Skip to main content

Advertisement

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
  1. Abbreviation: SD standard deviation