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Group - Studies have shown a timber damaged by either powder post beetles or Old House Borers loses only 15% of its structural strength. The reason is the galleries are tightly packed with powdered frass. The larvae are not removing the wood, as do termites. Tom Parker -----Original Message----- From: Alex Roach <alro...@heritagepestmanagement.com> To: pestlist <pestlist@museumpests.net> Sent: Fri, Feb 10, 2012 5:59 pm Subject: Re: [pestlist] question about extent of application of Bora-Care This is a message from the Museumpests List. To post to this list send it as an email to pestlist@museumpests.net To unsubscribe please look at the footer of this email. ----------------------------------------------------------- Hi I would apply the spray to susceptible timber throughout the area where the borer was active, mainly because their long life cycle within the timber (i.e. from when the larvae first emerge from the egg until when the adult emerges from an exit hole) means that extensive damage can occur. Sound timber now may not be in 3-4 years time. Best wishes, Alex Alex Roach Heritage Pest Management On 10/02/2012, at 8:37 AM, "Rick Kerschner" <rkersch...@shelburnemuseum.org> wrote: This is a message from the Museumpests List. To post to this list send it as an email to pestlist@museumpests.net To unsubscribe please look at the footer of this email. ----------------------------------------------------------- Is the infestation widespread, i.e. frass-filled exit holes throughout the structure? We have been quite successful in controlling powder post beetles by applying Bora-Care only to the infested areas as identified by holes with frass in them and trails of frass extending from the holes, areas such as the sill of the building or the base of columns where the wood has a higher moisture content and is more inviting. In Vermont, we find that such infestations travel very slowly, perhaps because they have been held in check by our cold winters. It would be prohibitively expensive to treat all or even many of the structural elements of the building as a preventive measure when there was evidence of active infestation in only limited portions of the structure.You can always apply Bora-Care in the future to additional areas if you detect a spreading infestation. Rick Richard L. Kerschner Director of Preservation and Conservation Shelburne Museum PO Box 10, Route 7 Shelburne, VT 05482 (802) 985-3348 x3361 rkersch...@shelburnemuseum.org From: ad...@museumpests.net [mailto:ad...@museumpests.net] On Behalf Of Mullen, Kathleen D - WHS Sent: Thursday, February 09, 2012 3:30 PM To: 'pestlist@museumpests.net' Subject: [pestlist] question about extent of application of Bora-Care This is a message from the Museumpests List. To post to this list send it as an email to pestlist@museumpests.net To unsubscribe please look at the footer of this email. ----------------------------------------------------------- We are in the process of designing treatment for an infestation of wood borers in a large historic storage structure. We’re satisfied with all aspects of the proposed treatment (Bora-Care application) – however, the pest management company has proposed a widespread application, and we’re wondering if the application of Bora Care should be confined to just the area in which exit holes can currently be seen, or should it extend beyond that? Katie Mullen Preservation Coordinator, Library-Archives Wisconsin Historical Society 816 State Street Madison, WI 53706-1482 PH: 608-264-6489 cell: 608-575-8944 kathleen.mul...@wisconsinhistory.org Collecting, Preserving and Sharing Stories Since 1846 ---------------------------------------------------------------------- To send an email to the list, send your msg to pestlist@museumpests.Net To unsubscribe from this list send an email to pestlist@museumpests.net and in the subject put: "unsubscribe" - no quotes please. You are receiving the Pestlist emails in standard mode. To change to the DIGEST mode send an email to imail...@museumpests.net with this command in the body: set mode digest pestlist Any problems email l...@collectionpests.com or l...@zaks.com ---------------------------------------------------------------------- To send an email to the list, send your msg to pestlist@museumpests.Net To unsubscribe from this list send an email to pestlist@museumpests.net and in the subject put: "unsubscribe" - no quotes please. You are receiving the Pestlist emails in standard mode. To change to the DIGEST mode send an email to imail...@museumpests.net with this command in the body: set mode digest pestlist Any problems email l...@collectionpests.com or l...@zaks.com ---------------------------------------------------------------------- To send an email to the list, send your msg to pestlist@museumpests.Net To unsubscribe from this list send an email to pestlist@museumpests.net and in the subject put: "unsubscribe" - no quotes please. You are receiving the Pestlist emails in standard mode. To change to the DIGEST mode send an email to imail...@museumpests.net with this command in the body: set mode digest pestlist Any problems email l...@collectionpests.com or l...@zaks.com ---------------------------------------------------------------------- To send an email to the list, send your msg to pestlist@museumpests.Net To unsubscribe from this list send an email to pestlist@museumpests.net and in the subject put: "unsubscribe" - no quotes please. You are receiving the Pestlist emails in standard mode. To change to the DIGEST mode send an email to imail...@museumpests.net with this command in the body: set mode digest pestlist Any problems email l...@collectionpests.com or l...@zaks.com
