STUDY THE EFFECT OF CARVACROL, EUGENOL AND THYMOL ON FUSARIUMS SP RESPONSIBLE FOR LOLIUM PERENNE FUSARIOSISHamza Saghrouchni, Azeddin El Barnossi, Hanane Chefchaou, Aouatef Mzabi, Mariam Tanghort, Adnane Remmal and Chami Fouzia
Most fungi of the genus Fusarium can cause fusariosis in turf, especially in the species Lolium perenne (ray grass) in golf. The purpose of this study was to find biological control alternatives to control turfgrass blight. During our research, we studied in vitro the effect of Carvacrol, Thymol, and Eugenol against three Fusarium species responsible for ray grass Fusarium head blight by the macrodilution method. The minimum inhibitory concentration (MIC) values obtained were confirmed that the three majority compounds tested, except Eugenol, have high activity against the three Fusarium species. This activity has been shown at very low doses (0.05 mg/mL of Thymol and Carvacrol against F. nivale and F. solani, the three major compounds continue to have a significant partial inhibitory action against the three isolates. A concentration that is four times lower than the MIC of Carvacrol has been induced more than 60% inhibition. With regard to soil disinfection, Carvacrol has been shown to have a dose-dependent anti-Fusarium action on both sterile and normal soils by the sporale technique. This action was detected from the 2nd week onwards and becomes significant at the 4th week for doses above 0.2 g/L. In the light of the results of the current study, we can suggest that Carvacrol could become a natural alternative that could play a protective role against ray grass fusariosis without any harmful effects on the environment and humans.