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Powder post beetles? (Read 265 times)
 
Lark Leazar
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Powder post beetles?
May 5th, 2017 at 8:27am
 
Just checked some donated wood and found holes in them with small piles of powder below.  The wood is of unknown type, but maybe cedar or cherry. 

While the holes will likely make for an interesting final turned object, I am concerned about infestation.  My shop is in my attached garage.  I immediately moved the blanks our into the driveway while I look at my options. 

They were stored in a cabinet with other blanks.  I'm going to clean up all the powder and continue to monitor the rest. 

Any other advice?  My primary concern is that I do not have a problem with the lumber in my home as a result.  Losing these blanks isn't the end of the world. 

Thanks in advance
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Ed Weber
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Re: Powder post beetles?
Reply #1 - May 5th, 2017 at 8:42am
 
I know it's not feasible in may situations but freezing will kill them.
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Glenn Jacobs
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Re: Powder post beetles?
Reply #2 - May 5th, 2017 at 11:45am
 
How about a plastic bag and DNA for the blanks? This weekend should be warm enough to evaporate the DNA.

Glenn J. (North Texas)
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Ralph Fahringer
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Re: Powder post beetles?
Reply #3 - May 5th, 2017 at 2:05pm
 
Whenever I get a piece in the frame shop with those holes , i squirt some unseal into the holes.
It has Benzene and Toulene in it and I figure nothing can live in that.  (except for people from NJ)

Alcohol should do it as well.

Check for the type of wood powder. A powderpost beetle is really small and the powder is very fine, where a larger bug is some sort of carpenter ant that leaves a much larger hole and will make a bee line for the wood in your building. I had some that came in a block of wood from eBay and i opened the box and they ran out and right to the corner of my shop and into the wall. They produced a much bigger pile of sawdust.

I bought a quite lethal brew of chemicals and spray the he** out of every corner and crack in the shop and then around the whole perimeter outside and aparently it worked as no more sawdust except for what i make and the building is still standing. Thumbs Up


...but, yeah, freezing works, too.
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Tom Coghill
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Re: Powder post beetles?
Reply #4 - May 5th, 2017 at 3:06pm
 
Since you are in Texas, I would suggest you take the infested blanks and put them in black plastic bags (like lawn bags), seal them closed and put them where the sun will bake them.  The heat should drive the little creatures out.  You may want to spray some kind of bug killer on the wood before putting them in the plastic bags.

I am not directly familiar with what you have there, but it seems like this would do it. Huh
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Ken Vaughan
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Re: Powder post beetles?
Reply #5 - May 5th, 2017 at 3:10pm
 

Worth reading up on the family of different critters that go by the common name of powder post beetles. 

Concern about your dwelling is appropriate, especially if you have locations where the  moisture in the wood is higher.  One reference cited 13 percent as attractive. 

Heat or cold can kill them and borates are the insecticides registered.   I noted in the discussion, that any finish will stop the beedles from laying eggs successfully, but the exposed wood at the holes will allow reinfestation.

Glad we do no have those critters in the North (yet).

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Tom Coghill
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Re: Powder post beetles?
Reply #6 - May 5th, 2017 at 3:33pm
 
Right Ken - except that little spruce beetle (about the size of a grain of white rice) ....   but I don't know if anyone really turns wood that soft.
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David Moeller
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Re: Powder post beetles?
Reply #7 - May 5th, 2017 at 4:10pm
 
How interesting is it? Is it worth risking infestation for a common domestic wood.  Microwave small pieces and burn pile the rest.
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