Molluscicidal Activity of the Custard Apple (<i>Annona squamosa</i>L.) Alone and in Combination with Other Plant Derived Molluscicides

Abstract

ABSTRACT Molluscicidal activity of leaves, bark, and seed of custard apple (Annona squamosa L.) against the snail Lymnaea acuminata was studied. Highest molluscicidal activity of the plant was observed in seed extracts. Acetogenins extracted from the seed of the plant were more toxic than synthetic pesticides. Combinations of equal parts custard apple seed powder with oil from cedar, Cedrus deodara Roxh., and from neem, Azctdirachta indica A. Juss., was more toxic than the individual components of these plants.