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Old 07-22-2014, 06:37 PM   #1
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Powder post beetle??


Just noticed this pile of sawdust in my basement. I know it is less than 7 months old because it was partially on top of some leather furniture I put there 7 months ago.

I haven't noticed any other similar piles of dust. This is by an exterior wall. The 2x lumber in the pic goes out to a deck and that particular joist is pretty rotten after it goes outside the house.

I'm pretty sure this is from powder post beetles. I'm basing this on pictures I've seen online. Supposedly they are common in the Seattle area.

It seems like a lot of dust in one area. Does this look like a bad infestation, or have I caught this early? Is this a job for a pro, or can I buy some stuff at the store and treat it myself?
How quickly will they spread?

On a side note, I had a heat pump installed a couple months ago and the humidity in the basement has dropped significantly. I've read that wood boring insects prefer high humidity.
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Old 07-22-2014, 07:59 PM   #2
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Powder post beetle??


If it's powder post beetles there will be hundreds holes the size of an ice pick, carpenter bees will make a hole about 3/8" perfectly round.
Both can be treated with a product called Bora Care.
Google it.

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Old 07-23-2014, 01:30 AM   #3
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Powder post beetle??


Thanks,
I don't see any holes at all, although it appears that they might be between the boards.

I'll look into the product you mentioned.
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Old 07-23-2014, 07:56 AM   #4
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Powder post beetle??


Looks like way to much saw dust for powder post beetles.
With that much damage I'd be contacting an exterminator and looking into getting rid of that rotten wood.
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Old 07-23-2014, 03:51 PM   #5
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Powder post beetle??


Carpenter ants.
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Old 07-23-2014, 04:28 PM   #6
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Powder post beetle??


Quote:
Originally Posted by nanuk
Carpenter ants.
That was my first thought, but I haven't seen any ants.
I'll just call a pest control place and get it sorted out. The more I read, the more it looks like I should just let a pro take care of it.

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