Table 2 Factors affecting presence of mosquito larvae in breeding habitats on Nyabondo plateau, western Kenya
From: Efficacy of neem chippings for mosquito larval control under field conditions
Factor | Factor level | Frequency (n) | Percentage | Chi-square | df | Significance |
|---|---|---|---|---|---|---|
Habitat stability | Permanent | 214 | 63.13 | Â | Â | Â |
| Â | Temporary | 125 | 36.87 | 22.317 | 1 | 0.000 |
Habitat origin | Man-made | 326 | 96.17 | Â | Â | Â |
| Â | Natural | 13 | 3.83 | 0.873 | 1 | 0.350 |
Water origin | Surface run-off | 279 | 82.30 | Â | Â | Â |
| Â | Underground | 60 | 17.70 | 5.254 | 1 | 0.022 |
Habitat size | <10 | 45 | 13.27 | Â | Â | Â |
| Â | >100 | 50 | 14.75 | Â | Â | Â |
| Â | 10 - 100 | 244 | 71.98 | 9.822 | 2 | 0.007 |
Water movement | No | 301 | 88.79 | Â | Â | Â |
| Â | Yes | 38 | 11.21 | 0.768 | 1 | 0.381 |
Vegetation | Absent | 149 | 43.95 | Â | Â | Â |
| Â | Present | 190 | 56.05 | 11.547 | 1 | 0.001 |