Biological control (biocontrol) offers a sustainable solution to combat plant diseases in agriculture. By harnessing natural antagonistic relationships among microorganisms, biocontrol strategies such as hyperparasitism, antibiotic production, lytic enzyme secretion, competition, induced host resistance, and microbial diversity effectively suppress a wide range of plant pathogens. However, successful implementation requires a thorough understanding of microbial interactions with pathogens and host plants, as well as environmental factors.