Reproduction of Lymnaea acuminata fed to bait containing binary combination of amino acids with molluscicide

Effect of sublethal (20% and 60% of 24h LC 50 ) feeding of molluscicides (eugenol, ferulic acid, umbelliferone and limonene) in bait containing binary combination (1:1 ratio) of amino acids (valine, aspartic acid, lysine and alanine) on the, hatchability and survival of young snails of Lymnaea (Radix) acuminata (Lamark) was studied. It was observed that the different amino acid combinations of bait formulation with molluscicides significantly reduced the reproductive capacity (fecundity, hatchability and survival of young snails) of the snail Lymnaea acuminata. Maximum in reduction of fecundity was observed in valine + aspartic acid + ferulic acid (28.89% of control). In withdrawal group there is a significant recovery observed in all feeded group (85.95% of control).