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How to Make Homemade Organic Mosquito Yard Spray

Marlene enjoys being outside. But, outdoor pests can ruin the most enjoyable moments. Marlene shares common tips to help get rid of pests.


Gardening is my favorite pastime because of how much I enjoy spending time in the yard. However, nothing ruins that enjoyment more than being bitten by a mosquito. So I determined that they needed to go, and I wanted to repel them naturally.

A gardening friend, understanding my desire to use safe and organic products, recently shared this wonderful mosquito repellent with me. The following slightly minty smelling and organic mixture can be sprayed throughout the yard to repel the flying pests. The spray is very easy to make (dissolving the salt will probably take the longest). A little separation is completely normal. Just give the bottle a shake before spraying. You can also dilute essential oils that mosquitoes don't like in the mixture.

In my experience, one spraying lasts for about two and a half months before needing to be sprayed again. My friend can’t remember where she found this solution, but she's been using successfully for years. I am happy she shared it with me. And I am happy to share this organic mosquito repellent with you.

This organic solution for repelling mosquitoes has worked really well for me—and I hope it works equally as well for you.

I tried it! It works!

These are all of the supplies and ingredients that you'll need to make the mosquito spray at home!

These are all of the supplies and ingredients that you'll need to make the mosquito spray at home!

How to Make DIY Natural Mosquito Repellent


  • 2 (24-ounce) spray bottles
  • Spoon
  • Large bowl
  • Funnel


  • 16-ounce bottle of mint-flavored mouthwash (I used PerioBrite)
  • 3 cups Epsom salt (I used lavender and eucalyptus scented)
  • 3 stale 12 oz. beers (I used Budweiser)


  1. Place all the ingredients together in the large bowl and then mix with the spoon until the Epsom salt is dissolved.
  2. Use the funnel to pour the solution into the spray bottles.
  3. Spray all around the yard, especially anywhere you plan to be outside.


This recipe will produce approximately 8 Cups (64 ounces) of solution. If you let the Epsom salt dissolve completely it will displace some of the volume, thus, producing a mere 64 ounces versus 72 ounces of volume. I recommend letting the Epsom salt dissolve completely so that it sprays out more evenly.

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I found that it is easier to handle the smaller 24-ounce bottle of solution instead of handling the larger (heavier) bottle.

This solution will not harm your yard. In fact, some gardeners say the Epsom salt helps the grass grow greener. But I would not spray it directly on flowering plants. Instinct tells me it might be too harsh for the flowers. Mosquitoes will stay away for about two and a half months. That’s almost a whole summer!

What Are the Best Ingredients/Supplies to Buy?

  • Spray Bottles: You can find spray bottles at stores like Walmart; however, the easiest place to find spray bottles in just about any size is Amazon. They offer inexpensive and fast delivery. If you want to cover a large area quickly, you might consider one of those pressure sprayers. You can pick up a decent one for as little as $15 and save your hands a lot of work in the process.
  • Mouthwash: Look for a mouthwash that boasts its organic qualities. Make sure it is mint flavored because mosquitoes do not like the scent of mint. Also, be sure the mouthwash is alcohol-free because mosquitoes are attracted to alcohol. I shopped online and was able to find an organic mouthwash through a health-related store.
  • Epsom Salt: Any Epsom salt will work fine. I just happened to have Epsom salt with lavender and eucalyptus. So I just used that.
  • Beer: Do not spend a lot of money on beer because any beer will work fine. I have seen cheap off-brand beer at the Dollar General for as low as 75 cents per can.


Non-alcoholic beer is still beer. By law, in the United States, brewers are allowed to label beer as non-alcoholic if it contains less than or up to 0.5% of alcohol by volume (ABV). Remember, mosquitoes are attracted to alcohol. So, because of the fact that non-alcoholic beer has alcohol, it is always best to allow beer to sit on the shelf and become stale (allowing the alcohol to evaporate) before using in this solution.

Other Natural Ingredients That Work as Mosquito Repellants

  • Lemon eucalyptus oil
  • Lavender
  • Rosemary
  • Cinnamon oil
  • Marigold
  • Thyme oil
  • Cedar
  • Catnip oil
  • Anise
  • Soybean oil
  • Fennel
  • Citronella
  • Cloves
  • Tea tree oil
  • Geraniol
  • Mint
  • Tansy
  • Neem oil
  • Celery extract
I didn't spray it directly on flowering plants.

I didn't spray it directly on flowering plants.

Are Bees Harmed by Beer, Mouthwash, and Epsom Salt?

After reading a number of gardening guides, scientific journals, and visiting various forums related to bee care, I discovered that the organic mosquito repellent presented in this article, for the most part, is harmless to bees.

Please note: Bees can get drunk from consuming too much alcohol. While the repellent recipe here contains beer, it also contains mouthwash. Bees do not like mouthwash. So if you spray this solution in your yard, it is likely the bees will simply stay away from the areas that are sprayed with the solution. Regarding Epsom salt, scientists have discovered that Epsom salt is safe for bees.

The Asian Tiger Mosquito (Aedes albopicts), also known as the Zika virus mosquito.

The Asian Tiger Mosquito (Aedes albopicts), also known as the Zika virus mosquito.

The Dangers of Mosquito Bites

A report issued by the World Health Organization (WHO) provides compelling information about the dangers of mosquito bites, indicating that mosquito bites account for several million deaths every year. Two prominent bite-related health concerns are malaria and the Zika virus.


The World Health Organization states that about 3.2 billion people are at risk of contracting malaria, a life-threatening but treatable disease caused by parasites that are transmitted to people through bites of infected mosquitoes. According to WHO, about 90% of the reported cases are in Africa. Contracting malaria in the US is pretty rare, according to the CDC. There were only 1,724 confirmed cases of it in the US in 2014 (compare that to the millions of cases in some other countries).

The CDC notes that symptoms can appear anywhere from 7-30 days after infection (called the incubation period). Signs can seem somewhat innocuous at first, including fever-like symptoms, tiredness, nausea, and vomiting. These signs usually appear ten to fifteen days after an infected bite. In severe cases, malaria can result in a coma or even death. Antimalarial treatments do exist and can delay the appearance of symptoms, including symptoms in people who took preventative medicines (such as a tourist planning to visit a region known to have many occurrences of the disease).

There are vaccines and treatments available for malaria if you can catch it early enough. One of the tough things about this disease is that extreme symptoms can occur in a matter of hours or days, which potentially isn't enough time to realize the person is infected—let alone get treatment for it. According to WHO's annual world malaria report for 2016, there were approximately 216 million malaria cases of which 445,000 resulted in death.