Frequent M. aeruginosa outbreaks pose a major risk to public health and have a detrimental effect on aquatic ecosystems. Researchers are looking into ways to stop and control M. aeruginosa blooms, a problem that affects both the aquatic environment and human health significantly. It is important to develop proper monitoring methods to identify M. aeruginosa blooms. However, the existing control and monitoring techniques have some drawbacks that limit the field’s applicability. Therefore, we must improve current methods for effectively monitoring and controlling M. aeruginosa blooms. Mitigation strategies should be customized for particular bodies of water utilizing techniques that are fast, economical, and field-applicable. This review critically identifies and evaluates green technologies, especially those focused on the presence of M. aeruginosa in freshwater, and compares and discusses problems with these green technologies. Furthermore, they were characterized and ranked according to their cost, effectiveness, and field applicability. A few suggestions for improvements were provided, along with ideas for future research projects that would take anticipated environmental changes into account.