Detailed macro shot of a honeybee on a textured wooden surface in nature.

how to get rid of carpenter bees

ByBob Womack

Carpenter bees may look like harmless bumblebees, but these insects can cause significant damage to wooden structures. Unlike termites, carpenter bees don’t consume wood, but they drill perfectly round holes to create nesting tunnels, weakening decks, fences, and home exteriors over time. If you’re dealing with a carpenter bee infestation, here’s how to effectively get rid of them and prevent future damage.

Identifying Carpenter Bees

Before taking action, it’s important to confirm that you’re dealing with carpenter bees. These bees are:

  • Similar in size to bumblebees but have shiny, hairless black abdomens.
  • Often seen hovering around eaves, wooden railings, or decks.
  • Non-aggressive; males may act territorial but don’t sting, while females sting only if provoked.
  • Known for leaving round entry holes (about ½ inch in diameter) in untreated or weathered wood.

How to Get Rid of Carpenter Bees

1. Seal Existing Holes

  • Wait until the bees have left the tunnels (usually in late summer or fall).
  • Fill the holes with wood putty, caulk, or steel wool to prevent reentry.
  • Paint or stain over the sealed area to discourage future drilling.

2. Use Insecticide Dust or Spray

  • Apply an insecticide labeled for carpenter bees directly into the holes.
  • Leave the treatment for a few days to ensure the bees come in contact with it.
  • After the bees are eliminated, seal the holes as mentioned above.

3. Use Natural Repellents

If you prefer non-toxic methods, try these natural repellents:

  • Citrus spray: Boil citrus peels in water, let it cool, and spray it around nesting areas.
  • Almond oil or vinegar: These scents repel carpenter bees and can be applied near entry points.
  • Essential oils: A mix of tea tree, eucalyptus, or peppermint oils diluted in water can deter bees.

4. Set Up Carpenter Bee Traps

  • These specially designed traps mimic nesting holes and lure bees inside, preventing them from escaping.
  • Position traps near existing holes or high-activity areas for maximum effectiveness.

5. Replace or Protect Vulnerable Wood

  • Paint or stain all exposed wood surfaces, as carpenter bees prefer untreated wood.
  • Use hardwoods, which are less attractive to them than softwoods like pine or cedar.
  • Cover areas with metal flashing or vinyl siding to prevent new tunnels.

Preventing Future Infestations

  • Maintain Painted and Treated Wood: Regularly paint, stain, or seal wooden surfaces to make them less inviting.
  • Hang Decoy Nests: Carpenter bees avoid competing colonies, so hanging a fake nest may discourage them from settling in.
  • Use Sound or Vibration Deterrents: Devices that emit sound or vibration can make the environment less hospitable.

When to Call a Professional

If the infestation is severe or DIY methods fail, consider calling a pest control expert. Professionals have access to stronger insecticides and methods to prevent long-term damage to your property.

By taking the right steps, you can eliminate carpenter bees and protect your home from further destruction. With proactive maintenance and deterrents, you can keep these wood-boring insects at bay for good!

Similar Posts