Groundnut (Arachis hypogaea L.) is an important legume crop of tropical and sub-tropical areas of the world. This crop suffers from several diseases but collar rot caused by Aspergillus niger van Teighem is one of the most important seed and soil borne diseases causing huge economic loss in India and abroad. Field experiment was conducted to see the interactive effect of salicylic acid through seed soaking with different concentrations (50,100,150 and 200 ppm) were prepared by dissolving in water and Foliar application of different concentrations of salicylic acid (50,100 and 150 ppm) were also provided one each seed soaked treatment at 20 days after sowing. The lowest disease incidence (20.70%) and highest pod yield (22.55 q/ha) were recorded by soaking the seeds with salicylic acid with 200 ppm and foliar application of salicylic acid with 150 ppm and next best was seed soaking of salicylic acid with 150 ppm and foliar application of salicylic acid with 100.Conclusively, seed soaking of salicylic acid 200 ppm and foliar application of salicylic acid with 150 ppm 20 DAS can be a better option to control disease effectively for getting higher monetary returns.