A Guide to Diatomaceous Earth Uses

Try Diatomaceous Earth as a Home Remedy for Lice Control on Your Homestead

Diatomaceous earth uses

By Ken Scharabok – Diatomaceous Earth uses vary, but generally it can be safely fed to animals or used as a dust or spray for parasite control. This action is strictly mechanical. The microscopically sharp edges of the product contact the offending organisms and pierce their protective covers. The parasites then dry out in a few hours and die.

Diatomaceous Earth is an organic product mined in the west. It was formed from trillions of microscopic one-celled algae called diatoms, which wove tiny shells for themselves out of the silica they extracted from seawater. As the diatoms die, these shells settled in deposits at the bottom of the ancient oceans. When these waters dried up and the seas receded, the deposits were fossilized and compressed into a soft, chalky rock which is surface mined and crushed into a powder looking much like flour.

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Diatomaceous Earth particles are characterized by their irregular shapes, generally spiny structures and pitted surface area. They average only 5 to 20 microns in diameter, yet have a surface area several times greater than any mineral with the same particle size.

diatomaceous-earth-uses

Diatomaceous Earth Uses

  • As a dust against fleas, lice and other external pests on dogs, cats, and livestock. Use full strength as a talcum powder to rub into dog or cat coats. It can be sprinkled on pigs or added to a dust bath for chickens. It works great as a chicken lice treatment.
  • Diatomaceous Earth can be used as a fly deterrent spray or dust in pastures, in and around trees and shrubs, grounds and buildings and manure piles. Due to its fine powdery nature, DE is best applied at night when the air is calm. Dust on 15 to 40 pounds per acre (20 to 25 pounds in still air). For liquid spray, mix two pounds per gallon of water and agitate while using.
  • When used on stored grains and seeds, Diatomaceous Earth can replace chemicals like malathion. The most effective protection is achieved if grain or seeds are treated immediately after harvest by lightly coating the outside of substantially all kernels or seeds with dust. This is best done by applying the powder directly as it is moved into storage. Use 4 oz. per 100 pounds. Barley, corn, buckwheat, oats, rye, rice, wheat, sorghum and mixtures of these grains may be treated in this manner.
  • Dusting yards like pastures or animal enclosures can work against a wide variety of lawn pests. While spreading is suitable for grass areas, spraying should be used on shrubs or other plants.

To help the Diatomaceous Earth cling to plants, place a teaspoon of flax soap (available at many paint supply outlets) in a quart of warm water. Put a ¼ pound of Diatomaceous Earth in a 5-gallon sprayer, add the flax soap mixture and top off with water. Keep the solution agitated when using it.

  • If you are wondering how to care for apple trees and other fruit trees, sprinkle a liberal amount of Diatomaceous Earth on the ground around the trunks. Also paint the trunks with a mixture of flax soap, Diatomaceous Earth, and water. This protective buffer zone will impede the migration of various fruit tree flies and worms as well as Japanese beetles.

You may need to spread Diatomaceous Earth several times a year for continued control. Due to its shape, use approved masks and goggles to keep particles out of the nose and eyes, as the sharp edges can irritate the eyes and respiratory system.

Diatomaceous Earth Uses

Not Harmful to Earthworms

Diatomaceous Earth isn’t harmful to earthworms, as they are structurally different from insects. Some earthworm farmers use Diatomaceous Earth in the bedding material to control parasites in it and in the worms.

For internal use, suggested feeding rates are 1 percent of weight of total dry ration or free choice for beef cattle; calves, 4 grams in morning milk; dairy cattle, same as beef cattle; chickens, 5 percent in feed; large dogs (over 55 pounds), 1 tablespoon per day; small dogs and cats, 1 teaspoon per day, adjusted for size; goats, 1 percent in grain; hogs, 2 percent by weight in feed ration; horses, 5 ounces (1 cup) in daily grain ration and sheep, 1 percent in ground grain.

Organic beef rancher Joel Salatin reports excellent results by using a free choice mixture of one part stocker salt, one part natural kelp and one-half part Diatomaceous Earth.

I hope this article helps you discover all the amazing Diatomaceous Earth uses for your homestead.

Originally published in Countryside July/August 1999 and regularly vetted for accuracy.

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Comments
  • Just for our first baby chicks 2 weeks ago. The only DE I have available locally is mixed with some type of clay. Is that safe? I can’t find just plan DE.

    Reply
    • I bought mine from Amazon. food grade DE is what you want.. not garden DE

      Reply
    • You should be able to find food grade DE powder almost anywhere you would buy your chicken feed, or any other livestock/poultry feed. I get mine from my local Agway store but they Stock it in the growing section with potting soil etc. Just ask for it.

      Reply
  • Manna Pro’s DE is a pure form of DE. It is registered as an insecticide and not mixed with filler or labeled as an anti-caking agent. It is sold in 4 pound bags.

    Reply
  • Been using it on beef cattle and in my horses feed for years now. Works well…even on lice.

    Reply
  • Great article..there are a lot of misconceptions out there about the safe use of DE.

    Reply
  • Please tell people not to use pool grade DE, as this can be very dangerous for animals and people.

    Reply
  • Why feed it to animals? Surely as parasitic worms are similar in structure to Earth worms they will have no effect.

    Reply
  • No.

    First off you have to use airway protection to spread it. It’s basically microscopic broken glass which is how it kills bugs in the first place. YOU can wear airway protection. Can your animals? No. So it’s NOT safe to use with them.

    Especially with something like a dust bath!

    Secondly, if it’s broken glass in your lungs it’ll be broken glass in your intestines.

    Thirdly it hurts friendly bugs as well as pests. Think “pollinators.”

    Fourthly it has to be MINED. Which means it is NOT ECO-FRIENDLY.

    I used to think it was awesome too. I stay away from it now.

    Reply

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