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Mortalities of L. natalensis snails exposed to different concentrations of A. aspera aqueous leaf extract for 24 h
| Concentration (ppm) | Exposed snails | Dead snails | Mortality rate |
|---|---|---|---|
| 0 | 30 | 0 | 0% |
| 25 | 30 | 0 | 0% |
| 50 | 30 | 3 | 10% |
| 75 | 30 | 17 | 56.7% |
| 100 | 30 | 29 | 93.3% |
| 200 | 30 | 30 | 100% |
| 400 | 30 | 30 | 100% |
