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%
25
50
3
10%
75
17
56.7%
100
29
93.3%
200
100%
400