In vitro evaluation of fungicides against pathogen Fusarium oxysporum f. sp. zingiberi causing rhizome rot of ginger in Maharashtra state

Abstract

A total of thirteen fungicides were evaluated in vitro against Fusarium oxysporum f.sp. zingiberi, applying Poisoned Food Technique and using Potato Dextrose Agar as basal medium. Effect of these fungicides on radial mycelial growth and inhibition of test pathogen were recorded. All the treatments were replicated three times and a suitable untreated control (without fungicides) was also maintained. Among the different fungicides tested the maximum of 100 per cent inhibition was found in Carbendazim, Carbendazim + Mancozeb and Benomyl and the least inhibition was recorded with the (Metalaxyl + Copper oxychloride) with 21.55 per cent. The pot with Rhizome dip treatment 30 min and soil drenching after one month of sowing were treated with Carbendazim (0.1%) + Mancozeb (0.2%) showed most effective in managing the disease with per cent disease incidence of 8.33 per cent and the next best treatment was Carbendazim (0.1%) alone with PDI of 13.88 per cent, followed by Benomyl (36.11%), the least PDI was recorded with control (77.77%).