Stored products host a wide array of insect, the damage of which may amount up to 10-50% in a non-modern storage system. Sitophilus oryzae spp. Can be a major pest and is associated with many stored pulses. Experiments were conducted under laboratory conditions to study the oviposition deterrent and anti feedant activity of different plant extracts viz., Neem (Azadirachta indica), Pungam (Pongamia glabra),Pudina (Mentha arvensis) and Lantana (Lantana camara) on Rice weevil, Sitophilus oryzae. The results obtained from the experiments are summarized below. The 10% aqueous solution of different plant extracts, registered varied levels of mortality in Sitophilus oryzae in two different hosts studied viz., Sorghum and green gram. Neem showed strongest antifeedant activity on S.oryzae with mean food consumption of 0.13g. This was followed by Pudina with mean food consumption of 0.35g followed by Lantana with 0.48g and Pungam 0.56g.The oviposition deterrence percentage for S.oryzae was found to be the highest in Neem(75.50%) followed by Pudina, Lantana showed values of 63.50,62.50 per cent, respectively in Sorghum and green gram.