Knock-down effect (%) at 1 h | Mean flea counts and preventive efficacy (%) | |||||||
---|---|---|---|---|---|---|---|---|
at 1 h | at 12 h | |||||||
Group 2 | Group 3 | Group 1 | Group 2 | Group 3 | Group 1 | Group 2 | Group 3 | |
Fipronil/permethrin | Fipronil | Control | Fipronil/permethrin | Fipronil | Control | Fipronil/permethrin | Fipronil | |
D7 | 65.2 %a | 7.8 % | 85.5 | 1.2a (98.6 %) | 51.2 (40.2 %) | 60.7 | 0.0 (100.0 %) | 0.9 (99.0 %) |
D14 | 67.7 %a | 5.8 % | 80.7 | 2.5a (96.9 %) | 45.7 (43.4 %) | 61.5 | 0.0 (100.0 %) | 0.0 (100.0 %) |
D21 | 68.5 %a | 4.2 % | 76.5 | 5.3a (93.0 %) | 55.7 (27.2 %) | 52.7 | 0.0 (100.0 %) | 0.0 (100.0 %) |
D28 | 58.2 %a | 2.0 % | 53.2 | 14.2a (73.4 %) | 62.0 (0.0 %) | 47.2 | 0.3 (99.3 %) | 0.2 (99.6 %) |