Vol. 9, Special Issue 12, Part E (2025)

Chickpea is a rabi crop, mainly grown in the areas of water scarcity which is attacked by various soil borne pathogens where collar rot disease caused by Sclerotium rolfsii Sacc is a major concern causing higher yield losses. To suppress the pathogen, naturally available Trichoderma spp were isolated from the chickpea growing areas of Andhra Pradesh and in vitro studies were performed to identify the antagonistic activity using thirteen Trichoderma isolates and best antagonist were identified based on qualitative parameters such as zone of inhibition, overgrowth potential, lysis and sporulation. Based on these observations T2, T3, T5 and T9 were identified as a potential suppressors for collar rot pathogen.