The phytopathogen M. roreri represents one of the main phytosanitary problems worldwide, it is still a challenge and represents a risk for almond production. The efficient use of fungicides reduces the impact on the environment and contributes to the care for the non-resistance of the pathogen. This work carried out an experimental study to estimate the capacity of chemical fungicides for in vitro and in vivo management of the disease and also analyzed the effective isolates of the pathogen that have been reported in laboratory conditions in Ecuador. Three experimental trials were carried out, the first with a DCA to estimate effective doses of azoxystrobin, copper sulfate pentahydrate and chlorothalonil under in vitro conditions; the second a factorial DCA to evaluate the effect of antifungals on loose fruits inoculated with the pathogen under controlled conditions using conidia sprayin...