White rot of brinjal caused by Sclerotinia sclerotiorum (Lib.) de Bary has become a serious problem in India since last few successive years. This disease can cause significant yield losses if not managed well in time with effective management strategies. This study was conducted with an aim to evaluate the efficacy of various fungicides against S. sclerotiorum under in vitro as well as field conditions. All the tested fungicides significantly inhibited the mycelial growth and lowered the disease severity under field conditions as compared to the control. The complete mycelial inhibition was observed in Nativo (tebuconazole + trifloxystrobin) 75WG at 75 & 100 ppm concentrations and Bavistin (carbendazim) 50WP at 100 ppm concentration. The propiconazole was found least effective in checking the growth of the pathogen. Under sick plot conditions, the fungicides Nativo (tebuconazole + trifloxystrobin) 75WG and Bavistin (carbendazim) 50WP performed best with lowest disease severity and higher yield, very closely followed by Score (difenoconazole) 25EC.
Singh et al. (Mon,) studied this question.