Bioactivity Investigation of Triazole Fungicide Enantiomers

Racemates of triazole fungicides (tebuconazole, flutriofol and hexaconazole) were separated using HPLC and their pure enantiomers were prepared. Cercospora arachidicola, Alternaria solani, Sclerotinia sclerotiorum, Alternaria mali and Cercospora beticola were provided as experimental phytopathogens. Bioactivity of the racemates and pure enantiomers was determined by agar dilution method. Results indicated that enantiomers showed different antimicrobial activity.