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Mother Nature

"This is about my 10th year or so of using your garlic spray. I have absolutely no mosquitoes."
M. G., Providence, RI


How to mix and apply Mosquito Barrier


Mixing & Spraying Instructions:

Professional lawncare specialists using Mosquito Barrier prefer this formula to all others:


If there is NO STANDING WATER in the area use this formula:

Mix 4 ounces of Mosquito Barrier into one gallon of water. Stir well and spray about an hour before sundown.

  • 1 gallon water
  • 4 ounces Mosquito Barrier

    If there is STANDING WATER in the area - add canola oil to the mixture using this formula:

    For each one gallon of water, add 4 ounces of Mosquito Barrier plus 2 ounces of Canola Oil (found in your local grocery store's cooking oil section) and 1 teaspoon of Ivory liquid soap or any other non-scented liquid soaps (not detergents). Stir well and spray about an hour before sundown.

    NOTE: The oil is used to put a coating of oil on the standing water to suffocate mosquito larvae. Soap helps the garlic oil mix well with water.

  • 1 gallon water
  • 4 ounces Mosquito Barrier
  • 2 ounces canola oil
  • 1 teaspoon liquid soap
  • You don't need an expensive gas-powered backpack sprayer to apply Mosquito Barrier in your yard. Mosquito Barrier can be applied with with just about any pump-up sprayer from your local hardware store or nursery and range in cost from under $20 for a basic canister sprayer to about $75 for a basic backpack sprayer. Pictured below are two examples of typical pump-up sprayers: a canister sprayer on the left and a backpack sprayer on the right.


    pump sprayers

    Do not spray if it has just rained, the foliage is wet or if rain is expected within 24 to 48 hours of application. Apply on a dry lawn and do not run sprinklers for 48 hours after application.

    To apply this solution, you can use a canister type sprayer. They are available at most home improvement stores like Home Depot and Lowe's and generally cost between $16 to $20 each for a basic model. They typically hold from 2 to 3 gallons of liquid. Canister sprayers must be pumped up with air pressure and they have a wand for spraying. The formula for a 2 gallon canister sprayer is to add 8 ounces of Mosquito Barrier and then fill canister with water. Mix well and spray.

    Garden hose-end sprayers are not recommended because they are generally very inaccurate and the droplet size is larger than desired. However, if you insist on using a Garden hose-end sprayer - there are two types, one type has a dial for ounces per gallon and the other does not have a dial. For both types, mix 12 ounces of Mosquito Barrier with 20 ounces of water and use this mixture to completely fill the container. On the dial type, set the dial on 2 ounces per gallon, or 4 tablespoons per gallon. Normally it takes about 7 minutes to empty the container with the garden hose on full blast, so you need to be quick, or fill it again until you have covered everything we recommend.

    One gallon of Mosquito Barrier is enough for the whole Summer mosquito season. Sprayed every 3 weeks, for the average half acre residential lot, one gallon is enough for 10 applications, if necessary.

    To rid your yard of ticks, see our directions on the FAQs page on this website.

    No harmful chemicals, safe around children and pets when used as directed, and is biodegradable.

    Mosquito Barrier is patented and you may see the patent by clicking here.



    1. When mixing (for use on standing water), mix the Mosquito Barrier and soap together and then add it to the water. Stir the entire mixture until homogenous. If you have very hard water, add a bit more soap to make everything mix well.

    2. When spraying grass with the wand on the end of your pump-up Hudson type sprayer, hold the wand nozzle about 8 inches above the grass and sweep it back and forth. Make sure the spray gets deep into the grass and use a small spray droplet size.

    3. Spray all dark places such as under porches, in vents leading to basement or beneath the house, even spray sides of house, porches, driveways and areas that are not covered with grass - this all helps.

    4. So long as you use at least 4 ounces of Mosquito Barrier per gallon of water you are okay. You may use more. Many of our professional spray people use 4 to 6 ounces of garlic per gallon of water. This does not harm plants or animals and works very well.


    There are a few things you'll need to know to effectively repel ticks from your yard and around your house. Mosquito Barrier doesn't kill ticks on contact but it does repel them. Ticks are carried into your yard by animals such as deer or squirrels. A tick will "hang out" in tall grass and on tall weeds as well as on fence posts, wood siding on your home or shed and in shrubs and bushes. They like damp places. They will wait for you to brush against the tall grass or shrub and will cling to you. Knowing this, spraying for ticks is much like spraying for Mosquitoes with a few exceptions:

    There's no need to spray standing water or the leaves in a tree. Ticks wait for their prey relatively close to the ground. Do make sure you spray the trunk of the tree. Also make sure you spray all wood fence posts in the area. Spray the wood siding on your home up to a height of about 5 or 6 feet from the ground.

    You should also spray under porches and in dark, shaded areas (they rest there in heat of the day). Spray grass, shrubs and all greenery. Don't forget to spray woodpiles and re-stack any firewood - where they may be hiding. Keep grass cut and eliminate tall weeds. Try to keep children and pets inside a sprayed, fenced area. After the first spraying, which should be once over and then once over again, repeat spraying in 7 days and thereafter about every 3-4 weeks during tick season.

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