The botanicals used in this experiment were, Ocimum sanctum L. (Lamiaceae), Azadirachta indica A. Juss. (Meliaceae),Calotropis gigantea R. Br. (Asclepidaceae), Nicotina tabacum Linn. (Solanaceae ) and Alium sativum Linn. (Amaryllidaceae). Leaves of Ocimum sanctum (Tulasi) and Azadiracta indica (Neem) and Calotropis sp. were collected from the home gardens of Batticaloa. The dried leaves of Tobacco (Nicotina tabacum) and Garlic cloves were bought from local market.