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Table 10 Onset and speed of efficacy of imidacloprid 10%/flumethrin 4.5% collars against Rhipicephalus sanguineus and Ixodes ricinus on dogs

From: Efficacy of an imidacloprid/flumethrin collar against fleas, ticks, mites and lice on dogs

Study Day Activity and efficacy (%)
Tick species R. sanguineus I. ricinus
Day 0 Collars + 50 ticks (25♂ 25♀) Collars + 35 ticks (15♂ 20♀)
Day 2 (onset of efficacy) 96.8 96.2
Day 2 Collars + 50 ticks (25♂ 25♀) Collars + 35 ticks (15♂ 20♀)
Day 2 ( 6 h after infestation) 99.2 100