Susceptibility of Fruit Species to Erythricium salmonicolor and Implications for the Sustainable Management of Rubelosis

• DOI: https://doi.org/10.22533/at.ed.18136126200110

• Palavras-chave: Bio-inputs. Epidemiology. Fruit growing. Biological control. Polyphagy.

• Keywords: Bio-inputs. Epidemiology. Fruit growing. Biological control. Polyphagy.

• Abstract:

  Rubelosis, caused by Erythricium salmonicolor, is a disease widely distributed in tropical regions, with a high capacity to infect multiple hosts and compromise diversified agricultural systems. This study aimed to evaluate the susceptibility of different fruit species to an isolate of the pathogen, as well as to discuss implications for the sustainable management of the disease. The experiment was conducted in a completely randomized design, using seedlings of seven fruit species that were artificially inoculated. Parameters related to lesion characterization and plant response to infection were evaluated. The results showed significant differences in susceptibility among the species, with greater severity observed in acerola, cashew, and mango. The presence of symptoms on multiple hosts confirms the pathogen’s polyphagous nature and its epidemiological potential in tropical systems. An integrated analysis of the results indicates that host diversity may favor the maintenance of the inoculum, complicating disease management. In this context, the use of bio-inputs, including antagonistic microorganisms and resistance inducers, emerges as a promising strategy for reducing inoculum pressure and promoting the microbiological balance of the system. The integration of these technologies with cultural practices can contribute to the development of more resilient and sustainable agricultural systems.