
The use of more sustainable control methods for plant diseases is a necessity in today’s agriculture. In this perspective, the biological control of plant diseases emerges as an effective and viable alternative in the context of integrated management. Among some biocontrol agents studied, emphasis has been given to the fungus Clonostachys rosea, due its potential to be used in agriculture. The fungus can be found in different regions, colonizing all parts of many vegetable species, and also has the ability of remaining endophytic in some plant species. Regarding biological control, C. rosea is proven to be effective against different pathogens in a wide host range. Moreover, there are reports of the antagonist working as a growth promoter, inducing resistance in some plant species and being an entomopathogenic fungus. Due to the efficiency and versatility of C. rosea, we attempt in this review to provide a general overview on the potential usage of the antagonist in the context of biological control.