Table 7 Efficacy of imidacloprid 10%/flumethrin 4.5% collars against Rhipicephalus sanguineus on dogs 48 h after each infestation
From: Efficacy of an imidacloprid/flumethrin collar against fleas, ticks, mites and lice on dogs
Study Day or Week | Activity and efficacy (%) | |||
|---|---|---|---|---|
Day −2 | 50 ticks (25♂ 25♀) | 50 ticks (25♂ 25♀) | – | – |
Day −1 | – | – | 50 ticks (25♂ 25♀) | 50 ticks (both sexes) |
Day 0 | Collars fitted to dogs in treated groups | |||
Day 2 (therapeutic efficacy) | 84.8 | 64 | 46.5 | 32.2 |
Day 7 | 97 | 100 | – | 98 |
Week 4 | 100 | 100 | 98 | 100 |
Week 8 | 98.4 | 100 | 98.3 | 100 |
Week 12 | 99.7 | 99.6 | 100 | 99.1 |
Week 16 | 96.7 | 100 | 98.1 | 100 |
Week 20 | 98.5 | 100 | 99.4 | 100 |
Week 24 | 99.1 | 100 | 99.7 | 99.4 |
Week 28 | – | 100 | 96.9 | 96.6 |
Week 32 | – | 98.2 | 96.8 | 90.3 |
Week 35 | – | 100 | 99.1 | 93.2 |