Investigation of the Effectiveness of Three Plant Defense Stimulators on the in vitro Growth of Mycosphaerella fijiensis, Causal Agent of Black Sigatoka Disease of Banana

Abstract
The study aimed at controlling the mycelial growth and germination of Mycosphaerella fijiensis in Petri dish by using three plant defense stimulators. Approximately, 2 mL of each stimulator (Vacciplant®, Callel® and calliete®) were added to the different M. fijiensis culture media. The results obtained show that Vacciplant® and Callel® promote the in vitro growth of M. fijiensis contrary to calliete® which inhibits it. Indeed, it causes total mortality (100%) of conidia at the sporulation stage.