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Author Topic: Woodworm discovered - apply cuprinol to holes ..then what?  (Read 3403 times)

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Peadar

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Woodworm discovered - apply cuprinol to holes ..then what?
« on: February 05, 2019, 08:29:10 PM »

Antoria 3 stop  A (HMH) - Made in Saxony -Ebonised wood/buckram finish- treble reeds of brass on individual plates.
I aquired this box about four weeks ago and checked it carefully for woodworm on arrival. It gets picked up and played briefly every couple of days- this afternoon I noticed a couple of worm holes in a corner of the base handle. Odd that I hadn't noticed before unless they are new.
painted over the holes with cuprinol wood preservative. Discovered a few more. Same treatment. took the bass chest off the bellows frame (held by two screws). Painted the inside with Cuprinol-no wormholes in sight except possibly one inside the airvalve chamber- daubed cuprinol in that direction.

Advice on how best to deal with an issue like this.....should I next go into the treble end and treat the insides there with cuprinol or is it emergency surgery at the bass end?

Pencil mark the bass reed block positions and then what?

I know that I am going to have to take the reed blocks out at some point to get at the valves and revalve the whole shooting match- I had just hoped not to have to do it quite yet. (Especially as I have to go away tomorrow morning and won't be back till after playgroup).






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Lester

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Re: Woodworm discovered - apply cuprinol to holes ..then what?
« Reply #1 on: February 05, 2019, 08:53:55 PM »

Fill the holes with bicarbonate of soda then add thin runny superglue.

John MacKenzie (Cugiok)

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Re: Woodworm discovered - apply cuprinol to holes ..then what?
« Reply #2 on: February 05, 2019, 09:10:20 PM »

No rush, once there's a hole, there's no worm. Probably long gone.

SJ
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Theo

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Re: Woodworm discovered - apply cuprinol to holes ..then what?
« Reply #3 on: February 05, 2019, 09:11:20 PM »

And use a preservative designed to kill woodworm.
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Theo Gibb - Gateshead UK

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Peadar

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Re: Woodworm discovered - apply cuprinol to holes ..then what?
« Reply #4 on: February 05, 2019, 10:08:54 PM »

Thanks Gents.

Lester: Checked the kitchen- Bi-carbonate of soada - Yes. But the "good" cyano-acrylite in the drawer turned out to be solidified loctite.
I will get some cyano-acrylite on my way south (Is that the superglue you had in mind?)

Sir J: Calming influence...just hope that the holes were in the thing before Í got it then.

Theo: Thankfully woodworm is one of the targets listed on the cuprinol product's tin.

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Nick Collis Bird

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Re: Woodworm discovered - apply cuprinol to holes ..then what?
« Reply #5 on: February 06, 2019, 07:27:02 AM »

Woodworm is the same as bookworm it’s not actually a worm but a maggot. The same animal as the clothes moth. They lay their eggs which hatch into larva then eat their way out to turn into moths. It’s the hide glue they’re after. Nasty little blighters!
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Lester

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Re: Woodworm discovered - apply cuprinol to holes ..then what?
« Reply #6 on: February 06, 2019, 08:33:35 AM »

It’s the hide glue they’re after. Nasty little blighters!


Good reason to use PVA and superglue then  >:E

Prestidigitator

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Re: Woodworm discovered - apply cuprinol to holes ..then what?
« Reply #7 on: February 06, 2019, 08:41:21 AM »

And use a preservative designed to kill woodworm.
I use Rentokil Woodworm treatment on woodworm in movable objects like melodeons. I still have the squeeze-bottle with the metal tube and tip that they provided to inject the fluid into the hole(s), whereupon it shoots out somewhere else, but I'm not sure if they still supply them. A hypo would also do the job.

The newer treatments are, I believe, less toxic (to humans) and smelly than the older versions, but it takes some time, and airing, to let the odour dissipate. To me, it's never as bad or long-lasting as the British Rail Second Class Smoking Carriage stink that comes out of some boxes.
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Theo

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Re: Woodworm discovered - apply cuprinol to holes ..then what?
« Reply #8 on: February 06, 2019, 08:45:09 AM »

Some facts need checking here. 
The “woodworm” is indeed a larva of the common furniture beetle. It lives on wood.  It’s found in many timbers that have no glue in them of any kind. There are other woodboring insects too and I think with all of them it’s the larval stage that consumes wood.

“Bookworm” is not a single species but a general term for insects that bore into paper and leather.  These can include the common furniture and various other beetles and moth larvae.
See more on Wikipedia
Woodworm: https://en.m.wikipedia.org/wiki/Common_furniture_beetle
Bookworm https://en.m.wikipedia.org/wiki/Bookworm_(insect)

So there is no case for saying that using modern synthetic adhesives make insect attac less likely.

“Woodworm” larvae can be killed by freezing,  so wrap the affected melodeon in plastic and put it in the freezer for a week.
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Theo Gibb - Gateshead UK

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Howard Jones

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Re: Woodworm discovered - apply cuprinol to holes ..then what?
« Reply #9 on: February 06, 2019, 09:45:16 AM »

I would also be concerned that you may have introduced woodworm into your house. Keep an eye open for any evidence appearing in your furniture or building fabric.

Steve_freereeder

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Re: Woodworm discovered - apply cuprinol to holes ..then what?
« Reply #10 on: February 06, 2019, 10:35:36 AM »

“Woodworm” larvae can be killed by freezing,  so wrap the affected melodeon in plastic and put it in the freezer for a week.
Have you actually done this, Theo? I would be worried in case the -18C temperature of the freezer had an adverse effect on the wax or other components.

I've only ever had one case of woodworm in a melodeon and I successfully treated it with Rentokill woodworm fluid.
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Theo

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Re: Woodworm discovered - apply cuprinol to holes ..then what?
« Reply #11 on: February 06, 2019, 11:01:09 AM »

Yes but any box I’ve used the freezing treatment on needed new wax anyway.
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Theo Gibb - Gateshead UK

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Steve_freereeder

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Re: Woodworm discovered - apply cuprinol to holes ..then what?
« Reply #12 on: February 06, 2019, 12:35:13 PM »

Yes but any box I’ve used the freezing treatment on needed new wax anyway.
Thanks! Makes sense about the new wax needed.
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Pearse Rossa

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Re: Woodworm discovered - apply cuprinol to holes ..then what?
« Reply #13 on: February 08, 2019, 01:47:09 AM »

(Especially as I have to go away tomorrow morning and won't be back till after playgroup).

Tá súil agam nach carnán smúdar a bheas déanta go do bhosca nuair a thiocfaidh tú abhaile!
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Peadar

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Re: Woodworm discovered - apply cuprinol to holes ..then what?
« Reply #14 on: February 17, 2019, 12:39:53 AM »

Quote
Tá súil agam nach carnán smúdar a bheas déanta go do bhosca nuair a thiocfaidh tú abhaile!

Go raibh mille maith agat! Tá suil agam nach carnán smúdar a bheas deanta go seann shabhal Bretfortoin a roimhe Playgroup 2020!
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Re: Woodworm discovered - apply cuprinol to holes ..then what?
« Reply #15 on: February 17, 2019, 11:47:27 PM »

Had a 60 yr old Italian piano accordion that had active wood worms in it. Too big to fit in the freezer so I put it in a thick trash bag and put dry ice in with it, and put it in a cardboard box(insulation) the cold and CO2 did them in.
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Peadar

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Re: Woodworm discovered - apply cuprinol to holes ..then what?
« Reply #16 on: February 18, 2019, 10:26:23 PM »

Well,

That's one of the hypo needles that isn't going back into the sheep's medical chest.

All visible holes injected- every one of them in the bass handle., filled with sodium bi-carbonate and glued with cyano-acrylate.

I haven't gone for the reed block removal & revalving yet....I now have a sneaking suspicion that the last bush mechanic re-seated the base reed blocks on a bed of PVA.
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Stockaryd

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Re: Woodworm discovered - apply cuprinol to holes ..then what?
« Reply #17 on: February 22, 2019, 04:54:11 PM »



I see that the thread about the woodworm is still going on.

This applies to Scandinavian woodworm:

Woodworms eat wood hence the name.
Not glue. Not any glue at all.

Store the box in the home (house or apartment)
Indoor heating and drought kill woodworm. No chemicals or toxins needed.

If there are a lot of holes you can fill them with anything, any glue you want and then paint over.


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Pearse Rossa

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Re: Woodworm discovered - apply cuprinol to holes ..then what?
« Reply #18 on: February 22, 2024, 09:33:35 PM »

“Woodworm” larvae can be killed by freezing,  so wrap the affected melodeon in plastic and put it in the freezer for a week.

Do I understand correctly that freezing sorts the problem without having to resort to chemical
treatment?

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mChavez

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Re: Woodworm discovered - apply cuprinol to holes ..then what?
« Reply #19 on: February 22, 2024, 11:17:00 PM »

It should kill the live grubs, but there's no guarantee. I froze a chunk of highly figured maple in the past in -18 for a week or two, just to decapitate a poor wee worm (that was still alive before the altercation with the bandsaw) with my bandsaw blade when resawing the blank.
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