Canadian Forest Service Publications
Bleaching treatments for blue-stained mountain pine beetle lodgepole pine. 2005. Evans, P.D. Natural Resources Canada, Canadian Forest Service, Pacific Forestry Centre, Victoria, BC. Mountain Pine Beetle Initiative Working Paper 2005-06. 15 p.
Available from: Pacific Forestry Centre
Catalog ID: 25431
CFS Availability: PDF (download)
The study compared the ability of seven bleaching agents to remove the blue colour from blue-stained lodgepole pine without adversely affecting the colour of unstained heartwood. A 10% solution of sodium hypochlorite was effective at removing the blue colour from blue-stained lodgepole pine sapwood. Sodium hypochlorite did not adversely affect the colour of heartwood, whereas three other bleaches initially caused a pronounced yellowing of heartwood, which faded over time.