Table 4 The onset of efficacy of imidacloprid 10%/flumethrin 4.5% collars against adult Ctenocephalides felis felis
From: Efficacy of an imidacloprid/flumethrin collar against fleas, ticks, mites and lice on dogs
| Study Day | Activity | Efficacy (%) |
|---|---|---|
| Day −1 | 100 fleas | |
| Day 0 | Collars fitted | |
| Day 1 (onset of efficacy) | 100 | |
| Day 6 | 100 fleas | |
| Day 7 (12 h after infestation on Day 6) | 100 | |
| Day 7 | 100 fleas | |
| Day 7 (6 h after infestation) | 100 | |
| Day 7 | 100 fleas | |
| Day 7 (2 h after infestation) | 100 |