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Woodworm treatment

Posted on 9/11/26 at 11:02 am
Posted by Oldfart102
Member since Apr 2017
19 posts
Posted on 9/11/26 at 11:02 am
I have an old railway bench that I am trying to restore. It was painted and I am in the process of sanding off the paint. I noticed woodworm holes. Some old but some that look new. I looked into treating the wood but all the products that I have found come from the UK. The shipping is really high and for some reason none of these products are available in the US. Has anyone else had to kill woodworms and if so what did you use and what was your process? The damage isn’t that bad but I want to repair it correctly and make sure not to leave any live worms before staining and sealing.
Posted by Tree_Fall
Member since Mar 2021
1397 posts
Posted on 9/11/26 at 12:04 pm to
Most "worm holes" you find in old wooden furniture are made by the grubs of powder post beetles. Just search on "powder post beetle control" and you will find some boric acid treatments here in US. These are usually water solutions and may complicate your refinishing.

Termites are a less likely cause but will come up through an infested wood floor or bare ground if the bench has been stored in a dirt-floor shed. They cause round holes mostly on the bottom of legs.

Grubs or termites, if there is an active infestation there will be frass. If so see if any fumigator in your area will bag and gas it for you.
Posted by ItzMe1972
Member since Dec 2013
12984 posts
Posted on 9/11/26 at 3:38 pm to
I kind of like the look of the holes and would not repair or fill. Hell, people pay good money to make new furniture look old.....

Not sure how much sanding you've done. Personally, I would use paint stripper and leave the wear marks.

You would probably see some saw dust if they were still active.

Staining and sealing would likely kill any that are there.
This post was edited on 9/11/26 at 3:41 pm
Posted by gumbo2176
Member since May 2018
20640 posts
Posted on 9/11/26 at 4:29 pm to
My front door on my near 100 yr. old house showed signs of woodworm issues. I first tried to treat the door with Termidor Termite Treatment then removed the door, used a heat gun to strip off the many layers of paint, sanded, used fill on the small holes, primed and painted.

It only took a couple weeks before I was seeing signs it was still compromised, so I removed the door and trashed it and replaced it with one from a salvage yard I had picked up before the damage spread to other parts of the millwork.


I wouldn't count on a stain and sealing to fix the issue.
Posted by ItzMe1972
Member since Dec 2013
12984 posts
Posted on 9/11/26 at 7:35 pm to
so I removed the door and trashed it
---
Posted by gumbo2176
Member since May 2018
20640 posts
Posted on 9/11/26 at 11:25 pm to
After a few attempts at treating the door and going as far as putting liquid pesticide in a syringe to get deep into the many holes the woodworms had eaten in the door, I decided it was a lesson in futility.

I'll not have my house being eaten up by pests while testing so-called limitations.

Maybe you should have stopped by and picked up the door from the curb and used it at your house and tried your luck at ridding them from the woodwork.

Posted by ItzMe1972
Member since Dec 2013
12984 posts
Posted on 9/12/26 at 9:45 am to
I was just saying that you did your best and said Frick It.

I would have done the same thing.
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