Performance of softwood preservative treated stakes after 4 years exposure in-ground to decay fungi and termites in tropical Australia

B M Ahmed (Shiday); John R J French; S R Przewloka; P Vinden; J A Hann; P Blackwell

Conference presentation

Performance of softwood preservative treated stakes after 4 years exposure in-ground to decay fungi and termites in tropical Australia

B M Ahmed (Shiday), John R J French, S R Przewloka, P Vinden, J A Hann and P Blackwell

Annual Meeting of International Research Group of Wood Protection (IRG), 39th (Istanbul, Turkey, 25-May-2008–29-May-2008)

IRG Secretariate

2008

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Abstract

Building

Environmental Science and Management

termites

fungi

softwood preservative

This field study was based on the 1993 IUFRO method and designed as a graveyard (in-ground) test in the tropical region of the Northern Territory to examine the efficacy of novel preservative formulations developed as alternative protection for softwood timber against decay fungi and termites for Hazard Class 3 and 4. This study was supported by the Forest and Wood Products Research and Development Corporation (FWPRDC). Timber specimens 500 (longitudinal) × 50 (tangential) × 25 (radial) mm were cut from the sapwood of fast grown Pinus radiata D. Don and treated with trimethylborate (TMB), sodium octoborate, linseed oil and fipronil in various solvents (toluene, linseed oil and deionised water) using a vacuum/pressure treatment method. After 4 years in-ground, the solvent control and fipronil (only) treated stakes were slightly attacked by soft rot, brown rot and white rot fungi. Most of the stakes had surface damage only, while few of the solvent controls had severe damage by only decay fungi. There was slight attack on the treated timber by soft rot fungi. A small number of solvent controls and borate treated stakes were severely attacked by subterranean termites, particularly Coptotermes acinaciformis (Froggatt). The fipronil only or fipronil with borate treated stakes were not attacked.

Details

Title: Performance of softwood preservative treated stakes after 4 years exposure in-ground to decay fungi and termites in tropical Australia
Authors: B M Ahmed (Shiday) (Author) - University of Melbourne
John R J French (Author) - University of the Sunshine Coast - Faculty of Science, Health and Education
S R Przewloka (Author) - University of Melbourne
P Vinden (Author)
J A Hann (Author) - University of Melbourne
P Blackwell (Author) - University of Melbourne
Conference details: Annual Meeting of International Research Group of Wood Protection (IRG), 39th (Istanbul, Turkey, 25-May-2008–29-May-2008)
Publisher: IRG Secretariate
Date published: 2008
Organisation Unit: University of the Sunshine Coast, Queensland
Language: English
Record Identifier: 99449874702621
Output Type: Conference presentation

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