EFFICACY OF FOUR ESSENTIAL OILS ON FUSARIUM HEAD BLIGHT CAUSED BY FUSARIUM OXYSPORUM F. SP. RADICIS LYCOPERSICI (FORL), A FUNGAL TELLURIC PATHOGEN OF TOMATO GROWN UNDER COVER

Fusarium head blight caused by oxysporum f. sp. Radicis-lycopersici (FORL) is a constraint to tomato cultivation in Korhogo, Côte dIvoire. To control this disease, the antifungal activity of essential oils extracted from certain plants was evaluated comparison with that synthetic fungicide for use. In vitro tests were performed on different life stages FORL. The vivo evaluations consisted carrying out two modes treatment (curative and preventive) susceptible variety inoculated results showed significantly reduced F.oxysporum as did product. Thus, oil Cymbopogon citratus at concentrations 4000 6000 ppm strongly inhibited preventive curative treatment, not only improved growth parameters but also incidence severity diseases. it found (4000 ppm) Banko plus (250 mortality rate FORL up 6.66% flowering time plant.The C. could be used biological F. Radicis lycopersici.