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Protecting wood from mould, decay, and termites with multi-component biocide systems

Author(s):

Year:

2007

Publication type:

Miscellaneous Publication

Primary Station(s):

Forest Products Laboratory

Source:

International biodeterioration & biodegradation. Vol. 59 (2007): pages 20-24.

Description

Biocides must be developed for controlling mould establishment on cellulose-based building materials. Accordingly, biocides intended for indoor applications must be non- toxic, non-volatile, odourless, hypoallergenic, and able to provide long-term protection under conditions of high humidity. Multi-component biocide systems were tested in American Wood-Preservers’ Associations oil block tests for inhibition of brown-rot and white-rot decay fungi and American Society for Testing and Materials standard tests for inhibition of mould fungi and termites. Multi-component systems combining a borate base supplemented with either 0.1% azole or 0.5% thujaplicin, performed well against the two brown-rot fungi Postia placenta and Gloeophyllum trabeum; the white-rot fungus Coriolus versicolor; the three mould fungi Aspergillus niger, Penicillium chrysogenum, and Trichoderma viride; and the subterranean termite Reticulitermes flavipes (Kollar). It was concluded that for interior applications borate-based multi-component biocide systems can protect wood from decay fungi, mould fungi, and termites, and that a system containing thiabendazole provided protection at a lower retention than the other biocides in this study. Synergy was observed between the borate base and voriconazole in inhibition of mould.

Citation

Clausen, Carol A. 2007. Protecting wood from mould, decay, and termites with multi-component biocide systems. International biodeterioration & biodegradation. Vol. 59 (2007): pages 20-24.

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https://www.fs.usda.gov/treesearch/pubs/26010