Table 3. Weight loss, termite mortality, visual rate, and resistance classification after the termite resistance test

Wood species			Average weight loss (%)1)	Mortality (%)1)	Visual rate2)	Class of resistance3)
Softwood	Japanese cedar	Cryptomeria japonica	3.6 ± 1.2c	100 ± 0.0a	9.0	Moderately resistant
	Japanese larch	Larix kaempferi	46.9 ± 6.9a	22.7 ± 7.0c	0.0	Nonresistant
	Korean pine	Pinus koraiensis	22.1 ± 5.5b	36.6 ± 8.1b	6.9	Moderately resistant
	Korean red pine	Pinus densiflora	45.4 ± 5.7a	28.3 ± 5.5bc	4.5	Nonresistant
Hardwood	East Asian ash	Fraxinus rhynchophylla	26.1 ± 0.7b	19.0 ± 4.9c	6.1	Moderately resistant
	East Asian white birch	Betula platyphylla	40.3 ± 1.6a	13.9 ± 3.2c	4.9	Nonresistant
	Mongolian oak	Quercus mongolica	4.5 ± 0.5d	98.3 ± 2.7a	8.8	Resistant
	Mossy locust	Robinia pseudoacacia	5.2 ± 1.0d	97.4 ± 1.6a	8.4	Resistant
	Oriental cork oak	Quercus variabillis	4.4 ± 0.4d	81.5 ± 17.8ab	8.5	Resistant
	Sawleaf zelkova	Zelkova serrata	1.7 ± 0.3e	90.3 ± 8.9a	9.5	Highly resistant
	Sawtooth oak	Quercus acutissima	12.0 ± 2.3c	72.7 ± 27.7b	7.9	Moderately resistant
	Tulip tree	Liriodendron tulipifera	1.8 ± 0.3e	99.2 ± 0.9a	9.4	Highly resistant

Value followed by different letters (^a–e) indicate significant differences according to Duncan’s multiple range test (p < 0.05).
Visual rating was designated by AWPA E 1-17: sound, 10; trace (surface nibbles permitted), 9.5; light attack (up to 3% of the cross-sectional area affected), 9; 3%–10% affected, 8; 10%–30% affected, 7; 30%–50% affected, 6; 50%–75% affected, 4; failure, 0.
Classification of termite resistance based on visual rating: Highly resistant, ≥ 9; Resistant, ≥ 8; Moderately resistant, ≥ 6; Nonresistant, < 6.