Fusarium sp. It is a genus of filamentous fungi that lives both in the soil and in plant tissues. It is characterized by producing spores called macroconidia and microconidia, as well as resistance structures known as chlamydospores, which can survive in adverse conditions for long periods. These structures allow it to persist in plant remains and contaminated soil. When conditions are favorable, it germinates and colonizes weakened roots or tissues, penetrating wounds or through natural openings. From there, it invades the vascular tissues, especially the xylem, moving through the conductive vessels and blocking the flow of water and nutrients. This internal colonization favors the appearance of characteristic symptoms in plants, which progressively worsen. The pathogen can also reproduce and be released back into the environment through spores that are spread by water, tools or vectors.