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    Description

    Serpula lacrymans, the dry rot fungus, is considered the most economically important wood decay fungus in certain temperate regions of the world, namely northern Europe, Japan, and Australia. Previously, copper-based wood preservatives were commonly used for pressure treatment of wood for building construction, but some decay fungi are known to be copper tolerant. In this study, soil-block tests were undertaken to clarify the effect of copper, copper citrate, and alkaline copper quaternary-type D (ACQ-D) on the decay capabilities of S. lacrymans compared with an alternative wood preservative not containing copper. Twelve isolates of the dry rot fungus S. lacrymans and four other brown-rot species were evaluated for weight loss on wood treated with 1.2% copper citrate, 0.5% ACQ-D, and 0.5% naphthaloylhydroxylamine (NHA). Eleven out of 12 isolatcs of S. lacrymans were shown to be tolerant towards copper citrate. The ACQ-D and NHA preservatives, on the other hand, were both effective against the dry rot isolates.

    Publication Notes

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    Citation

    Hastrup, Anne Christine Steenkjaer; Green, Frederick; Clausen, Carol A.; Jensen, Bo 2005. Tolerance of Serpula lacrymans to copper-based wood preservatives. International biodeterioration & biodegradation. Vol 56 (2005): Pages 173-177

    Keywords

    Serpula lacrymans, dry rot, copper tolerance, copper citrate, ACQ-D, NHA, brown rot, wood preservatives, wood-decaying fungi, copper, soil block testing, metal tolerance, preservatives, copper compounds, decay fungi, ammoniacal copper quat

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