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Carpenter Ant Damage


Summary: Is it a carpenter ant damage or termite damage? Both dig into wood. Both can ruin your day. This article will give you some easy ways to identify what's eating your wood.

Pest control experts are often called upon to identify the cause of apparent pest damages to property. Half the time the pest has left the scene of the crime and the only evidence remaining is the damage done. However, a knowledgeable professional should be able to determine the cause simply by examining the damaged wood.

Let's look at how carpenter ants attack wood. True to their name, carpenter ants will tunnel into any wood that suits their purpose, but they don't actually eat the wood. They only work with the wood, creating tunnels and galleries in which they raise their young. The damage may occur indoors or outdoors.

Carpenter_20Ant_20Damage.jpg
Carpenter ant damage

To the layperson carpenter ants and termites look alike and behave in the same way. They both cause damage to wood. However, there is an easy way to tell the two apart. If carpenter ants are the culprits the damaged wood will be free of mud and wood particles and the galleries will be smooth. If the damaged is ragged, thin layers of riddled wood, mostly packed with drying dirt, you can assume you have found termite damage.

Here are some more tips to identify if carpenter ants have damaged your trees:

• Look for frass. This is a pile comprised of soil, dead insects and wood shavings that resemble sawdust. Frass is usually in a small pile shaped like a cone. Similar to your children leaving piles of clothes in their bedrooms, carpenter ants leave piles of frass by their nests. However, the tunnels that carpenter ants create are usually hollow and smooth, in order to give the ants plenty of room to crawl. Their tunnels are extremely clean and lack frass.

Though carpenter ants can cause damage to healthy trees, moist wood is especially susceptible to damage from these ants. Rotting tree trunks, stumps, or roots are often infested with carpenter ants. Healthier, more solid wood is harder for the ants to chew through with their mandibles (commonly known as jaws).

Trees attacked by carpenter ants are usually under stress. The tree is most likely decaying and carpenter ants are just cashing in on the situation. The tree's primary problem is moisture or decay. The carpenter ants are not the cause of the tree's decline.

Carpenter ants build two types of colonies; parent and satellite. The parent colony is the main colony and must be in an area of moist

subtermite_dam.jpg
Termite damage

wood. This colony will most likely be outdoors in trees, stumps or firewood. Satellite colonies can survive indoors. While foraging for food, carpenter ants can find their way into your home and get cozy and comfortable. Again, moisture is the key to their survival. Discovery and elimination of the moisture is the sure-fire way to fight a carpenter ant infestation.

Dust formulations of insecticide are an effective way of treating carpenter ants outdoors. Make sure to use an insecticide that is specifically labeled for carpenter ants and for safe use on trees. Be aware that carpenter ant infestations can be reoccurring, so you may have to reapply the insecticide every few months or so. Unfortunately, this may be the only efficient solution to getting rid of carpenter ants outdoors. If the tree is in full decline, removal of the tree and stump may be your final option.

Remember, the carpenter ants are Nature's way of decomposing dead wood. If the ants are doing their job and not invading your home, leave them do their work.

Click here to watch my short video on how to control ants.





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Comments

Holly
25 Jul 2009, 00:37
Hi,

It's been about 1 1/2 weeks now that we have been having ants in our home. It started on the Master bathroom floor, Then we found one of our night stands full of them in 2 drawers all over our clothes. They are small little black ants. We sprayed and killed these. Then a few days later they were in the kitchen coming down the side of the wall to towards the sink. And then they were on the opposite counter, master closet, and office next to master bedroom, etc. About 5 different locations all on the same side of the house though. My husband sprayed out side and we've also been spraying inside. The weather where I'm living has been record breaking tripple digits most days here in TX. Please help, any advise would be greatly apprecaited. We are going to spay the entire house this weekend and check the attic. By the way, the ones in the kitchen didn't go to our food. We also have seen them in the yard coming out the ground and on the side walk near our house. As I mentioned they are small little black ants. Ocassionaly there will be a larger sized one. Thanks again. Hopefully we will not need to call anyone out and will be able to fix this ourselves. We have never had any problems in the 5 years living in this home which we built .
Ryan
21 May 2010, 14:10
Last year I had carpenter ants inside my home. Winged ants and worker ants. I contracted Terminix to take care of the problem and it became very costly. Just yesterday I noticed some winged carpenter ants in the large tree in my backyard. Do winged ants signify that the ants have been present for years? If I cut down the tree will the ants just come towards the house? I would much rather have the tree removed then consistently paying for insect control. Is it possible to save the tree and get rid of these carpenter ants? What are my best cost effective, headache free options? I want to be pro-active before the inside of my house is taken over by the pests again.

Your help is appreciated.
Thank you.
Ask the Exterminator
21 May 2010, 14:35
Carpenter ants only attack dead or dying trees. It may be too late to save your tree. The winged ants are the reproductives that swarm out each year from the established ant colony. They try to mate and establish new ant colonies. Taking the tree down does not mean your house will be attacked by carpenter ants, but you need to be sure your gutters are not backed up creating soften wood. They will attack wood that is wet and soft. You need to speak to a tree expert to see if the tree can be saved.
Rick West
11 Aug 2010, 18:36
We have several areas where the small ants have been eating Styrofoam and leaving piles of dust in the general area...We also have another area where they have started to eat the fiberglass insulation and leaving yellow dust in a 6 foot area from the soffits on our back deck? They are less than a quarter inch and black in color. Any ideas all to how to manage these little guys and how or what stage is my next level of attach...should I bring out the big boys and eliminate the million plus army? Thanks Rick
Ask the Exterminator
12 Aug 2010, 10:13
The key to control is identification. First, determine if, in fact, your ants are carpenter ants. If they are you will need to monitor their night activity to see if you can determine where they are nesting. They move in trails and you might be able to locate and treat the nest to stop their invasion.
Barbara Omonte
26 Aug 2010, 18:29
I noticed a buzzing noise in rhe living room in one of the outside walls. When I went downstairs to the basement I found a sand colored powdered dust under the area where the noise was noticed.What can this be? I thought possibly electrical until I saw the pile of dust.
Thank you,
Barbara
Angela
30 May 2011, 08:46
I have noticed in the early spring black ants in my downstairs bathroom. Last week they were all congragating on the window sill when I opened the window they were all on the screen. Black and winged ants. I got some spray and traps. That helped somewhat until I noticed huge black ones in my mudroom which I sprayed all along the base and under the storm door. Is there anyway to kill them without the expense of a terminator?
Ask the Exterminator
30 May 2011, 17:37
Angela,

Please read the article at this link: http://www.asktheexterminator.com/Carpenter_Ants/Carpenter_Ant_Help.shtml. It will tell you what products work to control carpenter ants.
Natasha
01 Jul 2011, 08:32
Over the course of thre last wek i noticed one or 2 small flying ants. At first i thought these were just coming in through the window. Then yesterday my front room was covered in them an as was killing them i noticedtat there was what seemed to be an ant nest next to the door to te cupboard under the stairs.I have put ant powder down around where the skirting boards are but am now questioning if tese really are carpenter ants as, although i have found there access point(there s 2 airbricks outside with bushes on outside and have noticed a whole in wall above and behind the skirting board) upon inspectin of my cupboard i have noticed piles of dirt/sawdust like stuff along the wall inside this cupboard and something ver tiny moving. Could these be terites and if so, will the ant powder kill them off?
Ask the Exterminator
01 Jul 2011, 09:15
Different species of ants eat different foods at varying times during the year. That's why it's important to get your specific ants identified. Then, you'll know if they are carpenter ants or pavement ants or termites or whatever. Right now you're only guessing. And, ant powder is probably not the right kind of material to use if you are hoping to kill off the nest. That powder won't have any effect on them if they are termites.
Lande
04 Aug 2011, 12:29
I have a strong smell coming from one of the rooms of our new home. Right outside this room is a garden and I saw teams of ants going thru the foundation cracks. I have used insecticides on the the cracks but how can I tell if they have damaged wood? It does smell like moist wood and I'm thinking maybe something is rotting and they are eating or building in it. I did notice the piles of dirt/saw dust. Does the smell & pile mean they ARE attacking wood even though they are going in through the cement foundation? Can an exterminator hlp me determine if/where wood eating issues. Any answer would be appreciated. Thanks.
Ask the Exterminator
31 Aug 2011, 09:36
You most likely are seeing carpenter ants. They are attracted to moisture and wet wood. From your explanation, I would call in a pest control company to hear what they recommend
Anna
13 Nov 2011, 22:57
I am currently sanding down an old cupboard I picked up. I noticed some ant holes.... and some dust in the drawers of the cupboard. There are no ants in sight though - just this dust from the drawers. The bottom floor have some 'tunnels' like in your pictures but not too many

What would you suggest as this cupboard is awesome and I dont want to make firewood out of it if I can save it.
Ask the Exterminator
14 Nov 2011, 05:33
Treat the wood with Bora Care. The product soaks into the wood and kills any wood infesting insect. Bora Care is available at this link: http://shop.asktheexterminator.com/bora-care.html.
Christine
18 Dec 2011, 10:20
I was just shown extensive carpenter ant damage by one of my tenants. The entire kick plate under their back door is just gone. There are fragments of wood with tunnels running through them but that's it. I haven't had the chance to look in the cellar yet so I'm not sure if it is all the way through. No ants were seen but it's cold outside now. When I was painting the unit next to this one, dead ants fell out of the outlet when the covers were taken off, giving me the impression that they're running all through the house. My question is this... Are they hibernating now or living comfortably in the walls of the house? Do I exterminate now or wait until spring when they get active again? I'm so afraid of what I'm going to find when I get into their cellar to check. I checked the cellar sills in the next door unit and didn't see anything, however, kicking at the kick plate outside felt like half was solid and half was punky or damaged. Thanks for your help!!!
Ask the Exterminator
18 Dec 2011, 11:11
The ants hibernate during the winter. They will be active, however, if a nest is located in a heated portion of a building. In all cases, moisture is the life-source for the ants. You have a roof leak or some other source of moisture collecting. Fix that leak and you'll fix your carpenter ant problem.

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