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Table 2 Repellent activities (%) of Lemon grass and T. minuta essential oils in five concentrations ranging from 0.125 to 1 mg/ml against P. duboscqi, Neveu Lemaire

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

  Oil conc. (mg/ml) Repellency (%)
30 min 60 min 90 min 120 min 150 min 180 min
Essential oil 0.125 96.875 ± 0.20 84.62 ± 2.08 53.40 ± 2.14 52.05 ± 0.38 43.91 ± 0.19 51.3 ± 1.71
  0.25 96.875 ± 0.19 98.21 ± 0.33 98.81 ± 0.19 90.66 ± 0.51 83.57 ± 1.90 59.13 ± 0.51
C. citratus 0.50 97.81 ± 0.30 97.69 ± 0.20 98.09 ± 0.20 92.94 ± 0.20 93.70 ± 1.00 89.13 ± 1.20
  0.75 99.38 ± 0.20 97.44 ± 0.19 98.34 ± 0.19 99.0 ± 0.19 100.0 ± 0.00 87.67 ± 0.67
  1.00 100.00 ± 0.00 100.00 ± 0.00 98.72 ± 0.20 99.77 ± 0.20 100.00 ± 0.00 100.0 ± 0.00
  0.125 83.72 ± 1.00 58.46 ± 2.14 48.94 ± 2.83 44.31 ± 3.42 28.69 ± 2.36 21.49 ± 2.27
Tagetes minuta 0.25 90.23 ± 0.80 64.10 ± 2.20 70.21 ± 2.08 60.98 ± 4.55 51.3 ± 3.01 46.81 ± 5.81
  0.50 96.88 ± 0.33 91.53 ± 0.33 86.53 ± 0.67 74.51 ± 3.84 58.22 ± 3.34 52.22 ± 7.78
  0.75 98.14 ± 0.40 100.00 ± 0.00 97.87 ± 0.19 88.45 ± 0.84 64.35 ± 2.34 75.96 ± 1.76
  1.00 100.0 ± 0.00 100.00 ± 0.00 98.81 ± 0.19 98.68 ± 0.00 91.30 ± 0.60 88.89 ± 1.57
Controls         
 DEET 0.196 100.0 ± 0.00 100.0 ± 0.00 100.0 ± 0.00 100.0 ± 0.00 100.0 ± 0.00 95 ± 1.70