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: Fungi associated with decay in treated Douglas-fir transmission poles in the northeastern United States

Source: Forest Products Journal. 30(4): 51-57.

Author(s): Zabel, Robert A.; Kenderes, Allen M.; Lombard, Frances F.

Publication Year: 1980  View PDF »

Category: Journal Articles

Abstract: Decay was detected by cultural methods in 190 of 952 (approximately 20%) treated Douglas-fir transmission poles installed for up to 10 years in the northeastern United States . Preservative systems and treatments for the poles sampled were penta in petroleum oil, penta in liquefied petroleum gas , chromated copper arsenate, and ammoniacal copper arsenate. Isolations were made from various radial positions on several increment cores selected from the groundline zone and deep check vicinity for each pole. The decay was in early stages, often localized, and in many cases, detectable only by cultural means. The decay fungi, representing 19 identified species, were isolated primarily from untreated inner pole sections and at the groundline. Poria carbonica, a decay fungus known primarily from the western United States, and Poria placenta, were the two species isolated most frequently. Six of the nineteen species were in themonocaryon nuclear condition and identified by cross matching with known monocaryon isolates and subsequent formation of clamp connections. Decay frequency in the poles generally increased with check depth. The time of occurrence and location of the decay inmany poles suggests that in some cases early decay may escape preservative treatment or becomes established shortly thereafter in the storage yard. Decay may also start shortly after installation and be associated with check development into untreated wood. The data suggest that pole preparation or treatment practices that would increase preservative penetration and reduce check development would minimize decay development.

Publication Review Process: Non-Refereed (Other)

File size: 400 kb(s)

Date posted: 09/10/2018
RITS Product ID: 91752

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 »