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
Email

 

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

Requested Product

Title: Field tests of the efficacy of zinc and fatty amine in preventing colonization by copper-tolerant fungi

Source: International Biodeterioration & Biodegradation 70(2012) 74-78

Author(s)Lebow, Stan; Woodward, Bessie; Halverson, Steven; West, Michael

Publication Year: 2012  View PDF »

Category: Journal Articles
Associated Research Project(s):   FPL-4723-3

Abstract: Ground-contact durability of stakes treated with acidic copper formulations was evaluated. All test formulations incorporated copper, dimethylcocoamine and propanoic acid; one set of formulations also included zinc. Sapwood stakes cut from the southern pine group were pressure-treated to a range of retentions with each formulation and placed into plots within Harrison Experimental Forest in Mississippi and compared with untreated stakes and chromated copper arsenate-treated stakes. Stakes were inspected and given a visual condition rating after 1, 2, 3, 4, 5, and 7 years. Most stakes at higher retentions remained in good condition after 7 years; sporadic failures occurred in all but the highest retention of the zinc formulation. The sporadic nature of fungal attack by a fungus thought to be a strain of Antrodia radiculosa indicates that failures were caused by copper-tolerant fungi. At the concentrations evaluated, neither the dimethylcocoamine nor the propanoic acid offered adequate protection against copper-tolerant fungi. Addition of zinc notably increased decay resistance, and absence of failures at the highest retention may indicate that zinc can help to protect against copper-tolerant fungi. However, the sporadic nature of copper tolerance makes this finding difficult to confirm. Inspection of theses stakes will continue.

Keywords: preservative; field tests; copper; zinc; fatty amine; copper tolerance

Publication Review Process: Informally Refereed (Peer-Reviewed)

File size: 196 kb(s)

Date posted: 05/04/2012

This publication is also viewable on Treesearch:  view
RITS Product ID: 41994
Current FPL Scientist associated with this product
Lebow, Stan T.
Research Forest Products Technologist
  

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 »


Nanotechnology

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 »