DETECTION OF TERMITE DAMAGE IN HOOP PINE (ARAUCARIA CUNNINGHAMII) TREES USING NONDESTRUCTIVE EVALUATION TECHNIQUES

Abstract

The purpose of this study was to investigate the standard parameters of undamaged, living hoop pine trees using nondestructive evaluation techniques. This study also detected stress wave velocity tomogram and corresponding velocity maps of hoop pine trees with and without termite damage. The range of demarcation between termitedamaged and undamaged wood occurred at transversal stress wave velocities of 988–1164 m s^-1. Different nondestructive evaluation parameters could serve as indices for diagnosing standard values. Transversal velocity tomogram and corresponding velocity maps of hoop pine trees with and without termite damage could detect the general location and area of wood deterioration.