Canadian Forest Service Publications
An annotated bibliography on the effect of bluestain on wood utilization with emphasis on mountain pine beetle vectored bluestain. 2005. Byrne, T.; Woo, K.L.; Uzunovic, A.; Watson, P.A. Natural Resources Canada, Canadian Forest Service, Pacific Forestry Centre, Victoria, BC. Mountain Pine Beetle Initiative Working Paper 2005-04. 58 p.
Issued by: Pacific Forestry Centre
Catalog ID: 25333
Availability: PDF (download)
This bibliography provides a summary of studies on the effect of bluestain fungi on wood quality and forest products, particularly studies relevant to the bluestain vectored by the mountain pine beetle, Dendroctonus ponderosae. The references are given in three sections: 1) mountain pine beetle and associated bluestain fungi, 2) bluestain and solid wood utilization, and 3) bluestain and pulp quality. Research on the biology of the associated bluestain fungi is evolving and there is now a solid body of scientific literature on this subject. In terms of bluestain and solid wood there is little specifically on mountain pine beetle-killed lodgepole pine with the exception of some recent work on lumber properties. Recently killed bluestained lodgepole pine appears to be sound but may pose a marketing problem in some markets because of its colour. References on the dryness of trees initially induced by bluestain fungi are given. The splits and checks that occur as the trees dry cause processing problems and volume and grade recovery are reduced. These references are old and the modern economics of producing products from dry logs are unknown Due to substantial reduction in moisture content, bluestained wood generates more pins and fines during chip production. Literature detailing the effects of mountain pine beetle-associated bluestain on pulp quality is limited and the results are inconsistent In general, kraft pulping studies have suggested that pulp yield and paper strength properties are not significantly affected by bluestain. Mechanical pulp produced from bluestain wood exhibits acceptable quality; however, brightening costs are expected to be significantly affected, as bluestain pulp is more difficult to bleach.