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Table 1 Efficacy of a new combination of fipronil and permethrin against Rhipicephalus sanguineus and Ixodes ricinus (Study A)

From: Acaricidal efficacy of a new combination of fipronil and permethrin against Ixodes ricinus and Rhipicephalus sanguineus ticks

Tick species Study day Geometric mean of live ticks  
Untreated control dogs (n = 8) Treated dogs (n = 8) Efficacy (%)
R. sanguineus 2 31.8 0.0 100.0*
R. sanguineus 9 24.8 0.0 100.0*
R. sanguineus 16 27.8 0.0 100.0*
R. sanguineus 23 22.8 0.0 100.0*
R. sanguineus 30 24.7 0.7 96.7*
I. ricinus 2 36.7 0.0 100*
I. ricinus 9 32.5 0.0 100.0*
I. ricinus 16 30.7 0.0 100.0*
I. ricinus 23 31.6 0.0 100.0*
I. ricinus 30 33.3 0.3 99.2*
  1. *Significant difference between the tick population means of the treated and control groups (p = 0.005).