Chin, Wan Yin (2014) Efficacy of Commercial Termiticides in Controling Fungal Decay in Wood. [Final Year Project Report] (Unpublished)
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Abstract
In this study, the effectiveness of wood protecting termiticides for decay control are determined on selected treated wood species of Engkabang jantong (Shorea macrophylla) undifferentiated wood, Acacia (Acacia mangium) heartwood and Rubberwood (Hevea brasiiiensis) sapwood treated with Chlorpyrifos, Cypermethrin and Permethrin against representative white-rot (Pycnoporus sanguineus) and brown-rot (Gloeophyllum trabeun) decay fungi using prescribed American Society for Testing and Materials (ASTM) decay test methodology. The wood blocks were evaluated based on the fungal decay rates after 12 weeks. The treated Acacia mangium showed significant (P < 0.05) resistance against fungi decay by least mass loss as compared to Hevea brasiliensis which had higher mass losses. Chlorpyrifos preservative was found to have the higher retention (0.71% m/m in high retention and 0.39% m/m in low retention) in vacuumatmosphere pressure method and (0.088% m/m in high retention and 0.036% m/m in low retention) in dipping method compared to other two preservatives. Generally, Chlorpyrifos in dipping method had the potential in protecting the Acacia mangium against Pycnoporus sanguineus and Gloeophyllum trabeun decay fungi. However, Permethrin and Cypermethrin preservatives gave least wood protection against the decay fungi in both dipping and vacuum-atmosphere pressure methods. In overall durability rating, Chlorpyrifos gave the results of resistant and moderately durable against Pycnoporus sanguineus and Gloeophyllum trabeun decay fungi in dipping method, while Permethrin and Cypermethrin showed moderate resistant and non durable according to ASTM D2017 and EN350-1 classification scale in both methods.
| Item Type: | Final Year Project Report |
|---|---|
| Additional Information: | Project Report (B.Sc.) -- Universiti Malaysia Sarawak, 2014. |
| Uncontrolled Keywords: | Wood decay, Decay fungi, Chlorpyrifos, Cypermethrin, Permethrin, Wood protection, unimas, university, universiti, Borneo, Malaysia, Sarawak, Kuching, Samarahan, ipta, education, undergraduate, , research, Universiti Malaysia Sarawak. |
| Subjects: | Q Science > QK Botany |
| Divisions: | Academic Faculties, Institutes and Centres > Faculty of Resource Science and Technology Faculties, Institutes, Centres > Faculty of Resource Science and Technology |
| Depositing User: | Gani |
| Date Deposited: | 16 Apr 2019 00:48 |
| Last Modified: | 30 Jan 2023 07:56 |
| URI: | http://ir.unimas.my/id/eprint/24489 |
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