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Publication Information

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Title: Laboratory Evaluations of Durability of Southern Pine Pressure Treated With Extractives From Durable Wood Species

Author: Kirker, Grant T.; Blodgett, Amy; Lebow, Patricia;

Date: 2015

Source: Journal of Economic Entomology

Publication Series: Scientific Journal (JRNL)

Description: Extracts from sawdust of four naturally durable wood species [Alaskan yellow cedar, AYC, Cupressus nootkanansis D. Don 1824; eastern red cedar, ERC, Juniperus virginiana L.; honey mesquite, HM, Prosopis glandulosa Torr.; and black locust, BL, Robinia pseudoacacia L.] were used to treat southern pine, Pt, Pinus taeda L. sapwood blocks. Extractive treated blocks were evaluated for decay resistance in standard soil bottle fungal assays challenged with brown and white rot decay fungi. Results showed that extractives did impart some improvement to decay resistance of Pt blocks. BL- and HM-treated Pt blocks were also used in choice and no-choice assays to determine feeding preference and damage by eastern subterranean termites (Reticulitermes flavipes) Kollar. Minimal feeding on treated blocks was seen in both choice and no-choice assays. In choice assays, there was similar mortality between HM and BL arenas; however, in no-choice assays, complete mortality was recorded for HM-treated Pt and high mortality was seen with BL-treated Pt. Subsequent dose mortality termite assays showed HM to be effective in killing R. flavipes at low concentrations. Both HM and BL show promise as deterrents or termiticidal protectants and will be further evaluated in field studies.

Keywords: wood, durability, Reticulitermes flavipes, feeding, extractives

Publication Notes:

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Citation:


Kirker, G.T.; Bishell, A.B.; Lebow, P.K. 2015. Laboratory evaluations of durability of Southern pine pressure treated with extractives from durable wood species. Journal of Economic Entomology. 109(1): 259-266.

 


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