Tolerance of Serpula lacrymans to copper-based wood preservatives

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 c...

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Bibliographic Details
Published in:International biodeterioration & biodegradation 2005-10, Vol.56 (3), p.173-177
Main Authors: Hastrup, Anne Christine Steenkjær, Green, Frederick, Clausen, Carol A., Jensen, Bo
Format: Article
Language:English
Subjects:
ACQ-D
alkaline copper quaternary type D wood preservative
brown-rot fungi
copper
Copper citrate
Copper tolerance
decay fungi
Dry rot
fungicide resistance
metal tolerance
NHA
preservative treated wood
Serpula lacrymans
wood preservatives
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Summary: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 isolates 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.
ISSN:0964-8305
1879-0208
DOI:10.1016/j.ibiod.2005.06.008