Allorhizobium (Agrobacterium) vitis is a pathogenic bacterium that causes crown gall disease in grapevines, negatively impacting growth and production globally.
Essential oils from Origanum compactum and Thymus vulgaris displayed strong antibacterial effects against A. vitis, with minimal inhibitory concentrations (MIC) of 0.156 mg/mL and 0.312 mg/mL, respectively.
A combined application of these essential oils not only exhibited a synergistic antibacterial effect but also significantly reduced gall symptoms and tumor size in tomato and grapevine plants when tested in vivo.