Homemade Bug Spray Recipes: 4 Simple DIY Pest Sprays To Make Today

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You are sharing the house with some unwanted visitors. You need to find a way to get rid of them. No, they aren’t your in-laws. They are much worse and much more numerous than them. They are BUGS! Cockroaches, ants, centipedes. You name it, you’ve got it. So, why not make some homemade bug spray to repel those pests? In this article, we will talk about the individual bugs that need to be repelled, and then get into all-inclusive repellents.


You probably already know, but centipedes are the seemingly thousand-legged creatures that can crawl very quickly through your house. They can be distinguished from millipedes as they only have one pair of legs per body segment, as opposed to two. They also have more flattened bodies than millipedes. As Texas A&M University writes, the largest centipedes may grow to be about 6 inches long. However, most species are less than about 1.5 inches long.

what do centipedes look like

Why Repel Them?

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Centipedes are predatory insects, and actually eat a lot of other pests. Some might even venture to say that they are beneficial. So why repel them? First of all, who wants to know that they have centipedes lurking in their house? They are creepy to look at and make many people shiver just thinking about them. But more than that, they can bite if provoked. Most small centipedes won’t break skin, but some larger species can give bites that irritate you as much as a bee sting. Some people are allergic to these bites, which can cause an even bigger problem. So, how do we fix this infestation?

Repelling Tips

There are some simple things that you can do to get rid of these bugs. First, since centipedes love cool, moist places, place a dehumidifier anywhere that would attract them. Also, seal up your garbage! Although centipedes won’t eat it, they will eat the insects that flock to it. But if these measures aren’t enough, make a homemade bug spray specifically for centipedes!

Homemade Centipede Spray

You will need:

  • Tea Tree Essential Oil
  • Distilled Water
  • A Spray Bottle


  1. Place 25 drops of the oil into a spray bottle with 6 ounces of water. Shake the mixture.
  2. Spray the mixture on doors, windows, and any other cracks or crevices that might invite in centipedes.
  3. Repeat the process weekly.


Cockroaches are common pests. They have flat oval-shaped bodies with long antennae and long legs. Clemson University states that they are generally between ½ and 2 inches long, and range very much in color. They could be anywhere from tan to black. Cockroaches move very quickly, making them a tough target.

Cockroach up close

Why Repel Them?

There are a variety of reasons for repelling roaches. First, as before, they are just gross. More than that, they hang out near food sources. This is generally the kitchen. And, in the kitchen, they contaminate utensils and other places with their droppings and saliva. Finally, they do nothing beneficial for you while living in your home.

Repelling Tips

There are a variety of ways to get rid of these pests. One way is to spray them with a mixture of dish soap and water. Hot sauce can also kill roaches, but be careful! If you have small children or pets, they may want to put it in their mouths. If you simply want to repel the roaches, spreading catnip or bay leaves throughout the house will do just that. A simple recipe for some fatal food for them is listed below, if that seems like a better solution for you.

Homemade Cockroach Killer


  • 1 part powdered boric acid
  • 1 part white flour
  • 1 part granulated sugar


  1. Mix these three items together.
  2. Place some of the mixture near any cockroach dwelling. The sugar will entice the roach to eat the mixture, and the boric acid will kill the roach when it eats it.
  3. Continue using this mixture until the roaches are totally eradicated. This will most likely take a matter of weeks, but they will eventually all die off.
  4. IMPORTANT: Be very careful if you have small children or pets. Boric acid isn’t highly toxic, but still should not be ingested. Make sure that you place this mixture where only the roaches can get to it.


Other insects that can be real nuisances are ants. They are fairly easy for most people to identify, as they are found on every continent other than Antarctica. Ants’ bodies have three sections, and ants have six legs. They are usually very small and are earth-toned colors. They usually live in large colonies, so if you see one, look out for many more!

ants in house

Why Repel Them?

Most species of ants are harmless, and won’t hurt you. However, as the University of Arizona states, some ants have very powerful stings, and some people can be very sensitive to these stings. Other than this, if ants are in your house, they often stay near your food sources and get into everything. They can be very annoying creatures, in addition to some of their stings.

Repelling Tips

There are many ant solutions that will work to repel them. These should be placed along windows and doorposts, and any places that ants gather in your house. One of the most common things to use is cinnamon. According to many people, it works like a charm! Other than this, vinegar, peppermint, and lemon juice work well.

Related: Natural Ant Repellents Guide

If you came to this website because you really wanted a homemade bug spray to spritz those ants with, a spray can easily be made by mixing a bit of dish soap in with water. This will kill the ants relatively quickly. As a general tip, make sure there are no cracks or crevices in your house for ants to move through, and make sure food products are cleaned up after use. If you use maple syrup, make sure that you wipe off the bottle before you put it back in the pantry!

Not only will this not attract ants, but it will give you a much more pleasant experience next time you go to open the lid of that syrup. This tip goes for many things, as well. For example, rinse out your soda cans before you throw them out, and do other things to keep the place free of food for ants. Keep a clean home to clean out those pests!


These creatures are more of a problem when you are outside. Therefore, you need a spray that you can spray onto yourself to keep them away! Here is a spray that can be made using many different ingredients, depending on what is available. Just make sure that you have some essential oils and a carrier liquid.

Mosquito Spray

REALLY Homemade Mosquito Spray


  • Essential Oils (These listed work well)
    • Lavender
    • Citronella
    • Peppermint
    • Basil
    • Thyme
    • Cinnamon Oil
    • Carrier Liquid (You only need one)
      • Apple Cider
      • Vodka
      • Rubbing Alcohol
      • Vegetable Oil
      • Lemon Juice
      • Herbs (These are optional, but will help your spray work better)
        • Mint
        • Catnip
        • Basil
        • Thyme
        • Lavender


  • Mix in about 1 part essential oils for every 15 parts carrying liquid that you have.
  • Pour this into a pot and heat it on the stove.
  • Chop the herbs that you chose and let them sit in the warm mixture for a while. The longer, the better!
  • Strain the mixture and put it into a bottle to spray.
  • Spray away!


All- Purpose Homemade Bug Spray

With literally millions of insect species roaming the earth, it’s possible that your pest of choice is not listed in this article. “But that’s not fair!” You say. Well, there are homemade bug sprays that will work for most insects. Below are a few of these solutions.

Homemade Bug Spray for Houseplants


  • Herbs such as…
    • Basil
    • Mint
    • Lavender
    • Sage
    • About 1/8 teaspoon gentle dish soap
    • ½ gallon of water


  • Heat up the water in a large pot.
  • Chop up the herbs and place them into the water.
  • Let them steep for as long as possible in the warm water. The water can be placed in a covered bucket in sunlight instead of on the stove as well, so that the herbs can steep for days.
  • Strain the mixture.
  • Put the solution into a spray bottle and place the dish soap into the bottle. Shake it up.
  • Test the spray with a small part of your plant first, to make sure it does nothing to harm the plant. Then, spray away!

Easy Indoor Homemade Bug Repellent


  • Peppermint Essential Oil
  • Cedarwood (or Cedar) Essential Oil
  • Distilled Water
  • A Spray Bottle


  • Add 5 to 10 drops of essential oils per ounce of water that you put into your spray bottle.
  • Screw on the cap and thoroughly shake up the bottle.
  • Now you’re ready to spray! So spray anywhere that may be entrances for bugs into your house.

There are many different homemade bug sprays that can be made, and many other ways to repel and kill bugs that get into your house. 

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