Two plants reported as molluscicides have been tested against the snail Pomacea canaliculata under field conditions. The molluscicide activity of the formulation Sapindus saponaria L. (100%) was compared with the mixture of Sapindus saponaria L. and Solanum mammosum L. (50:50, w/w) using different concentrations (10, 50, 100, 200, 400 mg.L−1). LC50 and LC90 values were calculated using Probit Model. Sapindus saponaria L. (100%) showed higher molluscicide activity and reported a LC50 value of 66.6 mg.L-1. These results have not been informed in the literature.
Key words: Sapindus saponaria L, Solanum mammosum L., rice, LC50
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