Mosquito and Tick Barrier


Guarantee: Garlic Juice 99.3%, Potassium Sorbate 0.2% PCP#: 31022

A very strong liquid garlic which contains a natural sulfur to repel mosquitoes and ticks. Farmers and master gardeners have been using garlic to keep insects away for generations! Just one spraying of the all natural, liquid garlic-based Mosquito and Tick Barrier will keep mosquitoes and ticks out of your yard and away from your home for nearly a month. Any odour dissipates in a matter of hours.

For best results repelling ticks:

  • Apply in May and into June when nymphs are most active.
  • Empty objects that can collect water, such as flower pots and bird baths.
  • Clear tall grasses and brush around your home and the edge of your lawn.
  • Place a 3-foot wide barrier of wood chips or gravel between lawns and wooded areas to restrict tick migration into recreational areas.
  • Keep playground equipment, decks, and patios away from yard edges and trees.
  • Discourage unwelcome animals (such as deer, raccoons, and stray dogs) from entering your yard.

Spraying tips:

  • Start spraying from the area you wish to protect and work your way out.
  • Be sure to spray grass until it’s wet, and spray the undersides of foliage. Insects love the bottom sides of leaves.
  • Spray all grass, shrubs, and plants, not just the perimeter of the property. Be sure to include shady places such as under porches, decks, and the side of your house (test for staining first). Note that spraying into wood siding or decking may cause odour to last longer than a couple of hours.
  • Spray up into trees about 3-4 meters.
  • If you still have spray dilution left after spraying your entire yard, continue spraying until the mixture is used up.
  • When mixed with canola oil and water, Mosquito and Tick Barrier will coat standing water with a very thin film of natural oil. This oil will suffocate mosquito larvae which can develop in standing water.


  • Is Mosquito and Tick Barrier safe for children and pets? Yes! There are no poisons or harmful chemicals in Mosquito and Tick Barrier, just 99.3% garlic juice with some food grade preservatives added.
  • If I don’t use the entire supply of Mosquito and Tick Barrier, will it stay good until next year? Put the lid on tight, store it in a cool place and it should last about two years. In a refrigerator at 40 °F (4°C), it will last several years. Do not let it freeze.
  • How much Mosquito and Tick Barrier will I need? You will generally use half a litre to a litre with each spraying, and you may need to spray three or four times during the summer mosquito season. So you will need between two and four 1-litre bottles for the season, depending on the size of your yard.
  • Do I have to spray again if it rains? Do not spray if rain is predicted in the next 24 to 48 hours. After spraying and having about 48 hours to dry, Mosquito and Tick Barrier will generally be effective even through two or three moderate rain showers. The best way to determine when to spray again is to look for mosquitoes. If you see them returning, it’s time to spray again.
  • Is Mosquito and Tick Barrier harmful to beneficial animals like birds, bees, ladybugs, and butterflies? No, not at all. Birds, bees, and ladybugs are not bothered by the garlic spray. Butterflies are also not harmed by it, but it is still best to avoid insect stress by not spraying it on them directly.
  • What differentiates Mosquito and Tick Barrier garlic juice from ordinary garlic? Click this link [PDF] to view a chemical analysis of Mosquito and Tick Barrier, done by Larry D. Lawson, PhD, at Silliker Laboratories. Mosquito and Tick Barrier is produced from a unique strain of garlic with a high allyl sulfide content.

DIRECTIONS FOR USE: Shake well before using. Mix Mosquito and Tick Barrier in water at a rate of 30 mL/L. If mosquitoes and ticks are already resent, it may be beneficial to double the amount of Mosquito and Tick Barrier per litre of water. To aid mixing and spreading of the spray solution, especially if you have hard water, up to 10 mL of mild liquid soap per litre of water may be added. If a sticker is desired to aid retention of the product to plants, up to 20 mL of vegetable oil (canola or corn oil; do not use soybean or peanut oil) with up to 10 mL of liquid soap per litre of water may be added. If adding soap or vegetable oil and soap, mix well with undiluted Mosquito and Tick Barrier, then dilute the mixture in water and stir well. No danger to plants is expected if label directions are followed, but test on a small area if in doubt about the sensitivity of a particular plant. For best results spray in the early morning or early evening. Avoid spraying in the heat of the day. Spray all foliage with a small spray droplet size until run-off occurs. Use in areas that attract mosquitoes and ticks such as grass, plants, shrubs, and under wood piles, decks, and porches. Re-apply after heavy rain or if mosquitoes and ticks continue to be a problem. Spraying for tick nymphs should start in late spring or early summer.

PRECAUTIONS: Keep out of reach of children. Do not swallow. Avoid getting on skin and in eyes. May cause skin and eye irritation. Avoid inhaling/breathing mist or vapours. Potential skin sensitizer. Apply only when the potential for drift is minimal. Individuals who are sensitive or allergic to garlic should avoid handling Mosquito and Tick Barrier. Individuals who are sensitive or allergic to garlic should avoid treated areas until dry or after a heavy rain. Do not spray on Blue Spruce trees.