Table 1. Residual fertility and induced sterility of HC and IHC Aedes albopictus males at different release ratios in the small cages.
| Male: Male | Ratio (Sterile: Fertile) | Fertility (%) (Mean ± 95% CI) (Number of eggs estimated) | IS (%) (Mean ± SD) |
|---|---|---|---|
| HC: GUA | 0:1 | 88.1 ± 6.0 (3810) a | - |
| 1:1 | 52.9 ± 11.4 (4019) b | 39.8 ± 6.1 a | |
| 5:1 | 16.2 ± 3.7 (3793) c | 81.6 ± 1.9 b | |
| 10:1 | 10.7 ± 8.4 (4215) cd | 87.8 ± 4.5 b | |
| 1:0 | 0.5 ± 0.2 (4451) d | - | |
| IHC: GUA | 0:1 | 90.3 ± 4.3 (2887) A | - |
| 1:1 | 62.0 ± 13.6 (3397) B | 31.3 ± 6.9 A | |
| 5:1 | 26.7 ± 11.8 (3413) C | 70.5 ± 6.0 B | |
| 10:1 | 9.6 ± 7.3 (3442) D | 89.3 ± 3.8 C | |
| 1:0 | 0.2 ± 0.2 (2768) D | - |
CI: Confidence interval.
Within column, values followed by different lowercase letters or capital letters were statistically different in the same treatment cage using ANOVA analysis and Tukey hoc post-test (P<0.05). Three replicates were performed of all treatments.
IS: Induced sterility, calculated as 100% minus the residual fertility value, which was calculated from Ho / Hn, where Ho was the observed egg hatch rate from each experimental cage and Hn was the hatch rate from eggs of GUA females mated with fertile males.