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Tolerance of Serpula lacrymans to copper-based wood preservativesAuthor(s): Anne Christine Steenkjaer Hastrup; Frederick Green; Carol A. Clausen; Bo Jensen
Source: International biodeterioration & biodegradation. Vol 56 (2005): Pages 173-177
Publication Series: Miscellaneous Publication
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DescriptionSerpula 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.
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CitationHastrup, 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
KeywordsSerpula 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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