Garlic Spray Recipe

Garlic spray seems to have a deterring effect on a  wide range of insects, so you may want to try this homemade garlic spray to get rid of aphids or even ants.

Since garlic has such a strong smell, it confuses insects in search of their favourite plants, so this spray works best before plant infestation.  So for maximum effect, spray before pests have become a problem.

David Stern, an organic farmer and director of the Garlic Seed Foundation in Rose, New York gives us this garlic recipe which he says works even for young bean and potato plants or even to spray the soil to get rid of nematodes.

Making the Garlic Spray concentrate:

You must begin by making a garlic spray concentrate so that you can remix some of this concentrate with water to make the mixture to be used on your plants.

Use 2-3 whole garlic bulbs to make garlic sprayTo make your garlic spray concentrate, you will need 2 to 3 whole garlic bulbs (1/4 lb of garlic), 1 quart of water (a little more than a liter), 4 to 5 drops of dishwashing soap (I like to use Murphy soap, a pure vegetable oil soap which is biodegradable), a blender or a food processor, a cheesecloth, and a 1-quart glass jar.


1. Do not peel the garlic bulbs– just separate the cloves.

2. Using a blender or a food processor, add these garlic cloves and 1 cup of water.  Chop until well blended.

Since garlic leaves contain allicin, one of the ingredients that repels insects, you can replace the cloves with garlic leaves if you have lots of garlic plants growing in your garden.

3. Now add the rest of the water and the dishwashing drops to the mixture and blend until the mixture has turned to liquid.  (This usually takes several minutes.)

4. Strain the mixture through cheesecloth to remove bits of garlic that might clog the sprayer.  It’s a good idea to strain a second time if any debris remains in the garlic spray concentrate.

5.  You should now have about 1 quart of concentrated garlic extract.  Store the strained concentrate in a glass jar with a tight fitting lid until you are ready to use it.

Now to make your garlic spray you will use for spraying your plants:

Take 1 cup of the concentrate, mix with 2 1/2 cups of water, and pour this mixture into a pump spray bottle or a pressure sprayer.

Use this garlic spray mixture to spray the plants that are under pest attack or that you suspect are likely targets.


Related Posts:

Mosquito Control – Experimenting With Garlic Spray

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17 Responses to “Garlic Spray Recipe

  • 1
    Nicasio Martinez
    July 7th, 2011 00:42

    Your Garlic Spray Recipe & Get Rid of Ants the Eco-friendly Way resolved issues I’ve been researching online for ages. The Garlic Spray Recipe has helped me to develop an outdoor house, lawn, and garden spray. I’m feeding one variety of ants with the yellow cornmeal (YC) as I type this comment. For smaller and minute ants I dissolved a small amount of sugar in a dish and mixed in the yellow cornmeal, dried in the sun– Wow! It may be necessary to keep a good supply of YC on hand. You will be hearing more from me, since I’ve decided to become a pro of ‘home grown’ choice tomatoes here in the Philippines. In closing this note, I’m looking forward to promote the Garlic Spray as a means to attack mosquitoes that carry dengue fever– killing more children each year than adults. Thanks…/NM

    Hi Nicasio
    It pleases me so when someone writes to say how helpful certain information is for them. Thank you.

    You say you would like to become a pro of “home grown” choice tomatoes.
    Did you know that I have other blogs where you can get information?
    For example is all about soil preparation and gardening tips is composting four different ways from A to Z is a free ebook all about organic gardening you can download contains more gardening tips and ideas.

    I’m sure you could find helpful information to help you become a pro in gardening.

    Finally, I’m curious as to how the garlic spray can help you fight these carriers of the dengue fever. Would you spray your water or what would you spray?
    Please keep in touch and let us know about your successes.


  • 2
    Nicasio Martinez
    July 13th, 2011 07:53

    Indoor Mosquito Control w/garlic spray– diluting the garlic concentrate, to spray the entire length of horizontal ceiling joints, and vertical wall joints, floor to ceiling, and around ceiling light fixtures, there is no longer signs of mosquito infestation in our house. Before using the garlic spray, we would look up and see possibly hundreds of mosquitoes hovering in brightly lit areas of our kitchen. I sprayed, throughout the house, behind and under refrigerators, tables, chairs, shelving, where ever mosquitoes would rest or hide out of sight. Outside I sprayed all windows and door areas, the entire porch area, and believe me I found this to be true– “Mosquitoes do not gather in fields of garlic;” or in homes where a garlic base spray is used. The scent of the garlic disappears but the repelling nature lasts. All this is experimental on my part– but this first week has proven, garlic water-based spray repels mosquitoes. I am hoping someone with a chemistry background will join this venture and we could develop a spray that would be affordable especially to those who live in Shanty Communities (light material homes) here in the Philippines…. At this time I am not spraying water, but in high concentrations I believe it will kill adult mosquitoes and their lava. Mosquitoes are very fragile insects. In the past I’ve used dish washing detergent and water to kill them.

    Thank you for the explanation, Nicasio. Since many people do not read the comments, I have decided to create a post out of this information so that your efforts would get more exposure. Besides being able to attract someone who can help you with your goal, others could also use this idea to spray their lawns or backyard in order to get rid of moquitoes.
    The new post is Mosquito Control – experimenting with garlic spray.

    Please let us know what is happening.

  • 3
    Nicasio Martinez
    July 21st, 2011 14:11

    Update and Thanks– It’s working! Resisting for two weeks, spraying indoors and outdoors, there were no mosquitoes in places where they usually rest or hide. Thursday AM, 22 July 2011 I sprayed, for the second time, indoors. The first spraying was 7 July, explained in detail in the 13 July post. In the bedrooms, no mosquitoes. The kitchen doors and windows are usually open during the day, and I flushed out (what I saw) no more than than three mosquitoes. We rent this house and have not decided to invest in screens. This makes a good test of using the garlic spray recipe. It’s working.

    Today, Friday, I will spray outdoors as detailed in the 13 July post.

    Marcie- thanks for creating– It’s working!

  • 4
    October 6th, 2011 20:00

    Thanks so much for posting this information and for the comments below. I was looking for something to get rid of the mosquitoes in my veggie garden when I read Nacasio’s post on using the spray on his house. We have a major problem with mosquitoes already this year and it is just coming into summer here in New Zealand. So I have already made up the spray and have sprayed around the windows of the whole house and outside in the garden. Can’t wait to see the results.

    One question for Nacasio though – did you wipe the spray on the walls and ceiling with a cloth or just spray everywhere?

    Thanks for the awesome information.

    Hi Karina

    I hope the spray is working for you as well as it did for Nicasio.

    In his comments, Nicasio said that he sprayed so that he could reach the corners where mosquitoes nested.

    Hopefully Nicasio sees your comment. He will be so pleased that someone else is trying the same experiment.
    He would definitely like to know how you fared out.

    Thank you for commenting.

  • 5
    October 17th, 2011 01:23

    Karina– (Nicasio)– is the spelling of my name :) … Indoors I adjust the spray nozzle, on a small spray bottle, to a fine mist, spraying along the continuous length of ceiling and wall corners– ceiling to floor. (The indoor spraying is effective for long periods of time which I repeat only if I see a build up of mosquitoes in their known resting places. I do not apply or wipe interior areas with a cloth.

    My July 13, 2011 comment above gives more detail for additional spray areas. At you will learn of a commercial garlic based product that I would love to introduce to the Philippines or get assistance to develop a garlic based product here in the Philippines where more children than adults die from dengue fever. Garlic is a produce grown here.

    Glad to see a response to my experimenting with a natural garlic base product.

    Thank you for responding so quickly to Karina’s question. She will be happy to get your response.

    I went over to the website and read about their garlic spray. Wouldn’t it be fantastic if people in the Philippines somehow got access to this product or something like it. On a small scale they could use the watered down homemade garlic spray inside and for outside use it full strength. They could add the canola oil and the liquid soap to treat still water.

    I was amazed to read that this “mosquito barrier” liquid, which is almost pure garlic liquid, also got rid of grasshoppers, ticks, fleas, gnats, and even fire ants. The best part is that it is not toxic to animals, people, or the environment. Gosh, I am almost as excited as you are at the possibility that some day people in the Philippines or other hot countries can get rid of mosquitoes and thus eliminate the dengue fever once and for all.


  • 6
    December 31st, 2011 02:14

    I use a very similiar recipe for a garden sprayexcept I use Dr. Bronners soap because it’s certified organic. I usually mix equal parts of the lavender with the like a charm!

  • 7
    June 17th, 2013 20:40

    Oh really? I jut found about a million fire ants on top of my organic garlic plants!!! Now what?????

    Hi Deb
    I have never dealt with fire ants because we don’t have them here in Ontario, but I
    understand that they are very difficult to get rid of.

    Here’s a possible solution to your problem. It is highly suggested that you use rubber
    gloves when doing your mixing if you decide to use this method.

    I just finished reading an article written by a man whose back yard had become infested by
    ordinary black ants. He tried many solutions which did not work. He finally tried the borax
    which can be bought at a pharmacy. This is a very old recipe which works very well.


    As far as I know there are two methods which can be followed when using this method.
    1. In a clean container mix equal amounts of borax and icing sugar. Mix well. Sprinkle the mixture
    on the ant hills or wherever they travel. The ants will inadvertently pick up the borax when they
    go for the icing sugar. Borax kills the ants.

    2. Open a can of Carnation. (If not available, use thick cream) This milk is very thick like cream.
    Make a thick paste with borax and Carnation milk or cream.
    You can then make little balls with this mixture and place on the ant hill or where the ant travels.
    The ants will feed off it and bring it back to the queen. The borax will kill the ants.

    (DO NOT USE BORAX IF YOU HAVE DOGS OR SMALL CHILDREN who could get curious and try eating it.)

    I’ve seen this method work very well on ants, earwigs, and other small insects, but never on fire ants.
    However, if you have no dog or young children roaming around the area, you could try the borax.

    Hope this suggestion can be of help.

  • 8
    March 23rd, 2016 17:19

    I have used the Mosquito Barrier before it work really well, just didn’t like the cost as much being on fixed income and all. So any spray that I can make myself and doesn’t cost a arm and leg is great. I want too spray my yard and plants and porches. I keep hearing garlic is bad for dogs and cats. Is this true or not?

    Hi Imogene

    It is always very important that while spraying and until the spray has dried up, dogs, cats and children should be kept away from the area. Always use caution when spraying any kind of spray as animals and children can be sensitive to different products.


  • 9
    Kathy Young
    May 31st, 2016 20:50

    Hello, came across your website, wish I had found this before I had someone spray my roses. Now I’ll be prepared for next summer! I get spider mites on my roses, they just eat up the leaves. Next year this is what I’m doing! Thanks so much for sharing!! I did see the pepper spray recipe, but I’m afraid of using the pepper since I have asthma. I don’t need to have that this garlic recipe is great!
    Thanks again!

  • 10
    June 22nd, 2016 06:54

    OMG, Thank you so much for your websites. I enjoyed and learned a lot from you. The mosquitos are bad this year in Florida. I have rain barrels and I save water to water my plants. Planning on doing an aquaponic among other projects. Your help on any of these topics or others would be greatly appreciated. FYI: I couldn’t stop reading your sites and comments from others that now I have been up all night. I love reading on herbs, oils, and prefer to stay away from toxins that can harm me, friends, air and land, except for mosquitos of course. LOL

    Thank you again for all your information. Hope to hear from you soon.

    Keep up to great work.

  • 11
    December 24th, 2016 10:57

    there are lots of uses for garlic spray example
    Garlic spray can be used for mosquito’s
    • Garlic spray can be used for insects
    • Garlic spray does a wonderful job of keeping different kind of birds from eating fruits & crops like cherries, pears, apples, figs and berries
    • Garlic spray can also repel dears and some other animals
    • Garlic spray stops acid reflux
    • Garlic sprays Keeps dogs from having worms and gets rid of worms that are there.
    It also Keeps fleas and ticks off dogs by getting into the dog’s system and creating
    a garlic odor that fleas and ticks detect and avoid the dog altogether. Garlic spray reduces a dog’s cholesterol level for good heart function.
    • Garlic spray is good for a humans heart
    • Garlic spray can be used to catch fish
    • Garlic spray can be used to control fungal diseases
    • You can make your garlic spray even more powerful with a few more additives you probably have in your kitchen. Add a tablespoon of crushed hot pepper or a hot pepper sauce to the water while the garlic steeps and it will repel a wider variety of pests. Add a tablespoon of liquid soap or vegetable oil to the mixture, which coats larvae or eggs and smothers them.

    Check for a commercial garlic spray and more ideas of how to use the spray.

  • 12
    December 24th, 2016 11:01

    there is another recipe that helps the plant grow and repels insects
    How to make garlic mint
    • Mint
    • Garlic cloves
    • Cyan pepper
    • A few squirts of biodegradable soap at the end
    • 3 cups of mint leaves and put it into a food processor or a blender
    • Put your garlic in the blender
    • Blend it until its chopped
    • Put it into a pot
    • Add water
    • Add couple of tea spoons to the pot
    • Boil and then let it sit over night
    • Strain it into a large container
    • Add 2 squirts of biodegradable soap
    • Pour it into a sprayer

  • 13
    December 24th, 2016 11:06

    There is another website that u all can go on
    Well worth checking out.

  • 14
    December 24th, 2016 11:20

    hi kathy young
    spider mites like to lay eggs on the bottom of the leaves , it will be better if u spray on the bottom and the top of the leaf

  • 15
    February 17th, 2017 21:28

    I have read the comments (I hope I got them all) and don’t see an answer to my question. Is is safe to spray on plants? And by the way garlic in any form does not kill worms in dogs. It makes their systems an unwelcoming place for worms to live in but it does not kill them. That is an old wives tale and you can find info about this on the net. Just like to old and very wrong wives tale that black dogs don’t get fleas.

    To answer your question, this recipe like any other recipe may or may not be the right spray for your plant.
    The best way to find out is to spray just a little bit on your plant in an out-of-sight spot and wait a day or two before spraying more on the plant to see if the spray is too strong and damages it in some way. That little bit of testing should be done with any spray you use for the first time on a plant.

  • 16
    February 17th, 2017 23:26

    But garlic in particular has several sulfur-based toxins which dogs are scientifically proven to be sensitive to: s-methylcysteine sulfoxide, n-propyl disulfide, methyl disulfide, and allyl disulfide. These compounds, same as in onions, cause Heinz body anemia in dogs and cats which, like any anemia, destroys red blood cells and causes lethargy, nausea, and eventually death by heart failure. This effect can be from one large dose but, more commonly, over an extended period of time. Extremely large amounts at one time can cause immediate liver toxicity.

    No, garlic isn’t as bad as onion, and small amounts may cause absolutely no harm (though such small amounts wouldn’t cause any benefits, either)… but considering the possible danger, it’s not worth the risk of giving them any.

  • 17
    March 21st, 2017 03:01

    Wonderful, wonderful stuff. I’m in New Zealand, and my tomatoes are ripening… and have come to the attention of the local white butterfly/cabbage moth population. I’d removed all the caterpillars I could see, but evidence showed they were still around. I’d made up some concentrate a few weeks back, and decided to try it out – a relatively fine mist spray had them dropping like flies. A-MAZING. Thank you so much.

    It’s so nice to hear from someone who has been successful at getting rid of bugs without poisoning plant and soil.
    Thank you so much for letting us know.


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