Vol. 12, Issue 11 (2023)

Author(s):
Raut Pooja and Ingle RW

Abstract:
Ralstonia solanacearum is a devastating plant affecting chilli pepper plants worldwide. In this study, we investigated the inhibitory potential of various bioagents, including Bacillus subtilis, Pseudomonas solanacearum, Bacillus megaterium, Trichoderma viride and Trichoderma harzianum, against Ralstonia solanacearum in vitro. Our results revealed varying degrees of inhibition among these bioagents. Among the tested bioagents, Bacillus megaterium exhibited the highest inhibitory activity, with an impressive 01.20 mm inhibition zone. In contrast, both fungal bioagents Trichoderma viride and Trichoderma harzianum showed no discernible inhibition (00.00 mm). These findings suggest that Bacillus megaterium holds promise as a potential biocontrol agent for managing Ralstonia solanacearum in chilli crop. Further research is warranted to explore the mechanisms underlying the inhibitory effects and the practical applications of these bioagents in disease management strategies.