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Diatomaceous Earth for Insect Control

Diatomaceous Earth for Insect Control

In the realm of pest control, there is a growing demand for safe and eco-friendly alternatives to traditional chemical pesticides. One remarkable solution, to a pest problem, that has gained popularity in recent years is diatomaceous earth (DE). This fine, white powder, derived from the fossilized remains of something called diatoms, offers a natural and non-toxic method of combating a wide range of common household and garden pests. In this comprehensive article, we will delve into the fascinating world of diatomaceous earth, exploring how it works for controlling insects like carpet beetles, how to apply the product, and why it has become a favored choice for those seeking a more environmentally conscious approach to pest management.  We give specific instructions on how to battle specific insects like fleas, bed bugs, and ticks at our page, how to use diatomaceous earth.  Be sure to click the underlined link to be directed there.  Below you will find the table of contents to navigate to the section you need more information on.

Understanding Diatomaceous Earth

Diatomaceous earth is a unique substance, primarily composed of silicon dioxide, which is abundant in the microscopic remains of diatoms. Diatoms are aquatic organisms with silica-rich skeletal structures that accumulated on the ocean floor over millions of years. When processed and ground into a fine powder, diatomaceous earth becomes a powerful tool for pest control.  For a more comprehensive look on what is diatomaceous earth, be sure to click the underlined link to be directed there.  There are a few types of diatomaceous earth out in the market right now.  We specifically sell food grade and crawling insect control.

How Diatomaceous Earth Works For Insect Control

The efficacy of diatomaceous earth as an insect control agent lies in its physical action on pests. When insects come into contact with DE, whether indoor and outdoor, several crucial mechanisms come into play:

  1. Desiccation: Diatomaceous earth is incredibly absorbent, with microscopic, abrasive particles that damage the outer waxy layer of an insect's exoskeleton. This disruption leads to the loss of essential moisture, ultimately resulting in dehydration and the insect's demise.

  2. Mechanical Action: DE is often referred to as a "mechanical" or "physical" pesticide because it doesn't rely on chemical toxins to kill insects. This makes it a safer choice for humans, pets, and the environment.

  3. Broad Spectrum: Diatomaceous earth's desiccant action is effective against a wide range of pests, including but not limited to ants, bedbugs, fleas, cockroaches, spiders, and beetles. It is also effective against garden pests like slugs and snails.

  4. Non-Toxic: Unlike chemical pesticides, diatomaceous earth is non-toxic and does not pose health risks to humans or pets. It can be safely applied in various areas, including kitchens, gardens, and pet spaces.

Applications of Diatomaceous Earth for Insect Control

Diatomaceous Earth Being Applied in a Garden

Diatomaceous earth (DE) is a natural and effective solution for insect control with a wide range of applications. Its unique properties make it a valuable tool for managing common household and garden pests. 

Indoor Pest Control

Diatomaceous earth is a valuable asset for maintaining a pest-free home. It can be used in various indoor settings to combat common household insects, like carpet beetles and fleas.  We give some examples below but be sure to visit our how to use diatomaceous earth pages to get specific instructions per insect that you are wanting battle.

  • Bedbugs: Dust diatomaceous earth in and around your mattress and bed frame to help eradicate these notorious pests.  Please visit our page on how to use diatomaceous earth for bed bugs.

  • Cockroaches: Apply a thin layer in areas where cockroaches frequent, such as under sinks and behind appliances.  Please visit our page on how to use diatomaceous earth for roaches.

  • Fleas: For pet owners, diatomaceous earth can be used in pet bedding and carpets to control fleas.  Please visit our page on how to use diatomaceous earth for fleas.

Garden Pest Control

In the garden, diatomaceous earth proves to be a natural and safe way to protect your plants from invasive insects:

  • Slugs and Snails: Create a barrier of diatomaceous earth around plants to deter these garden-damaging pests.  We recommend you form a sort of mote around either the entire garden or around each plant.  Some even form traps using a saucer full of beer and then applying diatomaceous earth as a mote around the saucer.

  • Ants: Use DE to block ant trails and entry points into your garden or home.  Be sure to check out our dedicated page, diatomaceous earth for ants, to learn exactly how to apply indoors and outside.

Food Storage Protection With Diatomaceous Earth

Home Food Storage

Diatomaceous earth can also be used to safeguard stored food items against pantry pests like weevils, beetles, ants, and cockroaches.  We recommend application in a light, visible, and even fashion around entryways, around where the wall meets the floor, a light and visible dusting on the shelves where food is stored, and a light dusting inside food storage containers and any cracks and crevices you can find in that room.  This type of application acts as an effective preventive measure and can also help reduce moisture within the room.

Livestock and Pet Care With Diatomaceous Earth

For larger livestock and pets, diatomaceous earth products can be added to their feed as a natural means of controlling internal parasites by having them ingest this powder. Food-grade diatomaceous earth is suitable for this purpose. It's essential to consult with a veterinarian to determine the appropriate dosage for your larger animals.  With pets we do recommend its fed to them in their food daily.  We give a great breakdown of how to use DE appropriately at our page, diatomaceous earth for pets & livestock.  Please click the underlined link to be directed there.

Tips For Using Diatomaceous Earth Safely and Effectively

  1. Choose the Right Type: Ensure you select food grade or crawling insect control diatomaceous earth for safe use around pets and humans. Avoid filter grade DE, which may contain impurities and is not suitable for these applications.

  2. Wear a Dust Mask: When applying DE, especially in dry, dusty conditions, consider wearing a mask to prevent inhalation of the fine particles.

  3. Apply Thin Layers: A little diatomaceous earth goes a long way. Apply a thin, even layer in areas where pests are active.

  4. Reapply After Rain: Diatomaceous earth loses its effectiveness when wet, so reapply it in outdoor areas after rain or heavy irrigation.

  5. Monitor and Assess: Regularly check the treated areas and assess the pest situation. Reapply DE as needed.


Diatomaceous earth is generally an effective insect control solution for a myriad of reasons. Its non-toxic nature, broad-spectrum efficacy, and environmentally friendly attributes make it an appealing choice for those who seek to manage pests without resorting to harmful chemicals. Whether safeguarding your home, protecting your garden, or caring for your pets, diatomaceous earth offers a safe and natural means to keep unwanted insects at bay, making it a valuable tool in the realm of pest control. As the demand for eco-friendly pest control solutions continues to rise, diatomaceous earth stands as a testament to the effectiveness and sustainability of natural alternatives in our ongoing battle against unwanted pests.

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