Antimicrobial potential of aqueous extracts of selected plant species against crown gall disease

This study investigates the antimicrobial potential of aqueous extracts from selected plant species (Lantana camara, Mentha spicata, Chromolaena odorata, Hyptis suaveolens, and Anisomeles malabarica) against Agrobacterium tumefaciens, the causal agent of crown gall disease. The plant extracts were prepared using the Soxhlet and decoction methods, and their phytochemical composition was qualitatively analyzed. The antimicrobial activity of the extracts was evaluated through in vitro and in vivo methods. Results indicated that Lantana camara, Mentha spicata, and Chromolaena odorata extracts effectively suppressed the growth of A. tumefaciens, while Hyptis suaveolens and Anisomeles malabarica did not exhibit significant antimicrobial activity. This study suggests the potential of Lantana camara, Mentha spicata, and Chromolaena odorata as natural alternatives for controlling crown gall disease.