Vol. 7, Issue 5 (2019)
Evaluation of fungicides in vitro and under natural conditions against Sclerotinia sclerotiorum (Lib.) de Bary, the cause of Sclerotinia rot of rapeseed-mustard
Author(s): Pooja Upadhyay and AK Tewari
Abstract: For the management study of Sclerotinia rot of rapeseed-mustard caused by Sclerotinia sclerotiorum (lib.) de Bary, different fungicides alone (6 no.) and in their combinations (15 no.) were tested in vitro at concentrations of 25, 50, 100, 250 µg a.i./ml and under field conditions against the pathogen. Among them, Iprodione was found most effective with (95.5% inhibition) of mycelial growth, followed by Propaconazole (94.4%) and Thiophenate methyl (88.8%) inhibition at 25 µg a.i./ml concentration. Among different fungicide combinations, at 25 µg a.i./.concentration, 95.3%, 94.4% and 86.6% inhibition found with Iprodione + Thiophenate methyl, Iprodione + Propaconazole and Iprodione + Carbendazim respectively, Under field conditions, Iprodione, Thiophenate methyl, Propaconazol, (Iprodione + Thiophenate methyl), (Iprodione + Propaconazol) and (Thiophenate methyl + Propaconazol) were found most effective with disease reduction, ranging between 61.7-66.3 per cent. Mencozeb was found least effective in vitro and under field conditions in managing the disease.
Pages: 2762-2766 | 218 Views 56 Downloads
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How to cite this article:
Pooja Upadhyay, AK Tewari. Evaluation of fungicides in vitro and under natural conditions against Sclerotinia sclerotiorum (Lib.) de Bary, the cause of Sclerotinia rot of rapeseed-mustard. Int J Chem Stud 2019;7(5):2762-2766.
