Table 2.
Fumigant antitermitic activity of oriental sweetgum and valerian essential oils and their components against Japanese termites at 2 days.
| Compounds | Mortality (%, Mean ± S.E., N = 5) | |||||
|---|---|---|---|---|---|---|
| 10 a | 5 | 2.5 | 1.25 | 0.62 | 0.31 | |
| Oriental sweetgum | 100a b | 100a | 100a | 100a | 10 ± 17.3cd | 0b |
| Valerian | 52 ± 22.8b | 42 ± 21.6b | 24 ± 11.4bc | 20 ± 15.8de | 14 ± 16.7cd | 6 ± 8.9b |
| Styrene | 54 ± 11.4b | 48 ± 8.3b | 2 ± 4.4cd | - | - | - |
| Benzaldehyde | 100a | 100a | 100a | 38 ± 10.95cde | 16 ± 20.7cd | 4 ± 5.4b |
| Benzyl alcohol | 100a | 100a | 100a | 62 ± 31.1abc | 46 ± 18.1bc | 20 ± 15.8b |
| cis-Ocimene | 54 ± 15.1b | 36 ± 16.7b | 10 ± 12.2bcd | - | - | - |
| Aceptophenone | 100a | 100a | 100a | 88 ± 13.0ab | 82 ± 13.0ab | 14 ± 8.9b |
| 1-Phenyl-1-ethanol | 100a | 100a | 100a | 100a | 66.8 ± 8.9ab | 22 ± 16.4b |
| Hydrocinnamyl alcohol | 100a | 100a | 94 ± 5.4a | 54 ± 16.7bcd | 10 ± 7.0cd | - |
| tans-Cinnamyl aldehyde | 100a | 100a | 100a | 100a | 100a | 100a |
| trans-Cinnamyl alcohol | 100a | 36 ± 16.7b | 28 ± 13.0b | 22 ± 16.4cde | 10 ± 12.2cd | 8 ± 13.0b |
| cis-Asarone | 52 ± 21.6b | 24 ± 11.4bc | 22 ± 16.4bcd | 20 ± 15.8de | 14 ± 11.4cd | 6 ± 8.9b |
| trans-Asarone | 2 ± 4.4c | - c | - | - | - | - |
| Control | 0c | 0c | 0d | 0e | 0d | 0b |
| F13, 56 = 69.96 p < 0.0001 | F12, 52 = 74.21 p < 0.0001 | F12, 52 = 168.71 p < 0.0001 | F10, 44 = 33.49 p < 0.0001 | F10, 44 = 33.89 p < 0.0001 | F9, 40 = 46.25 p < 0.0001 | |
a mg/L air. b Means within a column followed by the same letters are not significantly different (Scheffé’s test). c Not tested.