The study was conducted at the New Developmental Farm (NDF), The University of Agriculture, Peshawar during the summer and autumn seasons of 2021, to find the most effective ethanol based plant extracts in comparison with a synthetic insecticide for the management of brinjal borer (Leucinodes Orbonalis G.) in brinjal (Solanum melongena L.). The results revealed that all treatments, although varied in their efficacies, caused significant reductions in L. orbonalis infestation and increased brinjal yield when compared to the control. confidor was found the most effective treatment with the lowest mean shoot and fruit infestation (0.2% and 4.1%) respectively and with highest mean brinjal yield (14771 kg ha^-1).  This was followed by plant extracts (notably parthenium extact 5% and bakain extract 5%). Ginger rhizome extract 5 % and eucalyptus extract 5% were the least effective botanicals having  (1.1 and 1.2 %) shoot and (8.8 and 8.1 %) fruit infestation and yields of (10333 kg ha^-1and 11031 kg ha^-1) respectively. Moreover, the cost benefit ratio (CBR) value in both seasons was highest for confidor (12.4 and 13.7), followed by parthenium extact 5% (8.0 and 8.3), bakain extract 5% (7.2 and 7.1) and being lowest for ginger rhizome extract.

Key words: Plant extracts, synthetic insecticide, management, brinjal borer, cost benefit ratio.