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wood worm

 
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Mat Roop
Senior Member


Joined: 24 Mar 2007
Posts: 911
Location: Wyoming Ontario

PostPosted: Tue Sep 12, 2017 1:43 pm    Post subject: wood worm Reply with quote

A violin of sentimental value has arrived in my shop.... most of the fix is easy, but the wood worm?
A lot of evidence is in the saddle area, some in on the edge of the bout and some in the bridge area.
Is there a good fumigation method that works?
In doing some preliminary research I find that 145 Deg F will kill it... probably risky to put the violin in an oven that hot... but maybe not?
Some comment that freezing works... not sure I like that idea due to possible splits developing
Another solution is to remove the Oxygen from the bugs.... don't know whether that will kill eggs or not. But this seems like a possible solution as Walmart sells Oxygen absorbers ..
https://www.walmart.ca/en/ip/oxygen-absorbers-pack-of-100/6000189653084
Does anyone have any suggestions.... BTW this violin is an old "lions head" violin with a stainer style body. Has minimal market value but the owner would like it set for play in honor of his grandfather.... so trying to keep the cost down.

Any suggestions would be appreciated!... Mat
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Dave Chandler
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Joined: 31 Oct 2007
Posts: 691
Location: Mt Mitchell in North Carolina

PostPosted: Tue Sep 26, 2017 11:45 pm    Post subject: Reply with quote

Have you thought about smoking them out? I can't think of any drawback but smell for a while, and got to watch the heat.
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Mat Roop
Senior Member


Joined: 24 Mar 2007
Posts: 911
Location: Wyoming Ontario

PostPosted: Fri Sep 29, 2017 9:38 pm    Post subject: Reply with quote

Hi Dave here are 2 good articles I found... my real concern was to be sure to kill any eggs that might still be there.
http://www.fomrhi.org/vanilla/fomrhi/uploads/bulletins/Fomrhi-130/Comm%202024.pdf
http://www.giordanoviolins.com/en/war-worms-0
I am going to try the oxygen deprivation method with the 2000cc oxygen absorbers and mylar sealing bags from here...
https://72hours.ca/collections/oxygen-absorbers.
The goods came in today and I sealed the bags with a regular iron on low... worked real good... now to wait for a month!
Cheers... Mat
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John Cadd
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Joined: 23 Jul 2009
Posts: 819
Location: Hoylake

PostPosted: Fri Oct 29, 2021 7:57 am    Post subject: woodworm Reply with quote

Glue together some pieces of wood , then freeze them. See if any splits occur .Wood is unlikely to react to freezing as it grows in cold countries .If the glue splits that`s not a problem .
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Mike Shuman
Junior Member


Joined: 17 Nov 2021
Posts: 16
Location: Denver

PostPosted: Wed Nov 24, 2021 1:55 am    Post subject: Re: wood worm Reply with quote

Mat Roop wrote:
A violin of sentimental value has arrived in my shop.... most of the fix is easy, but the wood worm?
A lot of evidence is in the saddle area, some in on the edge of the bout and some in the bridge area.
Is there a good fumigation method that works?
In doing some preliminary research I find that 145 Deg F will kill it... probably risky to put the violin in an oven that hot... but maybe not?
Some comment that freezing works... not sure I like that idea due to possible splits developing
Another solution is to remove the Oxygen from the bugs.... don't know whether that will kill eggs or not. But this seems like a possible solution as Walmart sells Oxygen absorbers ..
https://www.walmart.ca/en/ip/oxygen-absorbers-pack-of-100/6000189653084
Does anyone have any suggestions.... BTW this violin is an old "lions head" violin with a stainer style body. Has minimal market value but the owner would like it set for play in honor of his grandfather.... so trying to keep the cost down.

Any suggestions would be appreciated!... Mat


I'm sorry if I'm late, but I think a have decision. Why don't you just to heat-treat those parts of your violin?
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John Cadd
Super Member


Joined: 23 Jul 2009
Posts: 819
Location: Hoylake

PostPosted: Wed Nov 24, 2021 8:07 am    Post subject: woodworm Reply with quote

If Grandad is really old just ignore the woodworm and fix anything else. It might last long enough for him to hear it .Or he might last long enough to hear it .It would be a shame to spend months on a repair only to have it played at his funeral . Is that too harsh ? Maybe it`s a narrow window .Better for him to die happy . I bought some violin varnish once .After careful application I realised it was never going to dry. I phoned up the supplier to tell them and they apologised and said the maker had just died . That might be the best get out of jail card ever .
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Oleg Vostyakov
Member


Joined: 13 Sep 2021
Posts: 25

PostPosted: Wed Dec 01, 2021 3:43 am    Post subject: Re: wood worm Reply with quote

Mat Roop wrote:
A violin of sentimental value has arrived in my shop.... most of the fix is easy, but the wood worm?
A lot of evidence is in the saddle area, some in on the edge of the bout and some in the bridge area.
Is there a good fumigation method that works?
In doing some preliminary research I find that 145 Deg F will kill it... probably risky to put the violin in an oven that hot... but maybe not?
Some comment that freezing works... not sure I like that idea due to possible splits developing
Another solution is to remove the Oxygen from the bugs.... don't know whether that will kill eggs or not. But this seems like a possible solution as Walmart sells Oxygen absorbers ..
https://www.walmart.ca/en/ip/oxygen-absorbers-pack-of-100/6000189653084
Does anyone have any suggestions.... BTW this violin is an old "lions head" violin with a stainer style body. Has minimal market value but the owner would like it set for play in honor of his grandfather.... so trying to keep the cost down.

Any suggestions would be appreciated!... Mat


F***ing worms! I never thought there some much damages from them!!!!
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