Table 4. Toxic effect of the vinegar from Durian wood and mass losses of the filter papers in a no-choice test against Coptotermes curvignathus

Treatment		Termite mortality (%)1)	Mass loss after 21 days (%)
Wood vinegar	Conc. of treating solutions (%)
Untreated control	0	16.67 ± 3.03a	57.68 ± 2.99a
350°C	3.0	65.91 ± 5.17b	44.17 ± 1.29b
	6.0	92.68 ± 4.31e	40.43 ± 2.60bc
	9.0	99.24 ± 1.52f	35.01 ± 4.44d
	12.0	100 ± 0f	27.03 ± 0.61e
400°C	3.0	73.49 ± 5.55c	40.44 ± 1.35bc
	6.0	98.49 ± 1.75	34.70 ± 2.86d
	9.0	100 ± 0f	27.65 ± 2.18e
	12.0	100 ± 0f	21.75 ± 2.68f
450°C	3.0	84.85 ± 5.53d	37.45 ± 2.27cd
	6.0	100 ± 0f	30.76 ± 1.90e
	9.0	100 ± 0f	23.10 ± 2.99f
	12.0	100 ± 0f	20.00 ± 3.07f

Means (n = 4) ± SD using 55 termites per replicate.
Duncan’s multiple range test indicated significance (p < 0.05) between groups denoted by numbers followed by letters.