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    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.

    Publication Notes

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    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.

    Keywords

    Mould fungi, decay fungi, termite, biocide, azole, thujaplicin, mildew, indoor air pollution, insecticides, fungicides, wood-decaying fungi, insect pests, control, borates, thiabendzole, termite control, voriconazole

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