Natural Roach Repellent and Killer

Natural Roach Repellent

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Cockroaches can be a disturbance in any home. Because they tend to show up in the same area that is used by children and pets, it's worth considering a natural roach repellent. Diatomaceous earth is an organic roach control that is pet friendly. Not only will it rid your home of cockroaches, but it continues to work long after chemical solutions have worn away. Another consideration is that roaches also won't build up a resistance to diatomaceous earth like they can to chemical pesticides.

Read the following steps on how to apply diatomaceous earth to your home, and the steps to maximize its effects.

How-To Instructions


Grab Everything You Need

Make sure you have all the right equipment for the job. You can select one of our diatomaceous earth kits that include everything you'll need or just buy some DE and use your own applicators. There is no wrong way to apply diatomaceous earth; it just needs to come into contact with the insect to work.


Clean Your Home

Give your home a thorough cleaning. Maintaining excellent sanitation practices is usually the best defense against cockroaches. As you clean your home, look for cockroaches and mark the places they congregate with a post-it note. Use a flashlight for dark places where roaches might be hiding.



This also works to pick up roaches and the food that attracts them. Be detail-oriented and be sure to move furniture and appliances around. To keep them from returning, it's effective to clean places where food may have dropped.


Fix Leaks

Particularly dampness and moisture will draw in roaches. Dry up any damp areas to prepare for the DE application. To prevent more cockroaches, seal up any cracks that could be under sinks, in the bathroom, near baseboards, or around poorly sealed doors. Any kind of entrance for a cockroach needs to be sealed up. You can do this with caulk or sealant. This is a particularly important step because these damp areas could prevent the DE from being as effective as you like.


Apply DE

Apply anywhere that cockroaches have been. Dust lightly, since cockroaches won't step on the DE if the dusting is too heavy. Apply the DE anywhere cockroaches can hide, enter your home, and where food is commonly dropped. Don't apply the DE to any area that is consistently damp or wet.


Repeat as Needed

Reapply diatomaceous earth if your cockroach problem rears its ugly head again.

Helpful Tips and Warnings

  • If you have breathing problems like asthma you may want to use a dust mask when spreading large amounts of diatomaceous earth dry.
  • Go to our Natural Pesticides page to view other articles on how to deal with other insect problems.
  • If a roach infestation is too large for a do-it-yourself project, please call a professional.


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DISCLAIMER: We appreciate all tips and comments that are submitted to our site. Please note that we are required to monitor all comments to ensure that the advice given is in compliance with the EPA regulations governing insect kill claims. All suggestions for using DE for the purpose of a natural pesticide should be referencing our EPA registered Crawling Insect Control DE. Any comments that mix advice for both food grade uses and pesticide uses will need to be removed to satisfy the requirements of the EPA.