Table 1 Susceptibility of S. damnosum larvae at various concentrations of temephos
Temephos concentration (mg/l) | Number of larvae tested | Average raw mortality% (SD) | Average adjusted mortality% (SD) |
|---|---|---|---|
0.5 | 47 | 100 (0) | 100 (0) |
0.25 | 84 | 100 (0) | 100 (0) |
0.1 | 130 | 100 (0) | 100 (0) |
0.05 | 203 | 98.7 (1.9) | 98.6 (2.1) |
0.025 | 120 | 95.5 (4.2) | 95.0 (4.7) |
0.01 | 355 | 76.6 (14.0) | 80.0 (15.1) |
0.005 | 152 | 58.1 (34.2) | 43.9 (40.5) |
0.0025 | 252 | 44.2 (24.5) | 39.7 (24.8) |
0.001 | 187 | 30.7 (2.1) | 23.4 (8.1) |
0.00025 | 90 | 12 (7.1) | 8.0 (1.4) |
0 (Control) | 577 | 9.8 (4.9) | – |