Vol. 10, Issue 10 (2021)

Author(s):
Chethan P, SR Lohate, SN Hasabnis and GM Bansode

Abstract:
The present study was carried out to evaluate the efficacy of seven fungicides against Aspergillus niger, Aspergillus flavus and Fusarium oxysporum f. sp. cepae which are associated with post-harvest bulb rot of onion using poisoned food technique. The fungicides, evaluated in vitro were found fungistatic/antifungal against test pathogens. Propiconazole was found most fungistatic and recorded cent per cent mycelial growth inhibition. The next best fungicides were SAAF (93.70%) and Tebuconazole (92.59%). Copper oxychloride was found less effective with 28.89 per cent mycelial growth inhibition against A. niger. Fungicides, Tebuconazole, Propiconazole and SAAF were found most fungistatic and recorded significantly the cent per cent mycelial growth inhibition and azoxystrobin was found less effective with 50.76 per cent inhibition of mycelial growth against A. flavus. Cent per cent inhibition of mycelial growth was observed in fungicides Tebuconazole and Propiconazole were found most fungistatic. Fungicides,Copper oxychloride was found less effective with minimum 65.54 per cent mycelial growth inhibition against against F. oxysporum f. sp. cepae.