Table 3.
MM-X trap catches (n = 200 released per night) of An. gambiae s.s. (Mbita strain) for 4 trap nights when baited with (A) NH3(0.1, 1, 10 or 100%), (B) CO2(500 ml/min), (C) 1-octen-3-ol, (D) foot odour (FO; from BNN) + NH3(10%), (E) foot odour (FO; from BNN) + CO2(500 ml/min) + NH3. Controls were unbaited traps.
| Expt. | Day | NH3 (0.1%) | Control | NH3 (1.0%) | Control |
| A | 1 | 18 | 1 | 29 | 3 |
| 2 | 11 | 1 | 15 | 3 | |
| 3 | 7 | 1 | 17 | 2 | |
| 4 | 5 | 2 | 18 | 1 | |
| F = 19.2; P < 0.05 | F= 69.4; P < 0.001 | ||||
| NH3 (10%) | Control | NH3 (100%) | Control | ||
| 1 | 31 | 2 | 22 | 3 | |
| 2 | 11 | 1 | 14 | 2 | |
| 3 | 25 | 2 | 11 | 5 | |
| 4 | 16 | 2 | 3 | 2 | |
| F = 1396.8; P < 0.001 | F= 6.58; ns | ||||
| B, C | CO2 | Control | 1-octen-3-ol | Control | |
| 1 | 122 | 1 | 1 | 1 | |
| 2 | 119 | 1 | 5 | 1 | |
| 3 | 127 | 1 | 2 | 4 | |
| 4 | 71 | 0 | 20 | 5 | |
| F = 7977.3; P < 0.001 | F = 11.9; ns | ||||
| D, E | FO+ NH3 | Control | FO+NH3+CO2 | Control | |
| 1 | 120 | 1 | 190 | 5 | |
| 2 | 73 | 1 | 205 | 2 | |
| 3 | 82 | 0 | 210 | 0 | |
| 4 | 65 | 3 | 118 | 0 | |
| F = 296.6; P < 0.001 | F= 81.9; P < 0.001 | ||||