Flea Guide: natural home flea remedies and retail flea treatments

Worth a Look:    Dogs Love Wild Weenies        Yummy Doggie Treats        Customer Pet Favorites

Diatomaceous Earth Organic Flea Killer

Diatomaceous Earth Organic Flea Killer Gets Rid of Dog & Cat Fleas


This page may contain affiliate links. Click here to read my affiliate policy.

Diatomaceous Earth food grade gets rid of dog and cat fleasHow to use Diatomaceous Earth (food grade) as a natural way for getting rid of fleas on your dog, in the house and in your yard.

Diatomaceous Earth is an insect killer. Diatomaceous Earth was discovered in 1837, and is a naturally occurring soft rock that easily crumbles into a fine whitish powder. Texture and feel is similar to pumice powder.

Diatomaceous Earth is very light in weight because of is extremely high porosity.

Diatomaceous Earth consists of fossilized remains of diatoms (diatomite) which is a type of hard-shelled algae. Oldest known uses of diatomite are as a very mild abrasive. As an abrasive it’s been used in toothpaste, metal polishes, and also in some facial scrubs.

Diatoms (DE) are the grass of the oceans and lakes. Just as grass is the staple food of earth animals, Diatoms (algae) are the food of the ocean or fresh water grazers. When magnified 7000x, Diatomaceous Earth looks just like spiny honeycombs.


ONLY USE FOOD GRADE Diatomaceous Earth

Never use Pool Filter Grade or any Diatomaceous Earth other than those labeled FOOD GRADE for your pets or yourself. It can poison or kill them.


Used as an insecticide, Diatomite’s fine powder absorbs lipids from the waxy outer layer of insects’ exoskeletons, causing them to dehydrate. When Fleas come into contact with Diatomaceous Earth, they basically die from dehydration.

Diatomite at times is used to de-worm both animals and humans, and can be used to help control and eventually eliminate cockroach and Flea infestations, and has been used for controlling Bed Bug infestations.

Natural freshwater diatomaceous earth is used in agriculture for grain storage. Freshwater diatomite can be used as a growing medium in hydroponic gardens.

Food Grade Diatomaceous Earth is/has:

  • EPA approved to be mixed with grains to control mealworms and other pests
  • EPA approved against indoor and outdoor crawling insects
  • USDA approved as an anti-caking agent for animal feed
  • Been used for at least two decades as a natural wormer for livestock

Home Use of Diatomaceous Earth

When you distribute Diatomaceous Earth (food grade) in and around your yard the following insects will be affected:

Fleas, ticks, caterpillars, termites, scorpions, earwigs, aphids, fruit flies, cut worms, army worms, ants, fire ants, snails, cockroaches, bed bugs, centipedes, silverfish, and beetles.

Diatomaceous Earth (food grade) will not destroy earthworms if you apply the powder to the top of the soil and let the worms work it into the soil themselves.

Outside and Structural Use of Diatomaceous Earth

If you sprinkle Diatomaceous Earth (food grade) around the foundation of your house, it keeps crawling insects from coming inside the structure. Reapply after each rain.

During the actual building stage of a house, barn or other structure, distribute Diatomaceous Earth to the inside of the walls before you put in insulation to ward off insects as they enter.

Only use Food Grade Diatomaceous. Other grades must be kept away from pets.


My response to common questions and concerns about using Diatomaceous Earth on and around pets.