On that same line of thought Pat brought up, booklice are also pests of insect 
collections and will consume pinned specimens, so not restricted to molds and 
fungi.  I worked on a case where the cleaning media in coffee grinders was 
infested by booklice. The media is corn-based.  Very dry, no mold or fungi.


Louis N. Sorkin, B.C.E.

Entomologist, Arachnologist

Division of Invertebrate Zoology

American Museum of Natural History

Central Park West at 79th Street

New York, New York 10024-5192

sor...@amnh.org<mailto:sor...@amnh.org>

212-769-5613 voice

212-769-5277 fax



The New York Entomological Society, Inc.

www.nyentsoc.org<http://www.nyentsoc.org/>

n...@amnh.org<mailto:n...@amnh.org>

________________________________
From: pestlist@museumpests.net [pestlist@museumpests.net]
Sent: Wednesday, November 12, 2014 3:51 PM
To: pestlist@museumpests.net
Subject: RE: [pestlist] RE: Booklice - Pest List Digest Mode


Hilary,
Although it has thought for many years that psocids feed solely on microscopic 
molds, recent research out of Oklahoma State University suggests otherwise. 
Their research focused on psocids in grain storage facilities. They found that 
the psocids are actually feeding on the germ of the grain itself rather than 
only molds. They are likely able to feed on a wide variety of materials.

Pat Kelley
Insects Limited, Inc.

From: pestlist@museumpests.net [mailto:pestlist@museumpests.net]
Sent: Wednesday, November 12, 2014 3:40 PM
To: pestlist@museumpests.net
Subject: Re: [pestlist] RE: Booklice - Pest List Digest Mode


Please correct me if this is incorrect, but I seem to recall being told a very 
long time ago that "book lice" appear when feeding on mold invisible to the 
naked eye.  Yes, a reliable indicator of high RH, but I'm just curious to 
corroborate whether or not the "feeding on mold" part of the explanation is 
accurate.  Many thanks, Hilary

On Wed, Nov 12, 2014 at 12:05 PM, 
<pestlist@museumpests.net<mailto:pestlist@museumpests.net>> wrote:

Nicely put Carolyn,

Megan, as mentioned below psocids (aka. book lice) are an indicator of problems 
with relative humidity - not that you would want a huge infestation. As Carolyn 
mentions, they can lead you to the  localized problem.  Improved management of 
RH and improving housekeeping is the best way to control the situation.  That 
is how I have dealt with it in the past.

Gretchen Anderson
Conservator
Carnegie Museum of Natural History

-----Original Message-----
From: pestlist@museumpests.net<mailto:pestlist@museumpests.net> 
[mailto:pestlist@museumpests.net<mailto:pestlist@museumpests.net>]
Sent: Wednesday, November 12, 2014 10:43 AM
To: pestlist@museumpests.net<mailto:pestlist@museumpests.net>
Cc: Luci Cipera
Subject: [pestlist] Booklice - Pest List Digest Mode


Hi Megan

My practical experience agrees with Richards email.

We occasionally get outbreaks of booklice that seem to grow quickly and then 
disappear in our Archives storage.

Consultation with CCI has convinced us not worry about these as a risk of major 
damage, because the mouth parts of the booklice are so small it would take a 
major prolonged infestation to cause damage. For that reason we have rebranded 
them as "Psocids" not book lice, just to keep them it in perspective.

However, they are a real indicator of RH issues that could lead to more 
significant pest damage from silverfish or springtails.
In our case we simply could not figure out how we would have a pest that was an 
indicator of high RH in a storage vault with good RH control 35% plus/minus 5% 
winter, 45% plus/minus 5% summer.  We then started looking for sources of 
"localized high RH" and sure enough with that perspective we found it (a 
plastic tube, designed to carry overflow water from a drip pan under an 
localized HVAC unit carries overflow water into a bucket "inside" the storage 
room e.g. occasional wet damp bucket breeds booklice). With this knowledge we 
are trying to get the wet damp bucket to be located outside the storage room.

Hope this helps

Carolyn Leckie


-----Original Message-----
From: pestlist@museumpests.net<mailto:pestlist@museumpests.net> 
[mailto:pestlist@museumpests.net<mailto:pestlist@museumpests.net>]
Sent: November-11-14 7:35 PM
To: pestlist@museumpests.net<mailto:pestlist@museumpests.net>
Subject: Pest List Digest Mode

PestList Digest


From: Richard Pollack <r...@identify.us.com<mailto:r...@identify.us.com>>
Date: Thu, 6 Nov 2014 10:42:16 -0500
Subject: Re: [pestlist] Book Lice

Megan,
Book lice should be expected in and around any museum, library, office or home. 
A few in a library setting shouldn't necessarily cause alarm, but it would be 
wise to continue monitoring the archived materials as well as the general 
environment. If you see book lice more than occasionally in the archived 
materials, then consider trying to reduce the overall humidity in the facility. 
That is usually the most practical and acceptable means to maintain the 
population of book lice at or below an acceptable threshold level. I realize 
this can be challenging in Bremerton, but it is possible.Good luck.
-Rich

Richard Pollack, PhD.
CEO & Chief Scientific Officer
IdentifyUS, LLC
320 Needham Street
Suite 200
Newton, MA 02464-1593
------------------
617.600.6360  (W)
617.513.9266  (M)




HARVARD UNIVERSITY
Environmental Health, Safety and Emergency Management (EHSEM) Senior 
Environmental Public Health Officer
46 Blackstone St., South
Cambridge, MA 02139
Office: 617-495-2995  Cell: 617-447-0763 
www.ehs.harvard.edu<http://cp.mcafee.com/d/avndz8A83gwrhohvujouppdTdEThovpphhjdEThovpph7c6QrEIfIIEEICQrEIfzHITsdHslYY_OMaB2DSDg-iIF-xOVKkavqt3VaODW7bC_8fSpsovW_9IEIffFZuVt5NVDChPwVMsDORQr8FGTuhVkffGhBrwqrhdL6XCXCM0nAWsjS9DoEtW3pJrWjfBipswWWUWMwCVGbz5Qk3hPXVEVd7dzhOWUzqW2bH8alrFXqGTQDjwqrhuKMedwLQzh0qmRLFc-l9CBQQg0Iqid40PmFk-lLd41sQg1rWjd40lBipEw3F4vFcQg3tkfdLECR7JcFYQf>
 richard_poll...@harvard.edu<mailto:richard_poll...@harvard.edu>


On Nov 5, 2014, at 10:30, 
pestlist@museumpests.net<mailto:pestlist@museumpests.net> wrote:

>
> Hello everyone!
>
> I am wondering if anyone has experience dealing with Book Lice. We have been 
> finding them in our traps, but we have not been able to find out where they 
> are coming from or what they are feeding on. The area we found them in has a 
> number of large map cases and file drawers, but I could not find any traces 
> of them inside the actual cabinets. Aside from setting more traps throughout 
> the area and placing silica gel inside certain cabinets(to bring down the 
> relative humidity), I have no idea what to do.
>
> Any help at all would be much appreciated!
>
> Thank you,
>
> Megan Jablonski
> Collections Manager
> Puget Sound Navy Museum
> Naval History & Heritage Command
> 251 1st Street
> Bremerton, WA 98337
> p. (360) 627-2272<tel:%28360%29%20627-2272>
> f. (360) 627-2273<tel:%28360%29%20627-2273>
>
> www.PugetSoundNavyMuseum.org<http://cp.mcafee.com/d/avndxMO76Qm4nTAS7CmjtPqdQm7SmkkkPqdQm7SmkhP1J6Wb3Xbaab9J6Wb3UWXdT3qT5vffYI2FgFZFQfAHavEsKrB2DSDg-iIF-xOVLO3ZCn67-LOrab3PWvnKnhsupVAsUes79YJt6OaqJTAul3PWApmU6CQPrNKVKVI045COfP6aJMg1CCiMSTjSRu00CRLFc-l9BO3HHzH22rCEKcnhgd7fLCzAQsSd7bHydHE8KIwFlKDJGHvite1FJ5WX0US2_id41Frm-APVkCqnjh02NF8Qg3dqBjVmYQg5Ph05LFcQg1ml9Cy0eAh-APh0dRgYS-yru1Rl>
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