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Table 2 Mortalities of L. natalensis snails exposed to different concentrations of A. aspera aqueous leaf extract for 24 h

From: Molluscicidal effect of Achyranthes aspera L. (Amaranthaceae) aqueous extract on adult snails of Biomphalaria pfeifferi and Lymnaea natalensis

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%