Day | Mean numbers of ticks (18 h after re-infestation) | |||
---|---|---|---|---|
Untreated controls (Group 1) | Imidacloprid/ flumethrin (Group 2) | (S)-methoprene/ amitraz/fipronil (Group 3)re-treatment: Day 35 | (S)-methoprene/ amitraz/fipronil (Group 4) | |
2* | 20.5 | 4.5 | 1.6 | - |
8 | 25.4 | 0.3 | 0.0 | - |
15 | 30.9 | 0.1 | 0.6 | - |
22 | 31.5 | 0.1 | 1.9 | - |
29 | 34.4 | 0.3 | 4.6 | - |
36 | 34.9 | 0.4 | 0.5** | - |
43 | 32.1 | 0.4 | 0.0 | 0.4 |
50 | 33.6 | 0.1 | 1.0 | 2.3 |
57 | 35.8 | 0.4 | 2.5 | 3.9 |
64 | 36.9 | 0.8 | 5.8 | 12.0 |
71 | 33.1 | 0.1 | 9.0 | 15.1 |