Laboratory evaluations of woods from Pakistan and their extractives against Postia placenta and Trametes versicolor

Abstract

Natural durable wood species are those which exhibit innate tolerance to wood decay organisms such as fungi and termites. The goal of this study was to evaluate 4 wood species (Dalbergia sissoo, Cedrus deodara, Morus alba and Pinus roxburghii) from Pakistan in order to determine their resistance to both a model brown (Postia placenta) and white (Trametes versicolor) rot fungus compared to a durable reference species (Tectonis grandis). In a 12 week soil bottle test, C. deodara and M. alba were found to be resistant to decay, D. sissoo was moderately resistant and P. roxbughii was non-resistant. This resistance was greatly reduced when blocks were leached with a series of solvents. When a non-durable species was treated with extractives from these species, decay resistance did not improve against either brown or white rot test fungi.

Citation

Mankowski, Mark; Hassan, Barbar; Bishell, Amy; Kirker, Grant. 2016. Laboratory evaluations of woods from Pakistan and their extractives against Postia placenta and Trametes versicolor. In: Proceedings IRG Annual Meeting. Lisbon, Portugal. 15-19 May 2016. ISSN 2000-8953. IRG/WP 16-10860. The International Research Group on Wood Protection, Stockholm, Sweden. Section 1 Biology. 10 pp.