Table 3: Molluscicidal activities of Azadiractha indica at different concentrations and time.
Exposure time (hrs) | ||||||
Treatment(mg/l) | 8 | 16 | 24 | 32 | 40 | 48 |
Control | 0.00 ± 0.00a | 0.00 ± 0.00a | 0.00 ± 0.00a | 0.00 ± 0.00a | 0.00 ± 0.00a | 0.00 ± 0.00a |
0.4 | 0.00 ± 0.00a | 0.00 ± 0.00a | 0.00 ± 0.00a | 0.00 ± 0.00a | 10.00 ± 0.00b | 20.00 ± 0.00b |
0.8 | 0.00 ± 0.00a | 0.00 ± 0.00a | 10.00 ± 0.25b | 10.00 ± 0.25b | 10.00 ± 0.25b | 20.00 ± 0.55b |
1.2 | 0.00 ± 0.00a | 10.00 ± 0.22b | 10.00 ± 0.00b | 20.00 ± 0.31c | 20.00 ± 0.31b | 30.00 ± 0.41c |
1.6 | 10.00 ± 0.28b | 10.00 ± 0.23b | 20.00 ± 0.15c | 20.00 ± 0.25c | 20.00 ± 0.45b | 40.00 ± 0.77d |
2.0 | 10.00 ± 0.21b | 20.00 ± 0.56c | 30.00 ± 0.15d | 30.00 ± 0.63d | 40.00 ± 0.48c | 50.00 ± 0.85e |
Each value is a mean ± standard error of four replicate. Means followed by the same letter along the column are significantly different (P < 0.05) using Duncan's New Multiple Range Test.