Journal of Wood Science

Official Journal of the Japan Wood Research Society

Table 2 LC₅₀ values of the p-menthane monoterpenes against termites^I

From: Chemical structures of p-menthane monoterpenes with special reference to their effect on seed germination and termite mortality

Compound	LC₅₀ (mg/Petri dish)	95 % Confidential limits
Hydrocarbons
p-Cymene	n.m.^II
α-Terpinene^I	n.m.
γ-Terpinene^I	n.m.
(−)-α-Phellandrene	n.m.
(+)-Limonene^I	n.m.
Terpinolene	n.m.
p-Menthane	n.m.
Control	n.m.
Phenols
Thymol	0.65	0.59–0.70
Carvacrol	0.34	0.19–0.46
Control	n.m.
Alcohols
p-Cymen-8-ol	4.49	4.09–5.00
(−)-Terpinen-4-ol^I	1.26	1.18–1.32
1,8-p-Menthadiene-4-ol	3.96	3.64–4.32
(−)-Carveol	1.70	1.56–1.85
(−)-α-Terpineol^I	1.71	1.61–1.83
Trans-sobrerol	n.m.
(−)-Dihydrocarveol	1.85	1.60–2.09
(−)-Menthol	0.92	0.86–0.99
Isopulegol	3.67	3.40–3.98
Control	n.m.
Ketones
(−)-Carvone	1.62	1.44–1.83
Piperitone	1.87	1.68–2.06
(+)-Pulegone	0.50	0.44–0.55
Control	n.m.

^ISome of test results were cited in the literature data [13]. LC₅₀ = lethal concentration for 50 % mortality. Each determination was performed in triplicate for twenty worker termites
^II n.m. No mortality observed

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