Abstract
Field evaluation of pongamia oil soap against Earias vitella and Helicoverpa armigera infesting okra was carried out during 2018-19 at the Instructional farm in College of Agriculture, Padannakkad. The treatments consisted of 0.6, 1 and 2% pongamia oil soap, Neem oil soap (0.6%); soap solution (0.5%); quinalphos (0.05%) and control (water). Fourteen days after the third application the shoot damage was found lowest in quinalphos 25EC 0.05% (7.32) followed by pongamia oil soap 2% (12.86) and fruit damage was found lowest in quinalphos 25EC 0.05% (6.41) followed by pongamia oil soap 2% (9.60). The reduction in fruit and shoot damage may be due to the feeding deterrency of pongamia oil which remained effective for seven days and thereafter declined.
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