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How To Tell When Carpenter Ants Have Invaded

carpenter ant up close

The signs of a carpenter ant infestation are often subtle. Really subtle. You wouldn't think so. But that's how it is. These ants have some natural behavior patterns that make them difficult to detect. They are mostly nocturnal. So they come out while you're sleeping. They prefer to feed on food outside of your home. So you might never have the warning signs of damaged food packages in your kitchen or pantry. And they often attack wood in hidden locations. Let's look at the problem a little closer.

If you're sitting on your deck and you see dozens of black ants crawling around, consider yourself a lucky homeowner. Carpenter ants prefer to be in shaded, moist areas. If you want to know whether or not your deck is being damaged by carpenter ants, you need to get under it (if you can). Examine the underside for frass stuck to the wood of your deck or littered on the ground underneath. It may also be clinging to the side of your foundation wall. Decks are a common target for carpenter ants, especially untreated, unstained and unpainted decks that have been damaged by the sun. If you see signs of carpenter ants in this location, let it prompt you to contact a licensed professional and make sure those ants haven't gotten into your home.

On the inside of your home, there are a few places you can look for the frass created by carpenter ants:

  • If you have a basement, you might find frass clinging to your soleplate, trusses, or concrete walls.
  • Another great place to look is in your attic space. Carpenter ants commonly attack roof areas where wood has been compromised by rainwater. If you have a finished attic space, you're going to need to get into the voids to find this frass.
  • Does your home have a crawl space? If it does, it is a good idea to get into that space periodically and do a check for carpenter ant frass and also termite shelter tubes. The darkness and moisture in crawl spaces make them ideal for pest activity and pest damage.

One Ant

When a home has a carpenter ant infestation those ants rarely come out in force, even when there is an easy food source like a bowl of dog or cat food sitting on the floor of the kitchen overnight. Carpenter ants can find a lot more to eat outside of your home. But, they will send a scout or two to check things out inside. If you see one big, black ant every once in a while, take that as a big warning sign. That one ant could have come from a colony of thousands.

Winged Ants

As a colony matures, it will produce winged ants. These are male and female reproductive ants. They have one job: create new nests. If you find these winged ants inside or outside of your home, they are a warning sign of a current and mature infestation on your property. Don't shrug that sign off. Contact a licensed and certified professional to do an inspection.

Winged ants may seem like an easy way to tell that you have a carpenter ant infestation but keep this one point in mind. Swarms don't last for more than 30 minutes. What does that mean for you? A swarm could happen in the time it takes you to run to a convenience store and back. You might never see those flying ants. It is important to keep an eye out for shed wings. If these wings are left in a visible location, you may get the warning you need to prevent ongoing damage to your home.

Damage

Last, but not least, you may detect carpenter ants by the damage they do. If you see split wood on your deck, holes forming on window or door frames, carved areas or holes on your fence, trenches in garage rafters, etc., you may have a carpenter ant problem.

Carpenter ants can be destructive pests when they're allowed to be. Don't let an infestation go unchecked. Reach out to a professional for a pest control inspection.

If you need pest control service in Illinois, remember that the industry-leading pest control team at Quik-Kill Pest Eliminators is standing by to assist you.

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