HARRIS

Harris Diatomaceous Earth Crawling Insect Killer 4lb with Powder Duster Included Inside The Bag

$27.50

1828+ bought in the past month

About this item

  • POWERFUL CRAWLING INSECT KILLER : Effectively kills a wide range of crawling insects including ants, bed bugs, cockroaches, fleas, earwigs, silverfish, and spiders. A natural solution for indoor and outdoor pest control without harsh chemicals.
  • 100% DIATOMACEOUS EARTH WITH NO ADDITIVES : Made from pure freshwater diatomaceous earth, this product is safe for use around kids and animals, when used as directed. A trusted choice for eco-conscious households.
  • KILLS INSECTS MECHANICALLY, NOT CHEMICALLY : Works by dehydrating insects on contact through physical abrasion. Insects walk through the powder and the fine particles damage their exoskeleton, leading to rapid dehydration and death.
  • EASY APPLICATION WITH INCLUDED POWDER DUSTER : Comes with a convenient powder duster inside the bag for precise, mess-free application in hard-to-reach areas like cracks, crevices, baseboards, behind appliances, and under sinks.
  • LONG-LASTING INDOOR & OUTDOOR PROTECTION : Remains effective as long as the powder stays dry. Use in basements, attics, gardens, garages, and entry points to create a barrier against future infestations.
  • TRUSTED BRAND SINCE 1928: Harris has been providing effective pest control and insect management solutions for nearly a century, trusted by professionals and homeowners alike.
$27.50

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Product details
Item FormPowder
Item Weight4 Pounds
BrandHARRIS
Target SpeciesAnts, Bed Bugs, Cockroach, Fleas, Bed Bugs
Technical specifications
package_dimensions18 x 11.8 x 3.2 inches; 4 Pounds
item_model_numberDECRAWL-4P
date_first_availableDecember 10, 2019
manufacturerHarris
best_sellers_rank#6,179 in Health & Household ( See Top 100 in Health & Household ) #15 in Indoor Insect & Pest Control

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Customer reviews

4.418,224 ratings
  1. 575%
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  3. 313%
  4. 20%
  5. 10%

Customers say

Customers find the diatomaceous earth effective against various insects, including ants and bedbugs, and appreciate its safety as it's non-toxic to humans and pets. Customers report that the powder gets everywhere when disturbed, making it messy to work with.

★★★★★

Works Great and Super Easy to Use

Jennifer HOctober 28, 2025✓ Verified purchase

I bought this Harris Diatomaceous Earth to deal with some ants and other crawling bugs around the house, and it’s been working really well. The powder is super fine and not sticky at all — it spreads easily and doesn’t leave any kind of residue or mess. The little powder duster that comes in the bag is really handy. It makes it easy to apply the product in corners, along baseboards, and even outside around the foundation. The bag itself seals tightly, so there’s no worry about it spilling or getting moisture inside. The product quality feels high, and you don’t need to use a lot for it to be effective. For the size of the bag, it’s a great deal — plenty of powder for multiple applications. Pros: easy to use, clean to apply, good seal on the bag, great value Cons: none — it works just as described Overall, this is a great natural way to control insects without harsh chemicals. I’d definitely buy it again. Read more

★★★★★

Gets The Job Done!

SusanFebruary 8, 2026✓ Verified purchase

I’ve been using Diatomaceous Earth every spring to deal with clover mites and it works great. It’s one of the most effective solutions I’ve found for keeping them under control without having to rely on harsh chemicals. Once it’s applied, it does exactly what it’s supposed to do and keeps the problem from getting out of hand. It can be a little messy during application, but that’s a small trade off for how well it works. I appreciate that it’s long-lasting and reliable year after year. If you’re dealing with clover mites or other crawling insects, this is a product that really gets the job done. Read more

★★★★★

This stuff works. Use as directed and wear a mask if using applicator.

Zed the REDSeptember 30, 2025✓ Verified purchase

I live in public housing and there is a huge bug problem... roaches & bedbugs. I had both for a while until someone suggested Diatomaceous earth. I put some of this all over the place at first, right on the kitchen counters where roaches crawl, all around the bed, even on the bedframe itself on the flat parts, I put it everywhere I saw a bug ; Didn't take long for the entire population of both kinds of bugs to die off. I rarely see a roach or a bedbug now, despite the neighbor's places crawling with them. I can live like a normal person while others , who refuse to even consider doing the work it takes, live in squalor. This stuff made my life so much better I keep a bag of it around to help others if they will take it. If you don't get it wet it will last a very long time. Bugs crawl through it and die quite soon after. It's safe as long as you wear a mask while applying it with the applicator. It's so good that the exterminator does not come in my apartment, he says I do a better job than his spray can do. He says I have the best apartment in the building as far as lack of bugs goes. It has no smell. It doesn't blow around unless you point a blast of air directly at it. You can make little berms of it wherever bugs crawl ; they crawl through it and then they die soon after, carrying it back to the nest where it will kill others too. GREAT PRODUCT all natural just don't breathe it in directly and even if you do it won't hurt you in small amounts just agitate your throat a little bit. Read more

★★★★☆

It's safe

Susanne LaforestFebruary 6, 2026✓ Verified purchase

Works well with adult roaches. Takes a little longer with baby ones. Maybe because the weight difference. I believe one they crawl on the powder it cuts them and the die in their nest area. So far I believe it's working. I feel better knowing this is safe because of my fur babies. The powder is made from ground shells. Read more

★★★★★

Great Stuff

Summer SanchezMarch 19, 2026✓ Verified purchase

Kills those bedbugs everytime!...Hopefully there isn't an "everytime", but highly recommended!!! Read more

★★★☆☆

Idk if it works yet. It worked for my friend for roaches. But idk I’m super acared

DootdootdooMay 18, 2025✓ Verified purchase

3 stars bc idk!!! I need help. I poured this all over my bathroom bc I was getting numerous centipedes (barffff) running passed my feet while I was peeing. So inpoured this in front, behind, and all over the border of my bathroom. 1 week later I noticed a pile of idk WTH!!! It looks like little baby pebbles or ashes in a mound behind and in front of my toilet! So WTH is this now? And why isn’t this working? Like this is brand new! Someone please tell me what I’m dealing with. I’m female hate creepy crawlers more than u can imagine and no man around. Please help! Do I need an exterminator and for what????? That white powder is this item. I put it there last week and there was no mound! I’m freaking out! Front of toilet and back? Thought it was dirt, then I saw the mound behind the toilet much bigger. I’m freaking!!! Please tell me this isn’t a centipede nest!?!? Read more

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★★★★★

Needs to stay dry

ViginiaOctober 29, 2025✓ Verified purchase

Works great, ants at front door, and one of my bedroom windows. My son n law sprinkled powder outside around my window and front door. Seems to me Ants don’t want to get in near it. Not sure, but they’re staying away from door and stopped coming in my window. I like that it’s not toxic, I have budgies free 24/7 I will not use it inside my room because it’s a powder. will not work if it gets wet, not an issue for me. I’ll just put more. Read more

★★★★★

Does exactly what its for.

RayMarch 11, 2026✓ Verified purchase

It did exactly what was needed. They need to change the bad closure because I have had 3 different people besides myself try to ziplock it back together to save what was not used and its just not going to happen. Other than that I am happy with the product. Read more

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