Table 1 Geometric tick counts and percent efficacy of fipronil/(S)-methoprene/cyphenothrin against Ixodes scapularis 6 hours after infestation of 50 ticks
Day of tick infestation/removal | Geometric mean tick counts (min-max) Control | Geometric mean tick counts (min-max) Treated | Efficacy |
|---|---|---|---|
Day 1 | 27.7 (21–42) | 1.9 (0–14) | 93.2 % |
Day 7 | 23.0 (13–32) | 0.3 (0–1) | 98.9 % |
Day 14 | 22.5 (12–34) | 0.4 (0–3) | 98.2 % |
Day 21 | 29.7 (22–42) | 1.2 (0–5) | 95.9 % |
Day 28 | 25.7 (17–32) | 0.3 (0–1) | 98.9 % |