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Table 3 Mean tick counts and percent efficacy of DPP at 2 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 28.1 39.1 38.1 37.6 38.3 41.0 38.8
AM tick counts treated 34.3 14.1 14.6 14.6 8.1 16.4 20.4
AM % efficacy 0 63.9d 61.6d 61.1d 78.8d 60.1d 47.4d
Test F (1,14) 72.65 94.65 36.77 151.08 51.15 26.28
P-value < 0.0001 < 0.0001 < 0.0001 < 0.0001 < 0.0001 0.0002
GMb tick counts control 27.7 38.8 37.8 37.5 37.9 40.8 38.4
GM tick counts treated 33.9 12.1 14.0 10.4 7.0 14.0 18.5
GM % efficacy 0 68.9d 63.0d 72.2d 81.7d 65.8d 51.8d
Test F (1,14) 21.05 63.40 11.78 53.82 19.99 15.05
P-value 0.0004 < 0.0001 0.004 < 0.0001 0.0005 0.0017
  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