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Author Topic: HELP !!!! Carpenter Bees are eating my house!  (Read 4881 times)

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Offline DR_Buck

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HELP !!!! Carpenter Bees are eating my house!
« on: June 06, 2010, 11:50:22 am »
My house is mostly vinyl siding with very little exposed wood.  This is because I hate painting.  My porch has spindle rails and turned vertical posts.   They are all made from treated lumber that was installed and exposed for about 5 years before painting.  When we painted them last year we found a number of bee holes bored into the posts that we filled with bug spray then wood filler before painting.  We though that would be the end of it.  

Not so.   This year so far we have found almost a dozen new holes bored and piles of sawdust on the deck on 4 of the 11 vertical posts.  I keep spraying to kill the bees when we find new holes.  Is there anything we can add to the paint to deter them from boring?
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Offline Warbird

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Re: HELP !!!! Carpenter Bees are eating my house!
« Reply #1 on: June 06, 2010, 12:14:16 pm »
This may be a stupid question but are you sure it is bees?  You might be spraying for the wrong kind of bug?

Offline Tom

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Re: HELP !!!! Carpenter Bees are eating my house!
« Reply #2 on: June 06, 2010, 02:15:41 pm »
Naw, I'll bet he's right. Carpenter bees are voracious little buggers that will keep coming back to the same place over and over again.  This spring was bad around here for them.  They were so thick out in the barn that it was like big flies around a pig sty.

I know of nothing that will deter them.  It sounds like you are doing about all that can be done and that is killing the adults with an insecticide and putting poison in the holes.  Leaving the holes open awhile might draw more bees into a poisoned hole, I don't know. 

The mud daubers patch up the holes here about as fast as the carpenter bees make them.  Those two species make some mighty interesting engineers.  Both are as anal as can be about the perfection of their work.  :D

You might try giving the kids a tennis racket and a BB gun.
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Offline Chris Burchfield

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Re: HELP !!!! Carpenter Bees are eating my house!
« Reply #3 on: June 06, 2010, 03:31:36 pm »
I have the same problem under the lean-too on my shop.  Cedar two by's.  I wait and watch em go in the hole then WD40 or Wasp and hornet the hole.  After a minute or so, they usually back out and drop to the ground.  You could use a mix of 50 % water and liquid dish washing soap and shoot the this in the hole with a straight stream to flood it.  Bees and wasp breath through their abdomen.  Once the abdomen is coated, they can't breath, they expire.
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Offline fishpharmer

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Re: HELP !!!! Carpenter Bees are eating my house!
« Reply #4 on: June 06, 2010, 06:08:11 pm »
I used to have that problem in my old house.  I would spray a dose of Diazinon into the bee "hole" and then fill the hole with a good quality silicone caulk.  Then spray regularly with a dose of Diazinon.  Follow the label.   That slowed them down quite a bit.
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Offline ohsoloco

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Re: HELP !!!! Carpenter Bees are eating my house!
« Reply #5 on: June 06, 2010, 09:53:35 pm »
I've squirted diesel fuel in some holes that I found in my window casing...I used the diesel fuel as the solvent in my stain when I put on the siding.  When I found one starting a hole on the underside of a window sill, I just sprayed some ant & roach killer along the bottom of the sill, and they left it alone.

I also have a stack of white pine behind the house (left over from the siding job), so that may be working at bait to keep then out of the house  :D

Offline Raider Bill

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Re: HELP !!!! Carpenter Bees are eating my house!
« Reply #6 on: June 06, 2010, 11:23:50 pm »
I've been using  PB blaster both in the hole and while in flight. Works pretty well.
I'd sure like to find something that keeps them away though.

My friend that built the log cabin is getting ate up with them.
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Offline easymoney

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Re: HELP !!!! Carpenter Bees are eating my house!
« Reply #7 on: June 06, 2010, 11:42:57 pm »
tom mentioned mud daubers. they will daub up any hole they find. i have found air tools and hoses that would not work. found they had daubed up the air inlet. a few days ago i found a big bunch of dried mud on top of the sun visor of a car that i had not driven for a while. they had apparently raised a big family in that one.

Offline Ron Wenrich

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Re: HELP !!!! Carpenter Bees are eating my house!
« Reply #8 on: June 07, 2010, 05:51:30 am »
Here's a guy that has a system and product to get rid of carpenter bees.  http://www.carpenterbeesolutions.com/

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Offline ahlkey

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Re: HELP !!!! Carpenter Bees are eating my house!
« Reply #9 on: June 07, 2010, 09:56:15 am »
I had a similar problem with Carpenter Bees for a couple of years.  I first used wasp & hornet spray to kill them and then a log & siding sealant to plug any entry holes.  Then I did a complete cleaning of the wood with a mixture of bleach, water, and soap.  I followed this by a good power washing and when everything was dry I applied a deep penetrating, oil based wood preservative stain that was toxic to flying pests from a log home supplier.   So far it has been three years and no carpenter bees.

Offline Daver

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Re: HELP !!!! Carpenter Bees are eating my house!
« Reply #10 on: June 08, 2010, 09:13:25 am »
I had this problem on an arbor I made... what I did was early in the morning I caulked the whole while he was sleeping that trapped him. put plenty of caulk in.
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Offline Ironmower

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Re: HELP !!!! Carpenter Bees are eating my house!
« Reply #11 on: June 13, 2010, 07:31:58 am »
The bees are bad enough, but wait till the woodpeckers find them. They sure make a mess of things. I don't know which is worse. I've seen them here in the spring, bore into a new piece of pressure-treated.
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Offline Daver

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Re: HELP !!!! Carpenter Bees are eating my house!
« Reply #12 on: June 13, 2010, 03:20:39 pm »
I know what you mean... I have seen exactly what you are talking about those woodpeckers hunt them bees down pecking away all wood til they get them..



The bees are bad enough, but wait till the woodpeckers find them. They sure make a mess of things. I don't know which is worse. I've seen them here in the spring, bore into a new piece of pressure-treated.
"Remember, amateurs made the ark, professionals built the Titanic."