Table 1 Percentages of male and female pupae (mean ± standard error) of Ae. aegypti and Ae. albopictus, separated at different pore sizes by the standard sieving method
Species (N = 1500) | Percentage of male and female pupae retained | |||
|---|---|---|---|---|
Pore size, mm | Percentage of retained pupae | Pupal mortality (%) | ||
Male pupae in sieve (%) | Female pupae in sieve (%) | |||
Ae. aegypti (M: 600; F: 900) | < 1.12 | 26 ± 2.5 (n = 156) | 5 ± 1.0 (n = 35) | 0 |
1.12 | 73 ± 3.5 (n = 438) | 28 ± 2.5 (n = 196) | 4 ± 0.5 (n = 60) | |
1.25 | 1 ± 0.2 (n = 6) | 63 ± 3.6 (n = 441) | 3 ± 0.8 (n = 45) | |
1.4 | 0 | 4 ± 0.8 (n = 28) | 0 | |
1.6 | 0 | 0 | 0 | |
Ae. albopictus (M: 700; F: 800) | < 1.12 | 24 ± 2.2 (n = 168) | 4 ± 0.5 (n = 24) | 0 |
1.12 | 69 ± 3.5 (n = 483) | 27 ± 2.6 (n = 162) | 5 ± 0.4 (n = 75) | |
1.25 | 7 ± 1.0 (n = 49) | 66 ± 4.0 (n = 396) | 4 ± 0.4 (n = 60) | |
1.4 | 0 | 3 ± 0.4 (n = 18) | 0 | |
1.6 | 0 | 0 | 0 | |