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Insect Dust Diatomaceous Earth - 4.4 lb

Item #: 50020-7

Our price: $16.95

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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 Lynne at 10/24/11 1:16 PM
    • Hi, If the cat licks his fur after I rub it into his fur, is this safe for him? How often should I reapply this after the first application? Is it safe to rub into areas where he sleeps? Will it cause any harm for him to breath this product? I notice we should wear a mask when applying, as I have a breathing problem, but what about the cat breathing this? Our cat came to us with a wheeze from the shelter, but since he's been with us it's gone away, but I still worry about dust affecting his breathing. Thank you~L.
    • Your cat should have no problem with exposure to diatomaceous earth. However, with any new product brought into your home, we suggest that you try it in a small amount first to see if your cat has any reaction. We have not received any reports of this over the years we have been selling DE.
      In our experience, the effectiveness of DE is realized mostly when it is applied to an area, such as your cat's bed or areas in the home the cat may frequent. Application directly to the fur is done by pet owners, but we believe the benefit is secondary when compared to controlling fleas in the nearby environment.
      Results of using DE are not immediate. It takes a few days or longer before you can expect a reduction in the insect population in your home. The effects continues over time. We reapply DE in certain areas of our home every 4 - 6 months.
    • Do you find this question helpful?  Yes  No
  • From Lauren at 8/31/11 11:45 PM
    • Is DE safe to apply around children since it is "food grade"? My child may have asthma too.
    • Yes. Diatomaceous Earth is safe to apply where children are active. You should apply DE in areas where the vacuum will not suck it up during regular cleaning, but otherwise there are no restrictions to its use. DE is safe for children and pets, and will not trigger your child's asthma.
      We have used DE in our home for several years and it has been very effective at controlling insects. My son has asthma and we have not noticed any adverse effects from using DE.
    • Do you find this question helpful?  Yes  No
  • From Jennifer at 8/24/11 10:34 PM
    • We have a cabin in the upper penninsula of Michigan, on an island. It is woodsy all around the cabin, but has a nice sandy beach. The problem is that we have ant mounds all along the edge of the woods onto the sunny sand. They are everywhere up and down the beach and the mounds seem to get bigger and bigger every year. I have even noticed that tons are crawling down a tree into one mound near the beach too. Some cottage owners have just accepted them, but they are getting on my nerves because I cannot enjoy sitting by the beach any longer. I want to kill them naturally so that no chemical will get into the lake or harm people/pets. I know this will be a process that needs to be done every spring/summer b/c the winters are harsh up there and the melting snow will wash away what we put out. Would I be successful to just shovel the ant hill into the lake? They need to be killed b/c I don't want them rerouted into the cabin.
    • I think your best defense is to secure your home as best as possible from the ants. This is achievable. The outdoor mounds may be beyond your control, since the mond is only the upper part of a network of tunnels.

      We also ahve a cabin in the woods, and we also have ant mounds in the ground right by our door. A few ant get in the house, but not often. We set out little piles of diatomaceous earth, the size of a teaspoon, in strategic areas along the ground floor of our cabin.. Every month or so we renew these piles since they get tracked off and vacuumed when cleaning the place.

      DE is not a spot kill product. It takes time for the process to work - the ants track it back to their colonies. Ant that come in contact will die within a couple days. Gradually the population diminishes. But we continue to keep some DE around even when we see no ants. It has been very effective, also for pill bugs and whatever else, and we used DE exclusively for insect pest control for many years.
    • Do you find this question helpful?  Yes  No
  • From Kerri at 8/4/11 6:08 AM
    • I actually have 3 questions.
      1. What are the instructions for hardwood and tiled floors?
      2. We have a child care center and our outdoor summer campers appear to be bringing the fleas inside with them. How effective would this be considering we vacuum the carpets at least once a day during the week.
      3. What does it do to the flea larva and eggs?
    • 1. you can apply DE on the hardwood or tile floor, just put it in discreet spots where people will not walk on it or spread it around.
      2. DE must be applied where it will not be vacuumed. you can apply DE in corners or locations where the vacuum misses.
      3. DE kills living insects by scoring their exoskeleton and dehydrating the insect. It does not effect larva.
    • Do you find this question helpful?  Yes  No
  • From Michelle at 7/25/11 5:40 AM
    • I am a wildlife rehabilitator and I am needing something very safe for the animals enclosures to control fleas and ticks. The fawns eat leaves and grass all the time. How safe is this product for this purpose?
    • Insect Dust (Diatomaceous Earth) is exactly the product you are looking for. It can be sprinkled in the animal enclosures and will not affect them. The fawns can safely eat grass that may contain DE, and they will not be affected. Yet the flea and tick population will be reduced, and if you keep at it, their populations can be eliminated entirely from the pens.
    • Do you find this question helpful?  Yes  No
  • From Rose at 6/28/11 5:43 AM
    • I recently noticed my 3 poodles have fleas.. and my family is also getting bit by the pesky critters. Is this safe to sprinkle on wood floors and human bedding? Also, once sprinkled do I need to wipe it up? I need my house treated but I'm not sure if I can just sprinkle it any and everywhere?
    • You can sprinkle Insect Dust (Diatomaceous Earth) anywhere you suspect flea or other insect activity in your home. We put out small piles (one teaspoon) in places where insects go but the vacuum cleaner won't pick up - behind furniture, on top of cabinets, on the bed frame under the mattress, and similar places.
      It is safe to sprinkle on wood floors or human bedding.
    • Do you find this question helpful?  Yes  No
  • From Marlene at 6/18/11 12:48 PM
    • Our neighbors walked away from their home. We are noticing cockroaches around the exterior of our property. We also have a lot of lizards which we do not want to hurt or kill. Do you think spreading the diatomaceous might harm the lizards in an effort to kill the cockroaches?
    • The diatomaceous earth will harm the cockroaches but it will not harm the lizards.
    • Do you find this question helpful?  Yes  No
  • From Ed at 6/2/11 4:18 PM
    • Can this product be used on a beach for ants? Can it in any way cause harm to the fish or birds that are on our lake?
    • Diatomaceous earth can be used on a beach and will pose no threat of harm to any of the fish or birds. It is entirely safe to use in this application.
    • Do you find this question helpful?  Yes  No
  • From April at 5/8/11 6:58 PM
    • Is this Amorphous DE. or Diatomite DE? I read there are different types of DE and cannot find any specs on ingredients or type for this product? I understand one is known to cause cancer, can you clarify?
    • Amorphous DE is food grade, freshwater diatomaceous earth.
      "Pool filter" grade DE has been heated to the point ot melting, making it much more crystaline and abrasive. As a result it is irritating to lungs and other soft tissue, making it carcinogenic.
      The DE we sell is food grade, and safe for applications in the home, safe around children safe for use on pets, and safe for use in the garden as a slug repellent.
    • Do you find this question helpful?  Yes  No
  • From Tabatha at 4/9/11 1:44 AM
    • We are having Carpenter Ant problems in our house, will the ants take this back to their colony killing it off or should we use something along with DE?
    • Carpenter ants will not carry DE back to their nests. DE will kill carpenter ants which come in contact with it, but the effect is not immediate. There are a few products on the market which contain boric acid, which will have some effect on the colony, but boric acid is a poison and needs to be handled with care. In some cases, products containing boric acid need to be applied professionally.

      We use DE exclusively for controlling carpenter ants. It has been effective over time.
    • Do you find this question helpful?  Yes  No

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