Vol. 12, Issue 12 (2023)

Author(s):
VA Chavan, PB Khaire, CG Sawant, AG Shinde and RA Yumlembam

Abstract:
The in vitro assessment of efficacy of nine systemic, non-systemic and combi-fungicides revealed that, all the systemic fungicides (propiconazole, tricyclazole and carbendazim) significantly inhibited the colonial growth of Macrophomina phaseolina, a blight pathogen of green-gram crop. Propiconazole and tricyclazole gave 100% mycelial growth inhibition of test fungus at all the three concentrations (0.05, 0.1 and 0.15%), while carbendazim showed complete inhibition at 0.15% conc. Among the non-systemic and combination fungicides, carbendazim + mancozeb completely restricted the mycelial growth of test fungus at all concentrations (0.15, 0.2 and 0.25%). Mancozeb and thiram were also found effective. The in vitro assessment of fungicide is an important aspect in the determination and selection of fungicide for field management of the concern pathogen.