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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 ants, fleas, cockroaches, bed bugs and other crawling insects around your home. Safe and effective, made from all-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. 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. 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. Insects cannot become immune to its action, as it is a mechanical killer – not a chemical one.

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

What insects does it control?

  • Fleas
  • Ants
  • Ticks
  • Cockroaches
  • Bed bugs
  • Silverfish
  • Beetles
  • Earwigs
  • Grasshoppers
  • Spiders
  • Aphids
  • Spider mites
  • House flies
  • Tomato hornworm
  • Slugs

Indoor Use:

Lightly coat a thin layer in areas where insects are found or may hide. For example: 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.

Leave the insect 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 to do its job for a few days. It is still safe to sleep in your bed even while the dust is present.


Lightly dust under the sink, inside drawers, along baseboards, and wherever else silverfish are found.

Carpet Beetles

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

Outdoor Use:

Lightly coat a thin layer of diatomaceous earth on areas where insects are found such as patios, window sills, door frames, foundations, sewer pipes and drains. Apply as a barrier around plants, trees and garden beds. Diatomaceous earth is most effective when kept dry. For best results, reapply after heavy rainfall.

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. Insect Dust is OMRI listed for use in organic agriculture.

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.


Insect Dust Diatomaceous Earth comes from a naturally occurring freshwater deposit in the USA. Our diatomaceous earth is uncalcined amorphous silica, which is harmless when ingested and commonly used in animal feed.

Insect Dust Diatomaceous Earth is certified for organic use by the Organic Materials Review Institute (OMRI).

The FDA lists Diatomaceous Earth as "Generally Recognized as Safe".

Environmental Health Coalition refers to Diatomaceous Earth as one of the least toxic insecticides for household pest control.

Note: Food grade diatomaceous earth should not be confused with "Pool Grade" diatomaceous earth, which is treated with heat, causing the formerly amorphous silicon dioxide to assume crystalline form. Do not use pool-grade diatomaceous earth for pest control.

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. EPA-registered. OMRI Certified Organic.
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 & Canada
Ships Via:
Fedex or UPS

Questions about the Insect Dust Diatomaceous Earth - 4.4 lb

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  • 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 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 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 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 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 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 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 Sandi at 4/6/12 8:17 AM
    • I am looking for something that would be safe to combat roaches ON the kitchen counter. Could DE be used for this if we did not place food directly on the counter after application? Is it safe to put inside the cupboards with dishes, etc? Any other suggestions other than those already cited in the web site?
    • Yes, it is safe to apply DE in the places you have described. One other spot to apply DE is on top of the cupboards, if there is a space. Remember, DE does not kill instantly on contact, it takes at least a few days to start being effective, and if yo have a persistent roach problem then you may want to leave DE in discreet areas permanently. (In places like the tops of cupboards, one application of DE will last indefinately since this space is rarely vacuumed.)
    • Do you find this question helpful?  Yes  No
  • From elizabeth at 5/1/12 10:55 PM
    • does it work for bed bugs???????????????????
    • Yes. Diatomaceous earth will kill bedbugs. You need to be strategic in placing the DE where the bed bugs will cross it. We place it on the ledge of the metal frame beneath the bed, and along the edge of the wall behind the bed. Bed bugs may scale walls in order to descend upon beds and other places to find food.

    • Do you find this question helpful?  Yes  No
  • From Ellie at 5/30/12 11:20 AM
    • how do i go about killing spiders with de. my house is over run by common house spiders.
    • Diatomaceous Earth is effective on common house spiders. The best way to use diatomaceous earth is to spread it in problem areas where the spiders are commonly seen, as well as near any areas from which they may be entering. This may include doorsills or window frames. You can also apply the diatomaceous earth to your carpets, but you will have to reapply it after vacuuming.
    • Do you find this question helpful?  Yes  No

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