Table 4.
Pupal productivity and other features of different water containers
Container type | N | Inside the house (%) | Containing temephos (<2 months old)(%) | Covered(%) | Used for drinking and cooking water (%) | Container index (%) | Pupal productivity |
---|---|---|---|---|---|---|---|
Concrete tanks | 9358 | 19.0 | 40.4 | 8.2 | 1.8 | 8.0 |
N = 4216 mean = 0.451 SD = 5.263 50.7% |
Barrels/drums | 16,717 | 23.6 | 17.7 | 35.0 | 12.2 | 4.4 |
N = 1902 mean = 0.114 SD = 1.987 22.9% |
Plastic tanks | 3369 | 5.1 | 33.3 | 85 | 4.0 | 1.9 |
N = 107 mean = 0.032 SD = 0.536 1.3% |
Plastic bottles | 1557 | 68.9 | 1.2 | 81.4 | 70.5 | 0.7 |
N = 11 mean = 0.007 SD = 0.154 0.1% |
Buckets | 8729 | 27.0 | 5.1 | 25 | 10.0 | 2.5 |
N = 472 mean = 0.054 SD = 1.181 5.6% |
Other water storage containers | 4601 | 18.2 | 7.0 | 9.3 | 9.9 | 4.6 |
N = 882 mean = 0.19 SD = 2.52 10.6% |
Discarded articles | 618 | 9.0 | 24.4 | N/A | N/A | 9.8 |
N = 171 mean = 0.277 SD = 2.94 2.0% |
Plant- and flowerpots | 204 | 38.4 | 5.1 | N/A | N/A | 14.0 |
N = 88 mean = 0.431 SD = 2.507 1.06% |
Tyres | 213 | 32.3 | 2.1 | N/A | N/A | 7.2 |
N = 463 mean = 2.17 SD = 14.14 5.6% |
All containers | 45,366 | 23.0 | 19.5 | 4.7 |
N = 8312 mean = 0.183 SD = 3.001 |
Pupa productivity: N = total number of pupas for all containers of that type; mean = mean number of pupae per container; SD = standard deviation of mean; percentage = (total number of pupae from that container type/overall total number of pupae) × 100