| Group | Male (n) | Female (n) | Total |
| Permethrin | 52.6 ± 4.2 (3) | 47.9 ± 4.1 (5) | 49.4 ± 4.1 |
| Fipronil | 42.1 ± 5.1 (5) | 54.2 ± 5.8 (3) | 45.5 ± 4.9 |
| Permethrin + Piperonyl Butoxide | 55.8 ± 3.6 (4) | 47.9 ± 3.5 (4) | 51.5 ± 3.5 |
| Untreated control | 56.9 ± 4.4 (2) | 46.1 ± 3.8 (6) | 47.9 ± 4.1 |