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Table 4 Mean tick counts and percent efficacy of DPP at 8 hours after treatment or infestation against adult R. sanguineus (s.l.)

From: Efficacy and speed of kill of a topically applied formulation of dinotefuran-permethrin-pyriproxyfen against weekly tick infestations with Rhipicephalus sanguineus (sensu lato) on dogs

Day 0c 7 14 21 28 35 42
AMa tick counts control 25.0 34.3 27.6 35.3 33.9 29.5 37.6
AM tick counts treated 29.1 3.8 2.9 2.9 0.9 5.5 11.4
AM % efficacy 0.0 89.1d 89.6d 91.8d 97.4d 81.4d 69.8d
Test F (1,14) 173.07 189.78 443.41 302.28 41.35 73.68
P-value < 0.0001 < 0.0001 < 0.0001 < 0.0001 < 0.0001 < 0.0001
GMb tick counts control 24.7 33.9 27.3 35.1 33.5 28.7 37.3
GM tick counts treated 28.5 2.6 2.1 1.8 0.6 2.5 9.3
GM % efficacy 0.0 92.3d 92.2d 94.7d 98.1d 91.2d 75.0d
Test F (1,14) 60.12 73.41 69.47 219.96 22.84 27.16
P-value < 0.0001 < 0.0001 < 0.0001 < 0.0001 0.0003 0.0001
  1. a AM arithmetic mean
  2. b GM geometric mean
  3. cCounts obtained from Group 3 dogs
  4. dSignificant difference between treated and control group (p <0.05) based on ANOVA