 The study synthesizes milligram-O and MNO2 nanoparticles using chamomile flower extract, which reduces the growth of acidovorax orazii, AO, strain-IS, 2x62.9% and 71.3%, respectively, and significantly reduces biofilm formation and swimming motility. The antibacterial mechanisms involve cell membrane destruction leading to cytoplasmic content leakage, and flow cytometry reveals a significant increase in apatotic cell ratio. Overall, the synth-sized milligram-O and MNO2 nanoparticles could serve as an alternative approach method for managing BBS. This article was authored by Solobomia leitinogonimi, Phung Jong, Yasmin Abdullah, and others.