Vol. 12, Issue 3 (2023)

Author(s):
Vijay Shree Gahlot, Data Ram Kumhar, Ashok Kumar Meena, S Dilip Kumar Reddy and Devender Kumar

Abstract:
Cluster bean (Cyanosis tetragonoloba L.) Taub is a major leguminous crop in India's dry and semi-arid regions during the Kharif season. Cluster bean stem rot, caused by Sclerotium rolfsii Sacc., has become a severe concern in recent years, resulting in yield losses of 50-70 percent, depending on the severity of the disease. A wide range of chemical pesticides currently available and the continuous use of these pesticides effect the food substance of crop as well as their texture and the performance of soil in order to control all these vulnerabilities. In this study, evaluated the effects of bio-agents and plant extracts against the pathogen. In the case of bioagents, maximum growth inhibition (70.78%) was recorded in T. harzianum and P. fluorescens (50.78%) among fungal and bacterial bioagents respectively. In comparison to 5, 10, and 15%, the 20 percent concentration of plant extracts was most effective in preventing fungus development. Citrullus colocynthis, Azadirachta indica, and Datura stramonium extracts were considerably superior in inhibiting fungal growth at 20% concentration, with 60.50 per cent, 53.77 per cent, and 52.29 per cent, respectively. Using bioagents and plant extracts to prevent cluster bean stem rot disease and its catastrophic consequences is both ecologically benign and effective. The bioagents not only inhibits the disease, but it also promotes healthy crop growth.