Improvement of natural durability of date palm against termites (Microcerotermes diversus) by black liquor of kraft impregnation

Message:
Article Type:
Research/Original Article (دارای رتبه معتبر)
Abstract:

The date palms of southern Iran are exposed to one of the most dangerous termites in the world, Microcerotermes diversus Silvestri (Isoptera: Termitidae). Therefore, in order to evaluate, control and limit the activity of this termite, the resistance of palm wood impregnated with different concentrations of Kraft black liquor (30, 20, 10 and 40%) against termites attack was evaluated in laboratory (selective and non-selective test) and field conditions. Due to the special structure of palm wood anatomy, the results showed that the treatment of specimens with black liquor solution was an effective method in slowing down termite activity. Observations also showed that as the concentration of lignin in the impregnating solution increased, the desirability of wood for termites decreased, although no significant difference was observed between the 30 and 40% concentrations. Finally, FT-IR spectroscopy of black liquor showed the presence and effect of sulfate groups on reducing food desirability.

Language:
Persian
Published:
Iranian Journal of Wood and Paper Industries, Volume:12 Issue: 1, 2021
Pages:
45 to 56
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