COMPARATIVE EFFICACY OF FOUR FORMULATIONS BASED ON AROMATIC PLANT EXTRACT AND A SYNTHETIC FUNGICIDE AGAINST MYCOSPHAERELLA FIJIENSISMORELETCAUSAL AGENT OF BLACK LEAF STREAK DISEASE (BLSD), IN INDUSTRIAL DESSERT BANANA PRODUCTION

Black leaf streak disease (BLSD) caused by Mycosphaerella fijiensisa an ascomycete fungus is the most important foliar ofbananas (Musa sp.). Losses due to this pathogen can exceed 50% in case of no resistant cultivars and effective treatments. This study aimed evaluate efficacy four biopesticides on severity fijiensis. It was conducted under natural infestation conditions industrial dessert banana plantation Agricultural Company KablanJoublin (SAKJ) at Elima (Aboisso). To make it possible some phytopathological, growth agronomic parameters plants were evaluated. The results showed that trees plots treated with had identical characteristics, about all assessed parameters, those chemical fungicide. In addition, applications biofungicide contributed protecting leaves, slowed down onset necrotic first stage significantly reduced level parcels. use aromatic plant essential oils-based biofungicides could be suggested as ecological efficient solution plantain producers against fijiensis responsible for black disease.