Research Article
Assessment of Antitick and Repellent Activity of Azadirachta indica Oil against Adults and Larvae Stages of Rhipicephalus microplus
Table 1
Dose-response data of therapeutic grade A. indica oil and fipronil against adults of R. microplus.
| | Concentrations (%) | Number of ticks treated | Weight of ticks (mg) (mean ± SE) | Mortality of ticks (%) | Egg mass (mg) (mean ± SE) | RI | IO (%) |
| A. indica oil | 0.625 | 15 | 2863 ± 0.007 | 13.33 | 626 ± 0.001 | 21.86 | 61.3 | 1.25 | 15 | 2894 ± 0.003 | 33.33 | 580 ± 0.003 | 20.04 | 66.4 | 2.5 | 15 | 2770 ± 0.003 | 60.0 | 523 ± 0.002 | 18.88 | 68.3 | 5 | 15 | 1761 ± 0.008 | 73.33 | 280 ± 0.003 | 15.90 | 73.3 | 10 | 15 | 1998 ± 0.067 | 86.66 | 154 ± 0.002 | 7.70 | 87.1 | Control | 15 | 2929 ± 0.029 | 0.0 | 1750 ± 2.88 | 59.74 | 0.0 |
| Fipronil | 0.59 | 15 | 2477 ± 0.017 | 26.66 | 870 ± 0.010 | 35.12 | 42.4 | 1.18 | 15 | 2477 ± 0.009 | 46.66 | 830 ± 0.006 | 33.50 | 45.1 | 2.36 | 15 | 2437 ± 0.019 | 86.66 | 235 ± 0.008 | 9.64 | 84.20 | 4.73 | 15 | 2352 ± 0.054 | 99.33 | 0.0 | 0.0 | 100 | Control | 15 | 2767 ± 0.017 | 0.0 | 1689 ± 0.032 | 61.04 | 0.0 |
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RI = reproductive index; IO (%) = inhibition of oviposition.
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