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Reply by ColonelTravis

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Posted on Small holes in walnut -any concern?

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ColonelTravis

1976 posts in 2431 days


#1 posted 01-02-2018 08:02 PM

The only way you can tell (unless maybe you x-ray it or whatnot), is when it’s too late! One day you see a small pile of powder/dust underneath a hole that wasn’t there the day before. The ones I deal with, it can take 1-2 years for a bug to finally emerge.

The holes I see in my boards are larger than yours there. It’s common in mesquite, and with that wood I got sick of trying to treat it and just started cutting off all sapwood and anything near a hole. Ended all worry for me.

Your lid doesn’t look too thick so if anything had bored in there, I’m guessing you would have been able to see it when sizing it down? Again, just a guess. But the larvae can tunnel a few inches, and I’ve found many a tunnel when resizing that I didn’t know was there until after I started cutting.

I have put small boards in an oven at the lowest setting (170-80 degrees) for a couple hours and never seen a bored hole afterward. Since I’m not an expert, I’ve checked online about this with various extension people and I’ve read that you need a minimum internal temp. of the wood at least 120-130 degrees for 2-6 hours. It depends on the board you’ve got. For example, you wouldn’t have to heat treat a small box lid for 6 hours.

But since you’ve got a finished box, I’m not sure what to say. Don’t know if the low oven heat would damage the finish. If it would, you could always do the really annoying thing and rough out another lid then bake it before finishing for peace of mind.


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