Table 1 Average number of Anopheles larvae and percentage reduction for different Bti concentrations (VectoBac® WDG) after larvicide application in open field trials from October 08th 2012 on
Average number per tub | Percentage reduction | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Early instars | Late instars | Pupae | Early instars | Late instars | |||||||||||||||||||
Day | C | T1 | T2 | T3 | T4 | C | T1 | T2 | T3 | T4 | C | T1 | T2 | T3 | T4 | T1 | T2 | T3 | T4 | T1 | T2 | T3 | T4 |
0* | 50.0 | 50.0 | 50.0 | 50.0 | 50.0 | 50.0 | 50.0 | 50.0 | 50.0 | 50.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | ||||||||
1 | 46.0 | 12.5 | 0.0 | 0.0 | 0.0 | 48.3 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 73 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
2 | 25.0 | 10.5 | 8.0 | 3.0 | 3.3 | 27.3 | 0.0 | 0.0 | 0.0 | 0.0 | 44.5 | 0.0 | 0.0 | 0.0 | 0.0 | 58 | 68 | 88 | 87 | 100 | 100 | 100 | 100 |
3 | 24.0 | 23.8 | 20.8 | 12.5 | 12.5 | 32.3 | 0.0 | 0.0 | 0.0 | 0.0 | 14.5 | 0.0 | 0.0 | 0.0 | 0.0 | 1 | 14 | 48 | 48 | 100 | 100 | 100 | 100 |
4 | 16.0 | 21.3 | 24.0 | 15.3 | 19.23 | 20.0 | 2.0 | 1.8 | 0.0 | 2.0 | 4.8 | 0.0 | 0.0 | 0.0 | 0.0 | 0 | 0 | 5 | 0 | 90 | 91 | 100 | 90 |
5 | 13.7 | 17.5 | 21.0 | 14.3 | 15.5 | 14.0 | 20.3 | 8.5 | 6.5 | 9.8 | 1.8 | 0.0 | 0.0 | 0.0 | 0.0 | 0 | 0 | 0 | 0 | 0 | 39 | 54 | 30 |
6 | 13.7 | 10.0 | 14.8 | 11.5 | 15.8 | 13.7 | 15.3 | 12.3 | 8.8 | 13.0 | 3.0 | 0.0 | 0.0 | 0.0 | 0.0 | 27 | 0 | 16 | 0 | 0 | 10 | 36 | 5 |
7* | 5.0 | 4.8 | 7.5 | 9.5 | 10.8 | 8.3 | 18.0 | 13.0 | 15.0 | 12.8 | 3.8 | 0.0 | 1.0 | 0.0 | 0.3 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
8 | 13.8 | 0.0 | 0.0 | 0.0 | 0.0 | 9.3 | 0.5 | 0.0 | 0.0 | 0.0 | 2.8 | 0.0 | 0.0 | 0.0 | 0.0 | 100 | 100 | 100 | 100 | 97 | 100 | 100 | 100 |
9 | 15.3 | 2.5 | 0.0 | 0.0 | 0.0 | 8.8 | 0.5 | 0.0 | 0.0 | 0.0 | 1.8 | 0.0 | 0.0 | 0.0 | 0.0 | 83 | 100 | 100 | 100 | 97 | 100 | 100 | 100 |
10 | 11.8 | 2.5 | 0.0 | 0.0 | 0.0 | 10.8 | 0.0 | 0.0 | 0.0 | 0.0 | 1.3 | 0.5 | 0.0 | 0.0 | 0.0 | 78 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
11 | 7.5 | 5.8 | 14.3 | 16.3 | 17.5 | 19.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.8 | 0.0 | 0.0 | 0.0 | 0.0 | 19 | 0 | 0 | 0 | 100 | 100 | 100 | 100 |
12 | 17.5 | 12.0 | 23.3 | 24.5 | 20.0 | 18.5 | 0.0 | 0.0 | 0.0 | 0.0 | 2.8 | 0.0 | 0.0 | 0.0 | 0.0 | 28 | 11 | 26 | 47 | 100 | 100 | 100 | 100 |
13 | 22.5 | 13.5 | 23.5 | 23.8 | 18.0 | 22.0 | 1.0 | 1.3 | 0.0 | 0.0 | 1.8 | 0.0 | 0.0 | 0.0 | 0.0 | 37 | 30 | 44 | 63 | 98 | 96 | 100 | 100 |
14* | 11.3 | 9.0 | 25.0 | 13.8 | 17.5 | 23.5 | 4.5 | 1.3 | 10.5 | 3.8 | 2.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0 | 0 | 0 | 0 | 90 | 96 | 73 | 89 |
15 | 4.0 | 0.0 | 0.0 | 0.0 | 0.0 | 41.5 | 0.0 | 0.0 | 0.0 | 0.0 | 1.5 | 0.0 | 0.0 | 0.0 | 0.0 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
16 | 0.0 | 14.0 | 8.8 | 8.3 | 0.0 | 46.3 | 0.0 | 0.0 | 0.0 | 0.0 | 3.8 | 0.0 | 0.0 | 0.0 | 0.0 | 0 | 0 | 0 | 0 | 100 | 100 | 100 | 100 |
17 | 0.0 | 14.0 | 6.8 | 17.8 | 11.5 | 43.3 | 0.0 | 0.0 | 0.0 | 0.0 | 3.8 | 0.0 | 0.0 | 0.0 | 0.0 | 0 | 0 | 0 | 0 | 100 | 100 | 100 | 100 |
18 | 7.3 | 12.8 | 4.8 | 17.8 | 25.5 | 38.8 | 0.0 | 0.0 | 0.0 | 0.0 | 8.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0 | 71 | 0 | 0 | 100 | 100 | 100 | 100 |
19 | 4.5 | 6.5 | 8.8 | 23.8 | 18.5 | 30.3 | 5.5 | 1.0 | 5.0 | 0.0 | 9.5 | 0.0 | 0.0 | 0.0 | 0.0 | 0 | 13 | 0 | 0 | 5 | 38 | 63 | 100 |
20 | 11.3 | 5.8 | 10.5 | 17.3 | 13.3 | 31.8 | 8.3 | 1.8 | 10.3 | 3.5 | 5.3 | 0.0 | 0.0 | 0.0 | 0.0 | 36 | 58 | 0 | 24 | 0 | 0 | 28 | 31 |
21* | 15.0 | 7.3 | 22.0 | 25.0 | 10.3 | 43.5 | 8.8 | 3.5 | 14.0 | 5.5 | 2.8 | 0.0 | 0.0 | 0.0 | 0.0 | 40 | 34 | 0 | 56 | 0 | 0 | 28 | 21 |
22 | 15.0 | 0.0 | 0.0 | 0.0 | 0.0 | 36.8 | 1.3 | 0.0 | 0.8 | 0.5 | 6.3 | 1.0 | 0.0 | 0.8 | 0.0 | 100 | 100 | 100 | 100 | 82 | 100 | 94 | 89 |
23 | 15.0 | 0.0 | 0.0 | 0.0 | 0.0 | 34.5 | 1.3 | 0.0 | 0.8 | 0.5 | 8.3 | 0.0 | 0.0 | 0.0 | 0.0 | 100 | 100 | 100 | 100 | 82 | 100 | 93 | 89 |
24 | 23.0 | 3.3 | 19.0 | 8.3 | 26.0 | 25.0 | 1.0 | 0.0 | 0.5 | 1.0 | 8.5 | 0.0 | 0.0 | 0.0 | 0.0 | 71 | 44 | 78 | 0 | 80 | 100 | 94 | 68 |
25 | 20.5 | 22.5 | 28.3 | 19.0 | 28.5 | 31.5 | 0.5 | 0.0 | 0.0 | 0.0 | 3.8 | 0.8 | 0.0 | 0.5 | 0.0 | 0 | 6 | 44 | 0 | 92 | 100 | 100 | 100 |
26 | 20.5 | 17.3 | 21.3 | 15.5 | 32.5 | 29.0 | 4.3 | 24.8 | 5.8 | 12.5 | 0.5 | 0.0 | 2.0 | 0.0 | 0.0 | 0 | 29 | 55 | 0 | 27 | 0 | 38 | 0 |
27 | 15.0 | 10.5 | 12.5 | 17.5 | 17.5 | 33.0 | 6.0 | 36.0 | 8.0 | 26.0 | 5.0 | 1.0 | 0.5 | 0.0 | 0.0 | 0 | 43 | 30 | 0 | 10 | 0 | 25 | 0 |
28 | 7.5 | 9.3 | 28.8 | 15.3 | 17.5 | 32.8 | 2.0 | 29.5 | 14.8 | 34.0 | 4.0 | 2.3 | 0.8 | 0.3 | 1.8 | 0 | 0 | 0 | 0 | 70 | 0 | 0 | 0 |