10 Best Diatomaceous Earths of 2025

Tested and Reviewed: Top 10 Diatomaceous Earths deals with expert ratings from 8.1 to a perfect 10

March 2026 Edition

Editor's Choice

9.7

HARRIS

HARRIS Diatomaceous Earth Food Grade, 4lb with Powder Duster Included in The Bag

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Editor's bottom line:

“This diatomaceous earths is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

Natural Product - Composed of 4lbs of 100% ground freshwater diatomaceous earth with absolutely no additives or fillers.
OMRI Listed - Listed with the Organic Minerals Research Institute, a non-profit organization that reviews products against organic standards.
Powder Duster Included - Powder duster in the bag for easy and efficient application of diatomaceous earth on animal feed
Supports a Great Cause - Harris donates a portion of profits to support the local Etowah Valley Humane Society.
Made in the USA Mined in Nevada and packaged in Georgia

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Picked by 397 people today

9.5

Diatomaceous Earth

DiatomaceousEarth Food Grade Diatomaceous Earth – 10lb | 100% Organic, All-Natural Powder | Safe for Humans & Pets | OMRI Listed for Organic Use

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Main Highlights

OMRI Listed for Organic Use Certified by the Organic Materials Review Institute, ensuring compliance with strict organic standards for safe gardening and farming.
100% Pure & Natural Contains 10 lbs of premium freshwater diatomaceous earth with no additives, fillers, or chemicalsjust pure, natural quality.
Multi-Diet Friendly Naturally vegan, keto, and gluten-free, making it suitable for a wide range of lifestyles and uses.
Rich in Amorphous Silica A natural source of freshwater amorphous silica, supporting soil health and plant vitality.
Versatile Applications Ideal for organic gardening, soil conditioning, and moretrusted by professionals and home growers alike.

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9.5

Garden Safe

Garden Safe Brand Crawling Insect Killer Containing Diatomaceous Earth, 4 Pounds, Kills Cockroaches, Ants and Other Listed Crawling Insects by Contact, For Use Indoors & Outdoors

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Main Highlights

FOR ORGANIC GARDENING: Diatomaceous earth-based formula is good for organic gardening
FOR USE OUTDOORS: Apply a thin layer of the fine/powdery granules to plants and on the soil around plants
KILLS BY CONTACT: Kills listed insects by contact. Dust insects directly, if possible
CONTAINS DIATOMACEOUS EARTH: When dusted on insects, the fine/powdery granules coat their exoskeletons and absorb oils and fats, causing them to dry out and die. The granules also cut into insects shells, causing them to dehydrate further
CONTROLS CRAWLING INSECTS: Kills German cockroaches, ants,* beetles,** fleas, mealybugs and other crawling insects as listed
Garden safe diatomaceous earth
Long-lasting control
Kills cockroaches, ants, silverfish, beetles and other crawling insects
Kills within 24 hours of contact
This product comes in 4-pound

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9.2

HARRIS

HARRIS Diatomaceous Earth Food Grade, Half Pound with Easy Application Puffer Tip

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Main Highlights

100% Chemical-Free: Made from 8oz of food-grade freshwater diatomaceous earth with no additives or fillers. Safe for use around children, pets and farm animals when used as directed.
OMRI Listed for Organic Use: Certified by the Organic Materials Review Institute, making it suitable for use in organic farming and gardening practices.
Sourced and Packaged in the USA: Responsibly mined in Nevada and packaged in Georgia, ensuring consistent quality and supporting local operations.
Puffer Tip Easy Application: Allows precise application in cracks, crevices, and tight spaces.
Trusted Brand Since 1922: Trusted Brand Since 1922: Jobs done right, in and around the home for over a century.

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9.0

HARRIS

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

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Main Highlights

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.

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8.8

HARRIS

Harris Diatomaceous Earth Food Grade, 2lb OMRI Listed - Approved for Organic Use

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Main Highlights

100% CHEMICAL-FREE: Made from 2lbs of food-grade freshwater diatomaceous earth with no additives or fillers. Safe for use around children and pets when used as directed.
OMRI LISTED FOR ORGANIC USE: Certified by the Organic Materials Review Institute, making it suitable for use in organic farming and gardening practices.
SOURCED AND PACKAGED IN THE USA: Responsibly mined in Nevada and packaged in Georgia, ensuring consistent quality and supporting local operations.
VERSITILE APPLICATIONS: Discover the multiple use occasions for DE!
TRUSTED BRAND SINCE 1922: Trusted Brand Since 1922: Jobs done right, in and around the home for over a century. Harris is America's oldest EPA registered Pest Brand!

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8.6

HARRIS

Harris 8 oz Diatomaceous Earth Crawling Insect Killer — 100% Natural Dust for Ants, Roaches, Bed Bugs, Fleas — Indoor & Outdoor Use

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Main Highlights

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 powder is non-toxic, pet-friendly (when used as directed), and safe for use around kids and animals. 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.
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.
EPA REGISTERED - Registered with the Environmental Protection Agency (No. 3-18)
BUILT-IN PUFFER TIP FOR PRECISE CONTROL The included powder duster features a narrow, easy-to-use puffer tip that allows for targeted application in tight spaces and cracks. Apply just the right amount of diatomaceous earth exactly where insects hideno waste, no mess.
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.

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8.3

HARRIS

HARRIS Diatomaceous Earth Food Grade, 10lb with Powder Duster Included in The Bag

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Main Highlights

100% Chemical-Free: Made from 10lbs of food-grade freshwater diatomaceous earth with no additives or fillers. Safe for use around children and pets when used as directed.
OMRI Listed for Organic Use: Listed with the Organic Materials Review Institute, ensuring compliance with organic standards for various applications.
Powder Duster Included for Easy Application: Comes with a powder duster conveniently packed inside the bag, allowing precise application in cracks, crevices, and tight spaces.
Sourced and Packaged in the USA: Responsibly mined in Nevada and packaged in Georgia, ensuring consistent quality and supporting local operations.
Multi-Purpose Use Indoors and Outdoors
Trusted Brand Since 1922: Trusted Brand Since 1922: Jobs done right, in and around the home for over a century. Harris is America's oldest EPA registered Pest Brand!

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8.1

Dicalite

Dicalite Minerals DE25BOX Diatomaceous Earth Pool Filter D.E. 25 lbs

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Main Highlights

All-natural filtering media for de swimming pool filters
Designed for use in above ground and in ground de filter systems
High-grade de filter powder can filter down to 3-5 microns
Diatomaceous earth consists of fossilized remains of diatoms, a type of hard-shelled algae
Leaves water sparkling and crystal clear without clumping

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8.1

HARRIS

Harris Diatomaceous Earth Food Grade, 5lb with Powder Duster Included in The Bag, OMRI Listed Approved for Organic Use

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Main Highlights

100% Chemical-Free: Made from 5lbs of food-grade freshwater diatomaceous earth with no additives or fillers. Safe for use around children and pets when used as directed.
OMRI Listed for Organic Use: Certified by the Organic Materials Review Institute, making it suitable for use in organic farming and gardening practices.
Powder Duster Included - Powder duster in the bag for easy and efficient application of diatomaceous earth on animal feed
Powder Duster Included for Easy Application: Comes with a powder duster conveniently packed inside the bag, allowing precise application in cracks, crevices, and tight spaces.
Sourced and Packaged in the USA: Responsibly mined in Nevada and packaged in Georgia, ensuring consistent quality and supporting local operations.
Trusted Brand Since 1922: Jobs done right, in and around the home for over a century.

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Our Best Overall Choice

Best Choice

9.7

HARRIS

HARRIS Diatomaceous Earth Food Grade, 4lb with Powder Duster Included in The Bag

Free Shipping

Editor's bottom line:

“This is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

Natural Product - Composed of 4lbs of 100% ground freshwater diatomaceous earth with absolutely no additives or fillers.
OMRI Listed - Listed with the Organic Minerals Research Institute, a non-profit organization that reviews products against organic standards.
Powder Duster Included - Powder duster in the bag for easy and efficient application of diatomaceous earth on animal feed
Supports a Great Cause - Harris donates a portion of profits to support the local Etowah Valley Humane Society.
Made in the USA Mined in Nevada and packaged in Georgia

Show Price

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10 Best Diatomaceous Earths of 2025

Tested and Reviewed: Top 10 Diatomaceous Earths deals with expert ratings from 8.1 to a perfect 10

HARRIS

HARRIS Diatomaceous Earth Food Grade, 4lb with Powder Duster Included in The Bag

Editor's bottom line:

Main Highlights

Diatomaceous Earth

DiatomaceousEarth Food Grade Diatomaceous Earth – 10lb | 100% Organic, All-Natural Powder | Safe for Humans & Pets | OMRI Listed for Organic Use

Main Highlights

Garden Safe

Garden Safe Brand Crawling Insect Killer Containing Diatomaceous Earth, 4 Pounds, Kills Cockroaches, Ants and Other Listed Crawling Insects by Contact, For Use Indoors & Outdoors

Main Highlights

HARRIS

HARRIS Diatomaceous Earth Food Grade, Half Pound with Easy Application Puffer Tip

Main Highlights

HARRIS

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

Main Highlights

HARRIS

Harris Diatomaceous Earth Food Grade, 2lb OMRI Listed - Approved for Organic Use

Main Highlights

HARRIS

Harris 8 oz Diatomaceous Earth Crawling Insect Killer — 100% Natural Dust for Ants, Roaches, Bed Bugs, Fleas — Indoor & Outdoor Use

Main Highlights

HARRIS

HARRIS Diatomaceous Earth Food Grade, 10lb with Powder Duster Included in The Bag

Main Highlights

Dicalite

Dicalite Minerals DE25BOX Diatomaceous Earth Pool Filter D.E. 25 lbs

Main Highlights

HARRIS

Harris Diatomaceous Earth Food Grade, 5lb with Powder Duster Included in The Bag, OMRI Listed Approved for Organic Use

Main Highlights

Our Best Overall Choice

HARRIS

HARRIS Diatomaceous Earth Food Grade, 4lb with Powder Duster Included in The Bag

Editor's bottom line:

Main Highlights

Deals are Live

Harris 8 oz Diatomaceous Earth Crawling Insect Killer — 100% Natural Dust for Ants, Roaches, Bed Bugs, Fleas — Indoor & Outdoor Use