Table 2 Average number of Anopheles larvae and percentage reduction for different Bti concentrations (VectoBac® WDG) after larvicide application in open field trials from December 26th 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* | 35.0 | 35.0 | 35.0 | 35.0 | 35.0 | 35.0 | 35.0 | 35.0 | 35.0 | 35.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | ||||||||
1 | 35.0 | 0.0 | 0.0 | 0.0 | 0.0 | 34.0 | 0.0 | 0.0 | 0.0 | 0.0 | 1.8 | 0.0 | 0.0 | 0.0 | 0.0 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
2 | 30.5 | 2.3 | 0.0 | 0.0 | 0.0 | 25.0 | 0.0 | 0.0 | 0.0 | 0.0 | 8.0 | 0.0 | 0.0 | 0.0 | 0.0 | 93 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
3 | 19.8 | 3.0 | 3.8 | 7.5 | 0.0 | 25.8 | 0.0 | 0.0 | 0.0 | 0.0 | 10.5 | 0.0 | 0.0 | 0.0 | 0.0 | 85 | 81 | 62 | 100 | 100 | 100 | 100 | 100 |
4 | 18.8 | 11.3 | 6.5 | 12.3 | 0.0 | 23.0 | 2.0 | 0.0 | 0.0 | 0.0 | 6.3 | 0.0 | 0.0 | 0.0 | 0.0 | 40 | 65 | 35 | 100 | 91 | 100 | 100 | 100 |
5 | 21.3 | 14.8 | 11.8 | 12.8 | 20.5 | 15.8 | 2.5 | 2.0 | 0.0 | 12.3 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 31 | 45 | 40 | 4 | 84 | 100 | 87 | 100 |
6 | 17.0 | 12.5 | 15.5 | 14.0 | 14.8 | 18.5 | 3.5 | 2.0 | 2.8 | 5.8 | 6.0 | 0.0 | 0.0 | 0.0 | 0.0 | 26 | 9 | 18 | 13 | 81 | 89 | 85 | 69 |
7* | 9.5 | 7.3 | 14.8 | 9.8 | 10.3 | 17.3 | 10.3 | 4.5 | 5.8 | 8.8 | 8.5 | 0.0 | 0.0 | 0.0 | 0.0 | 24 | 0 | 0 | 0 | 41 | 74 | 67 | 49 |
8 | 6.3 | 0.5 | 0.0 | 0.0 | 0.0 | 15.0 | 0.0 | 0.0 | 0.0 | 0.0 | 5.8 | 0.0 | 0.0 | 0.0 | 0.0 | 90 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
9 | 7.3 | 0.5 | 0.0 | 0.0 | 0.0 | 9.5 | 0.0 | 0.0 | 0.0 | 0.0 | 3.8 | 0.0 | 0.0 | 0.0 | 0.0 | 91 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
10 | 5.0 | 0.5 | 0.0 | 0.0 | 0.0 | 7.8 | 0.0 | 0.0 | 0.0 | 0.0 | 1.8 | 0.0 | 0.0 | 0.0 | 0.0 | 87 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
11 | 18.5 | 19.0 | 0.0 | 7.8 | 17.3 | 6.5 | 0.0 | 0.0 | 0.0 | 0.0 | 3.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0 | 100 | 59 | 14 | 100 | 100 | 100 | 100 |
12 | 20.8 | 17.0 | 4.0 | 13.0 | 19.3 | 6.5 | 1.8 | 0.0 | 0.0 | 1.0 | 4.3 | 0.0 | 0.0 | 0.0 | 0.0 | 0 | 88 | 39 | 14 | 55 | 100 | 100 | 70 |
13 | 17.8 | 11.3 | 6.5 | 12.3 | 13.3 | 6.3 | 7.5 | 0.0 | 1.0 | 4.5 | 1.8 | 0.0 | 0.0 | 0.0 | 0.0 | 17 | 76 | 33 | 31 | 0 | 100 | 52 | 0 |
14* | 12.3 | 5.5 | 6.5 | 9.8 | 11.3 | 7.0 | 10.3 | 1.3 | 2.8 | 11.5 | 3.0 | 0.0 | 0.0 | 0.0 | 0.0 | 41 | 66 | 22 | 15 | 0 | 32 | 0 | 0 |
15 | 5.5 | 0.0 | 0.0 | 0.0 | 0.0 | 9.0 | 0.0 | 0.0 | 0.0 | 0.0 | 3.8 | 0.0 | 0.0 | 0.0 | 0.0 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
16 | 1.0 | 0.0 | 0.0 | 0.0 | 0.0 | 7.8 | 0.0 | 0.0 | 0.0 | 0.0 | 5.3 | 0.0 | 0.0 | 0.0 | 0.0 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
17 | 8.0 | 0.0 | 0.0 | 1.3 | 0.0 | 5.5 | 0.0 | 0.0 | 0.0 | 0.0 | 3.5 | 0.0 | 0.0 | 0.0 | 0.0 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
18 | 18.3 | 17.3 | 10.5 | 9.8 | 5.0 | 1.0 | 0.0 | 0.0 | 0.0 | 0.0 | 5.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0 | 0 | 33 | 70 | 100 | 100 | 100 | 70 |
19 | 17.5 | 18.3 | 10.5 | 9.8 | 8.5 | 1.8 | 2.5 | 0.0 | 0.0 | 0.0 | 0.8 | 0.0 | 0.0 | 0.0 | 0.0 | 0 | 0 | 30 | 47 | 2 | 100 | 100 | 100 |
20 | 14.8 | 13.5 | 17.0 | 11.3 | 4.3 | 6.0 | 7.3 | 1.8 | 0.5 | 2.3 | 0.5 | 0.0 | 0.0 | 0.0 | 0.0 | 0 | 0 | 4 | 69 | 17 | 0 | 79 | 77 |
21* | 8.0 | 8.5 | 16.5 | 10.5 | 2.3 | 8.3 | 12.3 | 2.5 | 1.5 | 3.3 | 3.3 | 0.0 | 0.0 | 0.0 | 0.0 | 0 | 0 | 0 | 69 | 0 | 0 | 54 | 76 |
22 | 7.0 | 0.0 | 0.0 | 0.0 | 0.0 | 4.8 | 0.8 | 0.0 | 0.0 | 0.0 | 3.0 | 1.0 | 0.0 | 0.8 | 0.0 | 100 | 100 | 100 | 100 | 89 | 100 | 100 | 100 |
23 | 11.0 | 0.0 | 0.0 | 0.0 | 0.0 | 6.8 | 0.8 | 0.0 | 0.0 | 0.0 | 0.8 | 0.0 | 0.0 | 0.0 | 0.0 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
24 | 12.0 | 0.0 | 0.0 | 4.0 | 0.0 | 4.8 | 0.8 | 0.0 | 0.0 | 0.0 | 3.0 | 0.0 | 0.0 | 0.0 | 0.0 | 100 | 100 | 75 | 100 | 89 | 100 | 100 | 100 |
25 | 14.8 | 8.0 | 0.0 | 6.0 | 0.0 | 4.5 | 0.0 | 0.0 | 0.0 | 0.0 | 1.3 | 0.8 | 0.0 | 0.0 | 0.0 | 49 | 100 | 69 | 100 | 100 | 100 | 100 | 100 |
26 | 13.5 | 14.8 | 0.0 | 9.8 | 5.0 | 5.0 | 0.0 | 0.0 | 1.0 | 0.0 | 1.3 | 0.0 | 0.0 | 0.0 | 0.0 | 0 | 100 | 45 | 0 | 100 | 100 | 0 | 100 |
27 | 13.0 | 10.0 | 2.0 | 11.5 | 4.8 | 6.3 | 3.8 | 0.0 | 1.0 | 0.3 | 3.3 | 0.0 | 0.0 | 0.0 | 0.0 | 28 | 93 | 33 | 0 | 60 | 100 | 12 | 90 |
28 | 12.0 | 8.3 | 5.8 | 10.3 | 2.8 | 3.8 | 8.5 | 1.3 | 2.5 | 2.3 | 3.3 | 0.8 | 0.8 | 0.0 | 0.0 | 35 | 77 | 35 | 19 | 0 | 0 | 0 | 0 |