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
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% | |