectively in moist areas. For indoor fleas, apply a bit of diatomaceous earth on the carpets, and let it stand for 24 hours. Apply it overnight to prevent lifting the earth from the carpet as you walk.
In outdoor areas, let the diatomaceous earth blend in with the dirt, where it can continue to work. Indoors, use a vacuum to remove the diatomaceous earth from the carpet. Go over the area a few times to ensure you remove all the diatomaceous earth and fleas.
Apply diatomaceous earth to outdoor areas that continue to develop sand flea infestations. Indoors, sprinkle diatomaceous earth in corners, along walls and in other places where fleas can hide. Re-treat the entire carpet each night if the flea infestation persists, and vacuum the area to remove dead fleas and eggs.