Treatment | Knockdown time (minutes) | Synergy ratios | ||
---|---|---|---|---|
 | (KT50) | (KT95) | (KT50) | (KT95) |
Permethrin alone | 26 (24-27) | 49 (45-54) | Â | Â |
Permethrin + PBO | 15 (13-16) | 23 (21-25) | 1.7 | 2.1 |
Permethrin + DEF | 20 (18-22) | 33 (30-37) | 1.3 | 1.5 |
Permethrin + PBO + DEF | 18 (16-20) | 28 (26-32) | 1.4 | 1.8 |