Banner for LabNotes
From Lab Notes
Contact Information
Forest Products Laboratory
One Gifford Pinchot Drive
Madison, WI 53726-2398
Phone: (608) 231-9200
Fax: (608) 231-9592


You are here: FPL Home  / Information Products & Services  / Publications

Requested Product

Title: Incising and site effects on long-term durability of pressure-treated refractory wood species

Source: In: McCown, C.; Branton, K., eds. Proceedings, one hundred fourteenth annual meeting of the American wood protection association. Birmingham, AL: American Wood Protection Association: 138-148.

Author(s)Mankowski, Mark E., E. .; Lebow, Stan ; Kirker, Grant

Publication Year: 2018  View PDF »

Category: Conference Proceedings
Associated Research Project(s):   FPL-4723-3A

Abstract: Field data examining the long-term effects of chemical wood preservatives on refractory wood species with abundant heartwood is limited. This study was initiated to determine, by ground contact exposure, the effectiveness of preservativetreated heartwood material comprised of refractory Douglas-fir, Engelmann spruce, or southern pine. The study compared incised and non-incised lumber treated at three retentions with either ammoniacal copper arsenate (ACA) or chromated copper arsenate (CCA) and placed in ground contact at Mississippi and Wisconsin field test sites in 1975 and 1976, respectively. Test stakes were examined and rated for decay at various intervals over a 40-year period. Results indicate that incising improved long-term performance in samples treated at lower preservative retentions, particularly southern pine and Engelmann spruce heartwood treated with CCA. Additionally, unexpected higher levels of decay were noted in some of the treatments at the Wisconsin site compared to the Mississippi site. Several factors that may contribute to these differences will be discussed including soil structure, site topology and drainage, and other microclimatic effects between the two sites. Previous metagenomics studies have shown considerable differences in fungal community composition at these two sites, which may also explain the differences in decay activity at the two sites. Proper exposure site characterization is often overlooked as an important consideration when performing long-term field testing.

Keywords: Refractory; heartwood; southern pine; Douglas-fir; Engelmann spruce; ACA; CCA-C; incising; long-term durability; microclimate; Scheffer index

Publication Review Process: Informally Refereed (Peer-Reviewed)

File size: 3,072 kb(s)

Date posted: 04/04/2019

This publication is also viewable on Treesearch:  view
RITS Product ID: 93864
Current FPL Scientists associated with this product (listed alphabetically)
Kirker, Grant
Research Forest Products Technologist
Lebow, Stan T.
Research Forest Products Technologist
Mankowski, Mark
Research Entomologist

Additional items that might interest you
View the video celebrating FPL's 100 years of public service in 2010, from the producers of the Greatest Good....view

Research Highlights from FPL....view

Termite Eradication: A search for the Holy Grail.... view

Moisture Management in Residential Construction Series videos...view

Wood Floor Systems in Residential Construction Series videos....view
- FPL's Mission and Strategic Plan -

FPL's mission is to identify and conduct innovative wood and fiber utilization research that contributes to conservation and productivity of the forest resource, thereby sustaining forests, the economy, and quality of life. ... ..more »

- FPL Research Emphasis Areas -
Advanced Composites

As an integral part of the FPL mission, we improve the long-term sustainability of our Nation's forests by creating valuable composite products from biobased materials ... ..more »

Advanced Structures

The FPL has been in the forefront of wood-frame housing research since 1910 and has long been recognized as a world leader in such housing-related areas as engineered wood ... ..more »

Forest Biorefinery

We all know the compelling reasons that the United States needs to reduce its dependence on fossil fuels. Historically, the greatest increases in energy demand have been for transportation fuels ... ..more »


A leader in wood products research for over a century, the FPL is positioning itself to become the lead Federal research facility for the application of nanotechnology in forest products ... more »

Woody Biomass Utilization

Forests in the United States contain a substantial amount of small-diameter, overstocked, and underutilized material.FPL research projects are exploring the potential of the small-diameter ... ..more »