Wilson® ANT OUT®
Ant Killer


Former name: Wilson Ant Out Ready-to-use Ant Killer (1L)

When you’re taking on unwanted ants, you want to get rid of them as soon as possible. This easy-to-use spray kills ants quickly (within 15 minutes to 1 hour) and efficiently, with long-lasting effects. It can be used both indoors and outdoors, and is perfectly safe for people and pets when used as directed. It contains an essential oil, leaving behind an agreeable rosemary scent. It comes in a 1 L spray bottle.

Other application types available

Benefits and characteristics

Wilson Benefits Clock

Kills ants fast with long-lasting results

Kills ants fast with long-lasting results

Controls ants indoors and outdoors

Controls ants indoors and outdoors

Where to use

  • Indoors and outdoors

  • Lawn

  • Flower gardens

  • Edible gardens

  • Trees and shrubs

  • Patios, porches and decks

  • Building foundations

Effective against

How to use Wilson ANT OUT Ant Killer spray

Step 1
Shake well before using.

Step 2
Apply with included trigger sprayer.

Step 3
Adjust nozzle to suitable spray pattern.

Step 4
Apply directly to ants, if possible.


Treatment must only be repeated after 7 days if pest problem persists or reoccurs.



Indoor use
Thoroughly treat areas where ants are found such as cracks and crevices in walls, along and behind baseboards, water pipes and tanks, and behind and below appliances.

Outdoor use
Treat areas where ants are found such as exterior surfaces of buildings, patios and porches, near foundations, and places where ants enter (screens, doors, window frames).


  • Do not allow people or pets to enter treated areas until sprays have dried.
  • Ventilate treated areas after application by opening windows and doors or by using fans.

Do not reuse empty container. Wrap empty container and discard with household waste. Unused or partially used products should be disposed of at provincially or municipally designed hazardous waste sites.

Keep out of reach of children. Keep from freezing. Store in a cool, dry location.

For additional product information or in case of emergency, spills or fire, call toll-free 1-800-268-2608.


General precautions

  • Keep out of reach of children.
  • Wash thoroughly after handling and before smoking or eating.
  • Environmental: toxic to aquatic organisms, birds, bees and beneficial insects.


Hazards to humans

Can cause irritation to eyes. Can be harmful if ingested.


If on skin or clothing

Take off contaminated clothing. Rinse skin immediately with plenty of water for 15-20 minutes.


If in eyes

Hold eye open and rinse slowly and gently with water for 15-20 minutes. Remove contact lenses if present after the first 5 minutes, then continue rinsing eye.


If swallowed

Have person sip a glass of water if able to swallow. Do not induce vomiting unless told to by a poison control centre or doctor. Take container, label or product name and P.C.P. Registration Number with you when seeking medical attention.


In every case, call a poison control centre or doctor for treatment advice.


Download safety data sheet link.

Permethrin 0.25%

Frequently asked questions about Wilson ANT OUT Ant Killer spray

ANT OUT Ant Killer contains permethrin which is an insecticide in the pyrethroid family. Pyrethroids are synthetic chemicals that act like natural extracts from the chrysanthemum flower. Permethrin can affect insects if they ingest it or touch it. Permethrin kills ants by attacking their neurological systems.

When used as directed, ANT OUT Ant Killer is safe for people and pets. An insect cannot break down the permethrin molecule quickly and therefore is toxic/deadly to insects. People and dogs can break down the molecule quickly. Cats are more sensitive to permethrin than dogs or people due to the fact that it takes their bodies a long time to break it down. Make sure any area is dry before allowing people or pets back into the area.

ANT OUT Ant Killer effects will last up to 2 weeks. The permethrin molecule is broken down by UV rays in sunlight, so the brighter the area sprayed the sooner it will lose its effectiveness.

It does work relatively fast as it will kill ants within 15 minutes to 1 hour.

It is extremely effective in controlling ants. Once an area is sprayed, you will not see any ants for up to 2 weeks. If you want to eliminate an entire colony, we recommend also using Wilson ANT OUT Ant Bait.

ANT OUT Ant Killer contains a water-based formula and will not leave any residue on flooring, carpets, baseboards, patios, sidewalks, etc.

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