Control of coffee canker associated with <i>Pseudomonas coronafaciens</i> pv. <i>garcae</i> using a cocktail integrating two virulent polyvalent bacteriophages encapsulated in nanoparticles: <i>in planta</i> studies

Application of such lytic nanoparticles in pre- and post-inoculated coffee seedlings in in planta greenhouse assays proved successful in controlling the phytopathogen responsible for BHB of coffee, Pcg, with a significant decrease in the progression of the disease. The results suggest that lytic nanoparticles may become an effective and sustainable strategy for coffee BHB control, as an alternative to conventional approaches relying on chemical (copper hydroxide or oxychloride or kasugamycin hydrochloride) or biological agents, but more studies are needed in the field to confirm this. The phage protection system developed represents a potential alternative treatment for bacterial plant diseases with minimum damage to the environment.