Table 4.
Results obtained for Culex quinquefasciatus (n = 42 nights) in the experimental huts in Moshi
| Hut Treatment | Unwashed control | Washed control | Unwashed LLIB | Washed LLIB | Unwashed ITB | Washed ITB | Olyset net |
|---|---|---|---|---|---|---|---|
| Initial dose of permethrin |
0 mg/m2 |
|
2000 mg/m2 |
2000 mg/m2 |
500 mg/m2 |
500 mg/m2 |
1000 mg/m2 |
| Number of washes |
0 |
5 |
0 |
5 |
0 |
5 |
0 |
| % volunteer body cover (95% CI) |
81 (77–85) |
83 (80–87) |
79 (74–83) |
78 (73–82) |
79 (72–85) |
79 (72–85) |
100 |
|
Total females caught |
62 |
79 |
59 |
53 |
60 |
58 |
62 |
| Females caught/night |
2 |
2 |
1 |
1 |
1 |
1 |
2 |
|
Total females in verandah and exit traps |
25 |
27 |
34 |
25 |
31 |
26 |
50 |
| Exophily (%) |
40ac |
34a |
58c |
47ac |
52ac |
45ac |
81b |
| 95% Confidence limits |
25-57 |
22-49 |
42-72 |
36-59 |
35-68 |
28-63 |
66-90 |
|
Total females blood fed |
45 |
67 |
36 |
27 |
29 |
22 |
7 |
| Blood fed (%) |
73a |
85b |
61a |
51ad |
48ad |
38cd |
11e |
| 95% Confidence limits |
57-84 |
74-91 |
43-76 |
36-65 |
34-63 |
25-53 |
5-25 |
| Blood feeding inhibition (%) |
- |
- |
16 |
40 |
34 |
55 |
85 |
|
Total females dead |
0 |
1 |
6 |
5 |
5 |
7 |
4 |
| Overall mortality (%) |
0a |
1b |
10bcd |
9bcd |
8d |
12cd |
6bd |
| 95% Confidence limits |
- |
0-10 |
4-24 |
3-25 |
3-21 |
6-23 |
2-17 |
| Corrected for control (%) |
- |
1 |
10 |
9 |
8 |
12 |
6 |
| Unfed mortality |
0 |
0 |
8 (1–53) |
26 (9–54) |
15 (4–43) |
16 (6–37) |
19 (10–34) |
| Blood fed mortality | 0 | 0 | 0 | 4 (0–25) | 0 | 0 | 0 |
Numbers in the same row sharing a letter superscript do not differ significantly (P > 0.05).