fleasApplying Diatomaceous Earth for Fleas

Does diatomaceous earth help against a flea infestation?  If you’re looking for an effective, simple, and non-toxic option, Diatomaceous Earth is very effective at ridding fleas indoors and outdoors.  But don’t take our word for it, the National Pesticide Information Center reports that:

“Diatomaceous earth products are registered for use against bed bugs, cockroaches, crickets, fleas, ticks, spiders, and many other pests.”

Let us look a bit closer into exactly how diatomaceous earth kills fleas and how to apply this stuff.

How Diatomaceous Earth Kills Fleas

Many wonder how such a fine powder can kill insects effectively and not use chemicals.  Fleas have a waxy coating that surrounds their exoskeleton and acts as pores to let moisture in and out.  The microscopic particles of diatomaceous earth break through the waxy coating.  This inhibits the insects ability to control its moisture level.  As the insect moves, more and more of its waxy coating is removed. Because diatomaceous earth absorbs moisture so well, it is dehydrated and dies.  No chemicals are involved.  The key to its effectiveness is the correct application.

Indoor Diatomaceous Earth Flea Treatment

1. Apply Crawling Insect Control diatomaceous earth to your pet’s entire fur coat making sure to rub it down to the skin. Do this every day for two weeks. Be sure not to miss the legs, belly, or hind quarters.

2. During this two-week period, take the product and apply a light and visible coat to pet bedding, flooring around the bedding, rugs, and upholstery. Leave for the first week, clean, and then reapply for the next week in the same fashion.

3. Clean thoroughly indoors and see where you stand. In most cases this eliminates the population and cuts off the gestational period. In some cases fleas can get out of hand. If you still notice fleas, reapply diatomaceous earth for another week or two.

Outdoor Diatomaceous Earth Flea Control

1. Apply Crawling Insect Control diatomaceous earth as described above to your pet’s entire fur coat every few days as a good preventative measure.

2. Apply Crawling Insect Control diatomaceous earth around the perimeter of kennels and cages and the perimeter of your house. Make sure it is lightly visible. Be sure to reapply if it rains.

3. Repeat steps 1 & 2 all summer to ensure the proper protection

4. (Optional) Florida has unique sand fleas in huge numbers so some residents apply diatomaceous earth to their entire lawn a few times every season. Mix 1/2 Lawn Sand & 1/2 Crawling Insect Control diatomaceous earth in a fertilizer spreader to ensure the product falls correctly and evenly. Product is very fine so be careful not to open the spreader too much. Make sure the application is light and visible and re-apply after every rain.


Diatomaceous earth has been proven to be a very effective treatment for flea control. Because food grade diatomaceous earth is non-toxic and safe for children and pets, you can use it indoors as well as outdoors without any worries.

Content Created by Hemmer Media Consulting