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Hello to all, First post
No need for all these "cides"
Silverfish: They preferred food is Natural Wool fibre Give these unwanted 
guest's
some, put some of it in your drawers, shelves wherever you are storing 
collections,
they will go to that before they go to the labels sleeves or covers.
A good material is Felt. Fold the felt over a few times, they will crawl 
inside the folds and stay
there, if and when they get in anywhere you don't want them to be
You can dispose them (felt included) out in intervals so as to keep the 
population down
Their life cycle is as an average 30-90 days, weather, moisture and 
temperature,
dependant, there is a need to monitor initially for their cycle in your 
location if there is a large number of them scattering around when you 
disturb them
Old (or new) woollen socks are good as well
When receiving material in boxes from unknown sources cover them with a felt 
blanket folded over a couple of times and leave them covered for a few days 
They will come out for a "Feed" You can than dispose of them somewhere safe
(Hunger it's a bad thing)
Your local billiard saloon will tell you of suppliers or off cuts from
replacements of billiard table felt Hobby stores also carry it
Cockroaches: Cedar wood balls, they can be bought at organic stores, or
feel good stores, new age, Incense suppliers etc, cheap and effective
Camphor wood: balls or chips effective for both, simply place them in a
couple of old socks Silverfish and roaches wont go near them, if they do
they will not stay there for long For some reason it is not their favourite
smell or whatever
A combination of all of the above does the trick
This is not quite killing them "in situ" However it keeps them away from 
things you don't want them to go near
If you do want to kill them Diatomaceous earth spread around the suspected 
entry points will certainly do away with them it is easily obtainable from 
fertiliser suppliers specialising in organic inputs to farms, they would 
most likely have it
None of the above have any adverse effect on records book etc
Try it It works quite well and you do not have to deal with "cides"
C.Moss

----- Original Message ----- 
From: "Marie O'Connell" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Friday, May 22, 2009 2:16 PM
Subject: Re: [ARSCLIST] Pest Control


> Thanks George. We're fairly sure that silverfish entering the collection
> have not been attracted by humidity as we have had consistent humidity and
> temperature control for many years.
>
> We are setting up a quarantine area and procedure to eliminate pests
> entering with new accessions. However,  it appears that some have already
> setup house in the archive.
>
> Given the choice between silverfish and archives we think the silverfish
> will find plenty of food elsewhere. Due to the lack of evidence of a large
> population (less that 6 sightings in 10 years) we won't be rushing to 
> apply
> anything until we have done more research and setup more preventative
> measures.
>
> We will follow up on your comment re: Piperonyl Butoxide and Naptha, and
> explore alternative means of application.
>
> Marie
>
> On Fri, May 22, 2009 at 11:06 AM, George Brock-Nannestad 
> <[log in to unmask]>wrote:
>
>> From: Patent Tactics, George Brock-Nannestad
>>
>> Dear Marie (O'Connell),
>>
>> > *What experience do people have with pest control with particular 
>> > regard
>> > to
>> > audio collections and silverfish?*
>>
>> ----- my experience is that silverfish require humidity--your storage 
>> area
>> may be too humid or drawing humidity by capillary action. They digest
>> starch,
>> and I know from experience that they may eat parts of labels on 78s, 
>> giving
>> them a unique relief, because the printing has protected the paper. 
>> Glossy
>> paper sized with plenty of starch becomes very rough.
>>
>> Permethrin is an artificial pyrethrum, and it is very effective. It is
>> usuallly available in powder form and in an acqueous solution. I do not
>> like
>> the look of your gas, because it has the quite unnecessary ingredient
>> piperonyl butoxide that has probably been added to increase the useful
>> life.
>> But it requires a solvent, hence the huge amount of naphta. Permethrin 
>> does
>> break down by oxidation and in light, and the treatment may need being
>> redone, if the humidity problem has not been solved. However, only real
>> fish,
>> crabs, shrimp--and insects are harmed by it.
>>
>> Many years ago I asked our pest control authority about silverfish, and
>> they
>> said that they were among the oldest organisms on Earth, and that it 
>> would
>> really be a pity to eradicate them. So, it is your moral choice: to
>> preserve
>> silverfish (give them the right humidity) or audio.
>>
>> Kind regards,
>>
>>
>> George
>>
>> >
>> > **
>> >
>> > *At this stage we think that the population is relatively small, but 
>> > are
>> > looking into ways to prevent its further spread and cautiously
>> considering
>> > some sort of treatment or fumigation. Our main concern is that any
>> > chemical
>> > treatment be safe for all media types and safe for staff.*
>> >
>> > **
>> >
>> > *Generally speaking, what treatments and information have you found
>> > useful?*
>> >
>> > *We have discussed an insecticide called PERMIGAS, Does any one know
>> about
>> > this?*
>> >
>> > **
>> > *PERMIGAS Ingredient Formula Conc. CAS No.*
>> > *CARBON DIOXIDE CO2 90% 124-38-9*
>> > *SOLVENT NAPHTHA, LIGHT ALIPHATIC 9% 64742-89-7*
>> > *PIPERONYL BUTOXIDE C19-H30-O5 0.5% 51-03-6*
>> > *PYRETHRIN II 0.1% 121-29-9*
>> > *PERMETHRIN C21-H20-Cl2-O3 0.4% 52645-53-1*
>> > **
>> > *Thanks in advance.*
>> > **
>> > *Marie*
>>
>