Vol. 12, Issue 10 (2023)

Author(s):
Raut Pooja and Ingle RW

Abstract:
Chilli (Capsicum annuum L.) is a widely cultivated and economically important crop globally, susceptible to various pathogens, with Ralstonia solanacearum being a significant bacterial pathogen responsible for causing devastating losses. Chemical pesticides have traditionally been employed to combat this pathogen, but concerns over environmental safety and resistance development necessitate the exploration of alternative control strategies. This study focuses on the in vitro evaluation of botanical extracts as potential biocontrol agents against Ralstonia solanacearum in chilli. A diverse range of botanical extracts, derived from various plant species viz., Neem, Marigold, Datura, Bael, Kanher and Tulsi, were prepared at concentrations 5%, 10% and 20% and tested for their inhibitory effects on R. solanacearum growth and pathogenicity. The experimental results revealed promising antimicrobial activity of botanical extracts of Marigold and Nerium at 20% concentration against R. solanacearum. These botanicals demonstrated significant inhibition of bacterial growth. The experimental results revealed promising antimicrobial activity of several botanical extracts against R. solanacearum. This research highlights the potential of botanical extracts as eco-friendly and sustainable alternatives to chemical pesticides for managing R. solanacearum infections in chilli crops.