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Insect Dust Diatomaceous Earth - 4.4 lb

Item #: 50020-7

Our price: $16.95

Video available below

Insect Dust kills fleas, ants, cockroaches, bedbugs and all crawling insects around your home. Safe and effective, made from natural Diatomaceous Earth. This 4.4 pound bag treats 1,800 square feet. read more

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Our Price: $16.95


Use Insect Dust to eliminate crawling insects around your home. Our diatomaceous earth comes in the form of a chalky powder, and is the natural fossilized remains of diatoms, a type of hard-shelled algae. Diatom particles are very small and sharp – but only harmful to the small exoskeletons of insects. Insects cannot become immune to its action, as it is a mechanical killer – not a chemical one. Because it is a light dust, diatomaceous earth easily clings to the bodies of insects as they crawl over it. The tiny diatom particles then cut into the waxy coating of insects and they dry out and die of dehydration within 48 hours.

Food-Grade Diatomaceous Earth is an all-natural product that is so safe it can be sprinkled around your vegetable patch, or rubbed right into your dog's fur.

What Insects Does It Control?

  • Fleas
  • Ants
  • Ticks
  • Silverfish
  • Cockroaches
  • Bed bugs
  • Carpet beetles
  • Spiders
  • Earwigs
  • Spider mites
  • House flies
  • Slugs and snails

For Indoor Use:

Lightly coat a thin layer in areas where insects are found or may hide, such as kitchen cupboards, behind and under appliances, baseboards or drain pipes. For carpets, lightly sprinkle the Insect Dust over the carpet, and leave for 2-3 days before vacuuming.

You can leave the dust in place until you no longer see any signs of insects in that area, at which point you can clean it up.


Thoroughly dust floor, carpets and bedding in and around pet's sleeping areas, as well as surrounding baseboards, cracks and crevices. Safe to use around your pets - it can be rubbed right into your dog's fur.


Take apart bed and dust joints and channels. Dust any hollow tubing and the interior framework as well as the mattress and all cracks in the room. Use a turkey baster or duster to apply clouds of the dust over the affected area. Leave the dust for a few days. It is still safe to sleep in your bed even while the dust is present.


Lightly dust in and around kitchen and bathroom plumbing, along baseboards and wherever else silverfish are found.

Carpet Beetles

Dust along baseboards, carpet edges, under carpet, furniture and inside closets.

For Outdoor Use:

Lightly coat a thin layer of diatomaceous earth on areas where insects are found, such as patios, door frames, foundations, sewer pipes and drains. Apply as a barrier around plants, trees and garden beds. For best results, reapply the Insect Dust after heavy rainfall.


Thoroughly dust areas where flies frequent, such as livestock pens and kennels. It can be applied to livestock coat as an insect repellent/contact insecticide. DE can also be added to the food of pets and livestock. The DE helps as a de-worming agent for livestock, and it ends up in their dung. Flies lay eggs on the dung which hatch into maggots, which are then killed by the DE. This is an effective method for fly control, especially on farms and homesteads, and in outdoor areas where animals are present.

Fire Ants

Sprinkle diatomaceous earth directly on the ant mound, or mix with water to saturate the mound. It can also be sprinkled along ant trails. The ants will track the DE back to their nests where the colony will be exposed to its abrasive action.

Slugs and other garden pests

Apply as a barrier around plants and garden beds. Reapply after rain. Any diatomaceous earth that washes into soil will continue to benefit your garden, since it acts like vermiculite in retaining water for future slow release. Our diatomaceous earth is OMRI listed for organic use.

Diatomaceous earth will not harm worms or any of the beneficial microorganisms in the soil.

Lice control for chickens

Lice are a common scourge around chickens and can lower their vitality resulting in fewer eggs and disease. Set a "dusting box" of DE in the corner of the coop and chickens will continually apply themselves with DE. This will reduce or eliminate lice within a few days.

To purchase a dispenser tube, click here


This Food-Grade Diatomaceous Earth is uncalcined amorphous silica, which comes from natural freshwater deposits in the USA. The freshwater naturally occurring diatomaceous earth deposits that are designated Food Grade by the FDA have less than 1% crystalline silica. These deposits are primarily amorphous silica which is harmless when ingested and is commonly used in feed and food industries. Insect Dust is certified organic by the Organic Materials Review Institute.

Insect Dust is registered as an insecticide with the EPA, so it is required to have a generic health warning on the bag, despite its safety.

Environmental Health Coalition refers to Diatomaceous Earth as one of the least toxic insect controls on their "Home Safe Home" fact sheet about safe household cleaners and indoor pest control.

Professor Stuart Hill at McGill University describes Diatomaceous Earth as non-toxic and feeling like talc when you touch it. He says that if you are going to apply large quantities, you should wear a face mask to avoid inhaling it. However, he mentions that inhaling common road dust is probably more harmful than inhaling Diatomaceous Earth.

Please note that food-grade diatomaceous earth should not be confused with "pool grade" diatomaceous earth. Diatomaceous earth used in pool or water filtration contains DE that has been chemically treated and heated making the silica crystalline which is a dangerous respiratory hazard and harmful to the health of humans and animals.

Read our article Diatomaceous Earth: Non-toxic Pest Control for Your Home and Garden to learn more.

100% Satisfaction Guarantee

We want you to be completely satisfied with every purchase you make. If you are in any way dissatisfied with a product you ordered, we'll exchange it, replace it or refund your money within 30 days of purchase. Simply email us the problem, and we'll take care of you. Certain products have extended warranties (up to 50 years!) that are listed on the particular product page. Please call us at 1-888-451-6752 if you need further clarification.

Additional Information

Weight 4.4 pounds
Coverage 1800 square feet
Key Feature Safe, non-toxic diatomaceous earth for crawling insect control
Origin Made in the U.S.A.

Shipping Information

Shipping Details:
Insured against damage or loss while in transit
This Product Ships To:
US Lower 48
Ships Via:
Fedex, UPS, or USPS

Questions about the Insect Dust Diatomaceous Earth - 4.4 lb

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  • From Tina at 8/7/13 1:45 AM
    • After reading through the info, reviews, and questions, I would like clarification on this products effectiveness. I understand it cuts the exoskeleton. If I'm not mistaken, the pests do not carry the powder with them, therefore, it only affects the pest (roaches) directly. I don't know the 'habits' of roaches, though. Do they have nests, and if so, this product would not be effective in that sense, correct?

      I would much rather use a natural product but I can not handle having pests in my home!

      Thank you in advance for your reply.
    • You are correct in how DE works. To some extent, DE is tracked to nests by the carrier insects, but the most lethal dose is going to be where you apply the DE.
      In our home, DE is applied in discreet areas where the vacuum doesn't usually reach. We also know the areas of most insect activity, so these places get an extra spoonful. Ledges, the tops of cabinets, under the dishwasher, on the ledge of the bed frame, etc. are examples. For roaches, be sure to apply DE on top of the cabinets or other high places.
      If you follow a course of applying DE in your home, you will see the insect population drop within a week, and over time you will have few to no insects in your home indoor environment. We have experienced this first hand!
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  • From Jenni at 8/18/13 7:46 PM
    • Hello, I have some pests in my home. Wood lice, house centipedes ,silver fish and now a biting nymph of the masked hunter as well as the adults. Should I put this DE in my attic and in my dirt basement or just my main living areas?
      Thanks for your time.
    • You should apply DE in areas in your attic and basement as well as your main living areas. Apply DE in places where it will not be disturbed by the vacuum or foot traffic. Ledges where insects travel are good locations. Avoid placing in moist areas. Over time you will notice a reduction in the insect population in your home.
    • Do you find this question helpful?  Yes  No
  • From linda at 9/27/13 8:48 AM
    • Been using de, is it normal to be finding dead fleas around the house?
    • Yes. Insects coming into contact with DE will dry out and die. Some may appear in areas they used to frequent and you will need to sweep up the insect bodies.
    • Do you find this question helpful?  Yes  No
  • From Tod at 10/10/13 9:46 PM
    • If I rub DE into my cats fur and we all know cats are big on licking themselves to stay clean. Will DE harm my cat by licking itself, hence licking up the DE?
    • Your cat will not be harmed by licking DE from his fur. DE is safe for pets even if it is ingested.
    • Do you find this question helpful?  Yes  No
  • From Marilyn at 10/31/13 12:48 AM
    • We are up to our eyeballs in Brown Marmorated Stink Bugs. Will this work on these stink bugs?
    • Yes. DE is an ideal way to control stink bug infestations.
    • Do you find this question helpful?  Yes  No
  • From angela at 10/31/13 6:32 PM
    • I live in an apartment and have a dog. is this safe to put in my cabinets as they go all the way to the ceiling? also my dog has sensitive skin and allergic to fleas. is this safe to put on him?
    • It is safe to put DE in your cabinets, but it only makes sense if you have bug activity in the cabinets, which is not usually the case. You can put DE anywhere you suspect that bugs will come into contact with it. Just try to place DE in spots where the vacuum will not pick it up during routine house cleaning.
      If your dog has skin sensitivity issues, then it is a safe practice to try applying a small amount of DE to one area of the dog's fur. Watch for any possible reaction. As a general rule, it is safe to use DE on pets, but in your case it's best to take a cautious approach.
    • Do you find this question helpful?  Yes  No
  • From Laurie at 11/7/13 12:33 PM
    • Hello. I was going to ask about safety to my turtles, and see that someone already asked. Have you gotten any further info on this from customers? I have several and they will be in the yard.

      Also, does DE work in cold weather? I want to treat my backyard and if so, how to spread it, or should I lay out "lines" of it?

    • We have no aadditional information about the safety of turtles exposed to DE. However, we feel it is unlikely they will be adversely affected.

      Yes, DE will work in cold weather, but if it becomes frozen it will lose effectiveness until thawed. If you are treating your yard as a flea control measure, then it can be broadcast. But when broadcast, its effectiveness can be compromised by wind which may disperse it, and rain. If you are wanting to use DE to prevent insects from entering your home, then it is best to apply it in lines in areas where insects frequent or where they may try to access the indoors.

      When you are cleaning house. look for evidence of insect activity such as bits of insect debris. This will help you zero in on the best locations to apply DE.
    • Do you find this question helpful?  Yes  No
  • From Ginger at 12/16/13 10:53 AM
    • We just bought a home and have seen a few large roaches. (Or palmetto bugs as they refer to them here in FL) I want to use this to kill off the roaches and also keep other spiders/bugs away. I read through several pages of Q&A and found that it won't hurt lizards (which is very important to my kiddos), but have not seen anything in regards to frogs. We have some awesome Cuban tree frogs that live in our cable boxes on our house right outside our doors. Do you know if frogs/toads are safe around the DE? thanks so much!
    • DE will not harm frogs, snakes or earthworms. The tiny sharp diatoms scratch the insects waxy coating resulting in dehydration.
    • Do you find this question helpful?  Yes  No
  • From john at 3/14/14 10:35 AM
    • Does DE kill Dust Mites?
    • Yes. DE is an effective way to lower the dust mite population in your home.
    • Do you find this question helpful?  Yes  No
  • From Bridget at 4/21/14 1:41 PM
    • Please can you tell me if it kills chiggers.
    • Yes chiggers can be controlled with a broadcast application of diatomaceous earth.
    • Do you find this question helpful?  Yes  No

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