Table 3 Median lethal times (LT50) of the ten essential oils tested during contact or fumigant bioassays
From: In vitro activity of ten essential oils against Sarcoptes scabiei
Essential oil | Contact with a 10% solution | Contact with a 5% solution | Contact with a 1% solution | Fumigation | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
LT50 ± SD | χ 2 | P | LT50 ± SD | χ 2 | P | LT50 ± SD | χ 2 | P | LT50 ± SD | χ 2 | P | |
Lavender | 20.0 ± 6.6 | 94.7 | <0.0001 | 35.0 ± 20.0 | 95.0 | <0.0001 | – | – | – | 5.0 ± 1.6 | 100.7 | <0.0001 |
Tea tree | 10.0 ± 6.0 | 89.0 | <0.0001 | 30.0 ± 18.0 | 95.3 | <0.0001 | – | – | – | 4.0 ± 0.4 | 81.5 | <0.0001 |
Geranium | 10.0 ± 2.9 | 94.2 | <0.0001 | 20.0 ± 7.0 | 87.7 | <0.0001 | 150.0 ± 40.0 | 37.1 | <0.0001 | 5.0 ± 1.9 | 102.1 | <0.0001 |
Clove | 10.0 | 64.0 | <0.0001 | 10.0 | 79.0 | <0.0001 | 10.0 ± 4.3 | 87.9 | <0.0001 | 5.0 | 91.0 | <0.0001 |
Eucalyptus | 20.0 ± 16.0 | 92.2 | <0.0001 | 150.0 ± 44.0 | 69.2 | <0.0001 | – | – | – | 5.0 ± 0.3 | 91.0 | <0.0001 |
Manuka | 30.0 ± 7.5 | 86.4 | <0.0001 | 60.0 ± 24.0 | 89.5 | <0.0001 | – | – | – | 23.0 ± 8.7 | 91.7 | <0.0001 |
Cade | – | – | – | – | – | – | – | – | >60.0 | <0.0001 | ||
Palmarosa | 10.0 | 82.0 | <0.0001 | 10.0 ± 3.2 | 85.4 | <0.0001 | 20.0 ± 9.3 | 96.7 | <0.0001 | 7.0 ± 1.7 | 92.2 | <0.0001 |
Japanese cedar | 90.0 ± 42.0 | 93.6 | <0.0001 | 180.0 ± 7.8 | 3.1 | 0.0795 | – | – | – | 10.0 ± 3.4 | 94.4 | <0.0001 |
Bitter orange | 20.0 ± 8.0 | 86.5 | <0.0001 | 50.0 ± 33.0 | 99.6 | <0.0001 | – | – | – | 10.0 ± 5.4 | 94.0 | <0.0001 |