Pathogenicity Test And Evaluation Of Fungicides Against Rhizoctonia Bataticola

P. A. Deshmukh; A.V. Zope; Y.V. Kharat; S. S. Tekale

doi:10.48165/jpds.2022.1702.03

Authors

P. A. Deshmukh Department of Plant Pathology, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola-444104 (MS) India
A.V. Zope Department of Plant Pathology, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola-444104 (MS) India
Y.V. Kharat Department of Plant Pathology, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola-444104 (MS) India
S. S. Tekale Department of Plant Pathology, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola-444104 (MS) India

DOI:

https://doi.org/10.48165/jpds.2022.1702.03

Keywords:

Fungicides, Growth inhibition, Pathogenicity test, Rhizoctonia bataticola

Abstract

The seeds of susceptible soybean cultivar TAMS-38 were used for studying the pathogenicity of isolate in sick pot culture. In the pathogenicity test, R. bataticola found pathogenic to soybean causing 80% root rot disease. The soybean TAMS-38 exhibited root rot on 30-35 days after sowing. Poisoned food technique was employed to test the efficacy of fungicides viz. Carbendazim, Thiram, Captan, Carboxin, Mancozeb, Metalaxyl + Mancozeb, and Copper oxychloride against R. bataticola in vitro. The most effective fungicides in arresting (100%) mycelial growth were Carbendazim (0.1%), Carboxin (0.1%), Mancozeb (0.25%), Metalaxyl + Mancozeb (0.2%) and Copper oxychloride (0.3%), whereas the minimum mycelial growth inhibition was recorded by Captan and Thiram.

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