Department of Entomology, Faculty of Agriculture, Annamalai University, Annamalainagar-608 002, Tamil Nadu (India).
Present address: Department of Entomology, Tamilnadu Agricultural University, Coimbatore-641 003, Tamil Nadu (India).
The solvent extract of various plant parts (stem, matured leaves, tender leaves and flower) of Ipomoea carnea Jacq. (Family: Convolvulaceae) at different concentrations, viz., 1, 2 and 3% were tested for antifeedant property against the semilooper, Achaea janata Linn., a pest of castor, Ricinus communis L. All the treatments were significantly superior to control. The extract of stem at three per cent concentration was very effective and gave 88.04 per cent protection of leaf area.
