Stimulating spalting in sugar maple using sub-lethal doses of copper

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College of Forest Resources and Environmental Science


Copper II is a common fungicide, especially in wood preservative formulations. Published research has noted fungal stimulation when fungi are subjected to sub-lethal amounts of copper ions. In this paper, the use of copper salts to stimulate spalting, as measured by fungal pigment production is investigated. At 1.0 kg/m 3 copper sulfate, Xylaria polymorpha increased external zone lines when grown on sugar maple (Acer saccharum). Use of this experimental method to produce spalted wood should yield increased external spalting without an associated increased loss in machinability.

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European Journal of Wood and Wood Products