Evaluation of Fungicides and Plant extracts against stem rot of mustard pathogen (Sclerotinia sclerotiorum) In-Vitro and In-Vivo condition

DHEERAJ KUMAR TRAPATHI; RAMESH SINGH; ANAND KUMAR PRAJAPATI

doi:10.21921/jas.v10i01.12261

DHEERAJ KUMAR TRAPATHI Department of Plant Pathology, T.D.P.G. College, Jaunpur, Uttar Pradesh, India
RAMESH SINGH Department of Plant Pathology, T.D.P.G. College, Jaunpur, Uttar Pradesh, India
ANAND KUMAR PRAJAPATI Department of Plant Pathology, T.D.P.G. College, Jaunpur, Uttar Pradesh, India

DOI: https://doi.org/10.21921/jas.v10i01.12261

Keywords: Evaluation, Fungicides, Plant Extract, Sclerotinia sclerotiorum, Mustard.

Abstract

Mustard group of crops are important oil seed crops of the world. The stem rot of mustard incited by Sclerotinia scletiorum (Lib.) de Bery, is a new emerging drastic disease. The pathogen was tested with 12 Fungicides and 03 Plant extract In-Vitro.In-Vivo condition 9 fungicides and 01 plant extract were tested in the year of 2019-20 and 2020-21. Among the tested fungicides namely Mancozeb, Chlorothalonil, and Vitvax were found most effective which inhibited the growth of the pathogen completely and inhibition exhibited 100%. Vapum was the least effective fungicide which showed 88.03mm fungal growth with 2.18 per cent inhibition over control. In-Vivo condition Chlorothalonil and Mancozeb was most effective fungicides which was showed mean minimum disease incidence (06.25% and 08.87%) and maximum mean yield 6.55 and 5.75q/ha. respectively. Next order of superiorly fungicides were Kitazin, Bavisin and Vitavax, which were showed the mean disease incidence 11.68, 13.65, 15.6 and yield 5.20, 4.70 and 4.30q/ha. respectively. Among the tested fungicide Zineb was least effective which was showed the maximum mean incidence of disease (30.03) with respect to minimum mean yield (2.67q/ha). Among the plant extract Nimbidinwas least effective which showed 33.14 per cent mean disease incidence and minimum (2.32q/ha) grain yield.