I would ask them about a systemic drench product if spraying has failed and 
insist on proper inspection prior to them bringing in any new plant materials 
in the future. good luck. JTV


Joel Voron   Colonial Williamsburg Foundation
  Conservation Dept.
     Integrated Pest Management Specialist
      Office 757-220-7080
        Cell 757-634-1175
          E-Mail jvo...@cwf.org





________________________________________
From: pestlist@googlegroups.com <pestlist@googlegroups.com> on behalf of Joanna 
Baker <collectionmana...@kreegermuseum.org>
Sent: Wednesday, September 22, 2021 10:03 AM
To: pestlist@googlegroups.com
Subject: Re: [PestList] Beneficial insects near artwork

[CAUTION: This message originated from outside the Foundation. Do not click 
links, open attachments or take action unless you know the contents are safe]
Hi Joel,

Thank you for the advice. This treatment has been done weekly for several weeks 
now.  It has not made an improvement in our situation and the plant company 
wants to try something else.

Best,
Joanna Baker
Registrar and Collection Manager
The Kreeger Museum
2401 Foxhall Road, NW
Washington, DC 20007
410-271-8949


On Wed, Sep 22, 2021 at 9:55 AM Voron, Joel 
<jvo...@cwf.org<mailto:jvo...@cwf.org>> wrote:
1/4 cup of murphy's oil soap to 1 gallon of cool water in a garden sprayer. 
spray undersides of leaves as well as they hide and lay eggs there. Make sure 
this is not done in full sunlight. Spray the top of soil lightly.  spray to 
almost point of run off. JTV


Joel Voron   Colonial Williamsburg Foundation
  Conservation Dept.
     Integrated Pest Management Specialist
      Office 757-220-7080
        Cell 757-634-1175
          E-Mail jvo...@cwf.org





________________________________________
From: pestlist@googlegroups.com<mailto:pestlist@googlegroups.com> 
<pestlist@googlegroups.com<mailto:pestlist@googlegroups.com>> on behalf of 
collectionmanager 
<collectionmana...@kreegermuseum.org<mailto:collectionmana...@kreegermuseum.org>>
Sent: Wednesday, September 22, 2021 9:52 AM
To: MuseumPests
Subject: [PestList] Beneficial insects near artwork

[CAUTION: This message originated from outside the Foundation. Do not click 
links, open attachments or take action unless you know the contents are safe]
Hello,

My art museum has an enclosed atrium with tropical plants in the center of the 
galleries. Unfortunately, during the last replanting, it became infested with 
mites.  Several fairly benign methods have been employed to get rid of them by 
our plant care company, to no avail.  They want to use beneficial insects that 
eat the mites, specifically Amblysaius andersori.

Does anyone have experience with beneficials in museums?  Is there any 
possibility of damage to artwork (paintings, sculpture and works on paper) if 
these insects were to somehow get out into the galleries?

Any advice would be highly appreciated!

Best,
Joanna Baker
Collection Manager and Registrar
The Kreeger Museum

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