Natural durability of some hardwoods imported into Korea for deck boards against decay fungi and subterranean termite in accelerated laboratory tests

This study evaluated the natural durability of seven imported hardwoods Bangkirai (Shorea laevis), Burckella (Burckella.), Ipe (Handroanthus.), Jarrah (Eucalyptus marginata.), Kempas (Koompassia malaccensi), Malas (Homalium foetidum) and Merbau (Instia) used for deck boards against decay fungi (Fomitopsis palustris, Gloeophyllum trabeum, Trametes versicolor, Irpex lacteus) subterranean termite (Reticulitermes speratus kyushuensis) in accelerated laboratory tests. Ipe, Jarrah, were very durable to fungal attack, with performance comparable ACQ-treated wood. Bangkirai, Burckella, Kempas, classified as or moderately durable, depending on species tested. All wood except highly resistant attack. Termite resistance was similar showed somewhat less than all other but still significant resistance. These results indicated that selected naturally hardwood could inhibit attacks effectively ACQ treatment. The tested this is most likely due biocidal extractive content