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
Essential oil | Oil conc. (mg/ml) | Mean number of biting sandflies | |||||
|---|---|---|---|---|---|---|---|
| Â | Â | 30Â min | 60Â min | 90Â min | 120Â min | 150Â min | 180Â 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 | |