Table 2 Mean number of larvae from a natural population of Anopheles gambiae s.l. that oviposited in clay pots filled with distilled water (DW), and distilled water + autoclaved soil (AC), distilled water + untreated soil (BS) and distilled water + nonane in a dual choice set-up in the field
Oviposition substrate | Pot positivitya | Quantity of larvae in pots | OAI | p-value | ||
|---|---|---|---|---|---|---|
No. | LDI | No. (%) | Median ± SE | |||
DW + AC soil | 2 | 3.5 | 7 (1.7) | 0.0 ± 0.2 | 1 | 0.18 |
DW | 0 | 0 | 0 (0) | 0 | ||
DW + AC soil | 2 | 5.5 | 11 (0) | 0.0 ± 0.3 | 0.9 | 0.0001 |
DW + BS soil | 22 | 11.6 | 254 (100) | 4.5 ± 1.5 | ||
DW + AC soil | 3 | 5.3 | 16 (0) | 0.4 ± 0.3 | 0.9 | 0.0001 |
DW + AC soil + nonane | 32 | 15.7 | 503 (100) | 12.0 ± 2.0 | ||
DW + BS soil | 14 | 23 | 322 (42.8) | 8.1 ± 2.3 | 0.1 | 0.097 |
DW + AC soil + nonane | 22 | 19.5 | 429 (57.2) | 11.0 ± 2.1 | ||
DW + BS soil | 24 | 11.5 | 276 (21.7) | 7.0 ± 1.3 | 0.6 | 0.0001 |
DW + BS soil + nonane | 38 | 25.6 | 972 (78.3) | 23.5 ± 2.5 | ||