Carpenter Ant Problem! - Pest Control - DIY Chatroom Home Improvement Forum

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Old 07-17-2009, 03:01 PM   #1
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Carpenter Ant problem!

I am in desperate need of advice. My husband is neither handy or helpful with this problem and I'm going batty with anxietiy over these nasty buggers.

Our house is only 5 years old. We are bordered by woods on two sides. I am seeing winged ants IN the house now - I've read that means an established colony is in the home. I see anywhere from 10-30 ants IN the house per day. I found a trail (possibly 2) in my laundry room. I also think there are some living probably in my garage door jams - other side of house. I killed a nest in my front porch pillar last year - the little buggers took all their eggs out so I knew I got that nest - and I threw them out.

I've heard that i need to find water damage, well my house is only 5 years old. We had a minor flood because our sewage lift broke - actually that happened twice. but the first three feet of wall is cement (unfinished) and in that room (laundry room) the interior walls hardly got wet. My daughter likes to make puddles a lot - so base trim etc will get wet - couple spots that are peeling. We also had a foundation leak in our lower level bathroom, but again - concrete wall involved - shims to drywall - maybe the drywall got damp but no studs involved and the ants aren't trailing near there.

The two trails I found are in the laundry room by an exterior unfinished wall - one goes up and down a stud along the edge of the house - some stop at the concrete wall and go behind the drywall and others continue to the floor to play down there. The other goes from behind the insulation on the other side of the room along a i beam to under the bathtub upstairs. I can see all the sub floor beneath that tub and see nothing indicating damage. There is a hole in the sub floor where the plumbing exits the tub and that is where they are going in. Looks like they have messed with that coating they put under the tub- appears to be pulled away from the tub bottom. Not sure if this is one large nest or two small ones or what. We do have trees near the home but none touch - my husband did trim those back last year.

I just got off the phone with one exterminator and he says they're probably living in wall voids - I'm not seeing frass anywhere. It's gonna cost me around $400 for a year and at this point I'm ready to just pay if it will kill them. I have put out terro and that made them stay out of my kitchen. I just put the terro out by these two trails, but I've had it very nearby for sometime with nothing. I've also had it out in the garage for a long time (I'm pretty sure there are nests in one if not both of the door jams) and it doesn't seem to be doing much there either. Advice?? Do you think I should just pay the vultures to come poison my home? I don't know what to do and my husband is sick of hearing about it - he doesn't' think it's a problem - he's also the epitome of not handy by the way.


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Old 07-17-2009, 07:18 PM   #2
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Every house that i have ever owned had ants that found their way in.
I just place ant traps all about and RAID has a spray can that is sprayed down the entrance way, using a plastic straw. This i have found to be effective.
Of course, next year they ( or their cousins) are back and then I repeat the process.


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Old 07-17-2009, 07:24 PM   #3
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I buy spary at HD too - but mix it & put it in a spray bottle - 1.5g
I spray the entire outside foundation whenever I have a problem
I repeat every 2 weeks
Not too many problems at this house
And with a kid I cut way back on any insecticides
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Old 07-21-2009, 02:28 PM   #4
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Ortho makes a spray for carpenter ants it used to be called ortho-klor but now it is called home defense. I have a loghome and use it for carpenter bees mostly but I have noticed on the bottle it says for carpenter ants as well. I get it at Lowes 1 pint concentrate is about $20.00. and mixes a lot of gallons. good luck!
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Old 07-21-2009, 03:05 PM   #5
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You have a nest in the house. You need to find it and eliminate the wet area that is attracting them.
It could be a fascia board that has begun to rot. The frame of a door or window that is in fairly constant contact with moisture.
Many times you can watch them outside climbing on the house to get an idea of where the nest is.
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Old 07-24-2009, 01:39 PM   #6
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Yeah, it's likely there is one or more large nests somewhere that you need to find and eliminate. It's obviously easier said than done, though.
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Old 08-04-2009, 04:15 AM   #7
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Depending on the species of carpenter ant threatening your home, you may use an ant bait. Heat three cups of water, and then add one cup of sugar and 4 teaspoons of boric acid powder. Stir the concoction to dissolve the ingredients. Place a wad of cotton batting on a jar lid shallow enough to allow ants to crawl inside. Soak cotton with the boric acid solution and position the lid in an area where you see the most ants. Replenish the solution on a frequent basis, making sure that pets and children do not come in contact with the remedy.
Sprinkle a bit of baby powder around your house to keep ants from entering. For some reason, the insects will not cross this substance.

Try this. It works.
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Old 08-04-2009, 10:53 PM   #8
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the talc powder makes them suffocate or messes with the exoskeletons or so I've read...

Bifenthrin is some powerful stuff, available on ebay...
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Old 08-21-2009, 02:16 PM   #9
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Diatomaceous Earth

Find some Diatomaceous earth (check as there are different grades), its natural, cheap, can be watered downto spray into crevices.

It can if you like be eaten, as it only annoys insects, like microscopic abrasive, with added whizz.

It is a food grade preservative used for grain storage, so if you are worried about ingesting it, you already have !!

Look it up on google, even here in really expensive Denmark the branded version is just over 1 sterling per Kilo, sold in many sizes, many uses, best for inside. Have a search and read cool stuff for river mud ! or its probably on ebay at ten times the price, 1lb.



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bugs , carpenter ants , exterminator

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