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Table 11 Repellent efficacy of imidacloprid 10%/flumethrin 4.5% collars against Rhipicephalus sanguineus and Ixodes ricinus on dogs 6 hours 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 (%)
Tick species R. sanguineus 50 ticks (25♂ 25♀) I. ricinus 40 ticks (20♂ 20♀)
Day 0 Collars fitted to dogs in treated group
Week 4 100 100
Week 8 99.7 100
Week 12 100 100
Week 16 99.4 100
Week 20 98.1 100
Week 24 99 100
Week 28 99 100
Week 32 97.6 100
Week 34 100 100