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Table 2 Repellent efficacy of a fipronil-permethrin combination against Ctenocephalides canis determined by numbers of fleas removed from the cage liner at 1 h post-infestation of dogs

From: Sustained speed of kill and repellency of a novel combination of fipronil and permethrin against Ctenocephalides canis flea infestations in dogs

   Day 2 Day 7 Day 14 Day 21 Day 28
Treated Group (6 dogs) Total number of fleas (collected on dogs + liners) 525 529 436 482 511
  Total number of fleas collected on liner (dead) 472 (427) 501 (498) 359 (313) 291 (150) 231 (191)
  % Repellency 89.9% 94.7% 82.3% 60.4% 42.2%
Control Group (6 dogs) Total number of fleas (collected on dogs + liners) 534 540 556 502 540
  Total number of fleas collected on liners (dead) 18 (18) 4 (4) 16 (16) 10 (10) 7 (7)
  % Repellency 3.4% 0.7% 2.9% 2.0% 1.3%
% Corrected repellency at 1 h PI* 86.5% 94.0% 79.5% 58.4% 43.9%
  1. *PI: Post Infestation. Table lines in Bold = Result lines highlighted.