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How to Kill Carpenter Ants

If you see an ant in your home, don’t run for the spray -- you will need a more thorough elimination process to say goodbye to these pesky little creatures.


  • Step 1: Find the nest Find the carpenter ant nest. Look for wood shavings or ants foraging.
  • Step 2: Apply dust Apply Drione or PyGanic Dust to this area with a hand duster.
  • TIP: Use a drill with a 3/16-inch bit to drill a hole into hidden or enclosed areas.
  • Step 3: Remove all covers and dust Remove all covers for electrical or plumbing systems and dust into the walls in these areas.
  • Step 4: Spray the perimeter of the home Spray the perimeter of your home every 4 to 8 weeks with cypermethrin or deltamethrin. Cover the foundation, 2 to 3 feet up, and the ground, 4 feet wide.
  • TIP: Use a pump sprayer to apply the spray.
  • Step 5: Bait the yard Bait the yard a few times a year with carpenter ant granules.
  • Step 6: Bait your home Apply carpenter ant gel any place in the home that you see ants.
  • Step 7: Clean up Do not leave food lying around the house. Ants will be attracted to the deadly gel if there isn’t any other food for them to eat.
  • FACT: Carpenter ants come in many colors: black, yellow, red, and brown.

You Will Need

  • Drione or PyGanic Dust
  • Hand duster
  • Cypermethrin or deltamethrin
  • Pump sprayer
  • Carpenter ant granules
  • Carpenter ant gel
  • Drill with 3/16" bit (optional)
  • Pump sprayer (optional)

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