Table 3. Proportion of total engorged RVFV mosquito (blood fed+gravid) of total captures recorded in control traps (CO2 only) and combined lures having CO2 and optimal single compounds/blends evaluated and corresponding catch indices.
Treatment | Optimal dose (mg/ml) | Proportion (n) | Catch index | P-values |
Control (CO2 only) | 0.05 (210) | 1 | - | |
Heptanal | 2 | 0.19 (325) | 3.58 | <0.001 |
Octanal | 0.5 | 0.14 (291) | 2.69 | 0.002 |
Nonanal | 0.1 | 0.08 (320) | 1.43 | 0.271 |
Decanal | 0.1 | 0.09 (299) | 1.66 | 0.152 |
Blend A | 0.08 (237) | 1.45 | 0.326 | |
Blend B | 0.07 (268) | 1.28 | 0.523 | |
Blend C | 0.13 (243) | 2.51 | 0.007 | |
Blend D | 0.07 (237) | 1.29 | 0.518 | |
Blend E | 0.15 (212) | 2.88 | 0.001 | |
Blend F | 0.14 (494) | 2.63 | 0.001 |
n in parenthesis represents total mosquito captures recorded per treatment. P-values based on pair-wise comparison to CO2 following chi-square goodness-of-fit in R 2.11.0 software.