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Table 3 Biting rates of P. duboscqi sandflies when tested against five ranging from 0.125 mg/ml to 1.0 mg/ml of C. citratus and T. minuta essential oils DEET and Tween 80

From: Repellent effects of the essential oils of Cymbopogon citratus and Tagetes minuta on the sandfly, Phlebotomus duboscqi

Essential oil Oil conc. (mg/ml) Mean number of biting sandflies
   30 min 60 min 90 min 120 min 150 min 180 min
C. citratus 0.125 0.6 ± 0.20 6.0 ± 2.08 21.90 ± 2.14 21.1 ± 0.38 25.8 ± 0.19 22.4 ± 1.71
0.25 1.0 ± 0.19 0.67 ± 0.33 0.56 ± 0.19 4.11 ± 0.51 7.56 ± 1.90 18.8 ± 0.51
0.5 0.7 ± 0.30 0.9 ± 0.20 0.9 ± 0.20 0.7 ± 0.30 2.9 ± 1.00 5.0 ± 1.20
0.75 0.20 ± 0.20 0.89 ± 0.19 0.78 ± 0.19 0.00 ± 0.00 0.0 ± 0.00 0.00 ± 0.00
1 0.00 ± 0.00 0.00 ± 0.00 0.60 ± 0.20 0.1 ± 0.01 0.00 ± 0.00 0.00 ± 0.00
0.125 0.22 ± 0.19 16.2 ± 2.14 23.8 ± 2.83 28.4 ± 3.42 32.8 ± 2.36 36.9 ± 2.27
Tagetes minuta 0.25 0.78 ± 0.19 14.22 ± 2.22 14.0 ± 2.08 19.89 ± 4.55 22.44 ± 3.01 25.0 ± 5.81
0.5 0.8 ± 0.20 0.2 ± 0.20 6.3 ± 0.67 13.1 ± 3.84 19.22 ± 3.34 22.44 ± 7.78
0.75 0.78 ± 0.40 0.00 ± 0.00 0.78 ± 0.19 0.33 ± 0.33 16.4 ± 2.34 11.3 ± 1.76
1 0.00 ± 0.00 0.00 ± 0.00 0.56 ± 0.19 0.67 ± 0.00 0.11 ± 0.20 5.22 ± 1.57
Controls 0.196 mg/ml 0.00 ± 0.00 0.00 ± 0.00 0.00 ± 0.00 0.00 ± 0.00 0.00 ± 0.00 0.33 ± 0.13
DEET Tween 80 43.00 ± 6.30 39.00 ± 2.50 47.00 ± 7.1 51.00 ± 5.5 46 ± 1.00 47.00 ± 7.50
  1. DEET—n,n-diethyl-3-methylbenzamide
  2. Tween 80—polysorbate 80