Table 1. Effect on Ae. aegypti fecundity, fertility and adult emergence when exposed before blood meal.
Effect on fecundity of Ae. aegypti females exposed 24 hr before blood meal | |||||
Exposure |
Eggs laid (average ±SEM) |
95% CI | Inhibition (%) | OR (95%CI) | p(t) |
Control | 64.1±1.5 | 57.8–70.4 | 0 | ND | ND |
0.00075 | 40.5±1.6 | 33.5–47.4 | 36.9 | 0.41(0.24–0.71) | 0.012(8.9) |
0.0075 | 38.8±1.1 | 34.2–43.3 | 39.5 | 0.37(0.21–0.65) | 0.002(23.6) |
0.075 | 37.3±3.0 | 24.3–50.2 | 41.9 | 0.33(0.19–0.59) | 0.004(16.3) |
0.75 | 35.2±1.4 | 29.5–41.1 | 45.1 | 0.30(0.17–0.54) | <0.0001(257.6) |
Effect on fertility of Ae. aegypti females exposed 24 hr before blood meal | |||||
Exposure | Eggs hatched (average ±SEM) | 95% CI | Inhibition (%) | OR (95%CI) | p(t) |
Control | 61.7±1.7 | 54.5–68.8 | 0 | ND | ND |
0.00075 | 32.8±1.5 | 26.2–39.3 | 46.9 | 0.28(0.16–0.51) | 0.009(10.5) |
0.0075 | 27.3±0.8 | 23.7–30.9 | 55.7 | 0.19(0.10–0.36) | 0.002(25.5) |
0.075 | 26.4±2.1 | 17.6–35.3 | 57.1 | 0.18(0.09–0.34) | 0.0002(69.9) |
0.75 | 23.6±1.5 | 17.3–29.8 | 61.8 | 0.15(0.08–0.29) | 0.0003(54.0) |
Effect on adult emergence of Ae. aegypti females exposed 24 hr before blood meal | |||||
Exposure |
Emergence (average ±SEM) |
95% CI | Inhibition (%) | OR (95%CI) | p(t) |
Control | 50.1±2.5 | 39.5–60.8 | 0 | ND | ND |
0.00075 | 20.7±0.7 | 17.7–23.6 | 58.8 | 0.18 (0.09–0.36) | 0.008(11.1) |
0.0075 | 16.6±0.2 | 15.7–17.4 | 67.0 | 0.12 (0.05–0.25) | 0.005(13.7) |
0.075 | 13.5±1.3 | 8.0–19.1 | 73.0 | 0.08 (0.03–0.18) | 0.001(30.2) |
0.75 | 10.4±0.4 | 8.5–12.3 | 79.2 | 0.04 (0.02–0.10) | 0.002(19.3) |
ND- not determined; CI-confidence interval; OR-odds ratio; SEM-standard error of mean.