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I'm building a "live edge" shelf/table, and after I removed the bark, there are several exposed woodworm burrows right under the bark. They are quite deep (3-6mm), so I don't want remove all that wood.

I'm not sure what's the best way to deal with that: leave it as-is, or fill with something (with what?) and sand flush?.

The finish will be a stain + oil/varnish.

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    Are you certain they are gone? What kind of wood is it? (May help ID the pest). Possibly related post: woodworking.stackexchange.com/questions/821/…
    – Ashlar
    Commented Feb 10, 2017 at 3:40
  • It's (supposedly) kiln-dried walnut, I don't think any larvae insect could survive being kiln-dried. Also, the exposed burrows seem to be without any "surprises".
    – haimg
    Commented Feb 10, 2017 at 3:57
  • Related, maybe someone can recommend something woodworking.stackexchange.com/q/7585/5393
    – sorin
    Commented Jul 29, 2018 at 20:26

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You can leave them for character or fill them as you prefer, it's entirely up to you.

If you want to fill I'd suggest filled/tinted epoxy as it's cheap and easy to do and can be customised to suit. See Large hole filler products, what is available for more info.

Note if you have the least worries about the insects still being active then you should treat the wood with a proprietary insecticide made for this purpose.

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  • Thanks for the answer! The answer you linked is also awesome, but I'm not sure if epoxy+sawdust would be stainable... Or how the oil/varnish will look over it. Guess I'll have to experiment with some off-cuts first.
    – haimg
    Commented Feb 10, 2017 at 13:34

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