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Indian Journal of Pure & Applied Biosciences (IJPAB)
Year : 2020, Volume : 8, Issue : 4
First page : (66) Last page : (75)
Article doi: : http://dx.doi.org/10.18782/2582-2845.7968

Use of Plant Products, Bio Control Agents, Chemicals and Organic Amendments for Integrated Management of Rhizoctonia solani in Cowpea

Tribikram Sahoo¹, Abhisek Tripathy^2*, Shriram Ratan Pradhan³ and Anirudha Tarai⁴
College of Agriculture, Odisha University of Agriculture and Technology, Bhubaneswar-751003
*Corresponding Author E-mail: abhi.plantpathology@gmail.com
Received: 23.02.2020  |  Revised: 29.03.2020   |  Accepted: 8.04.2020 

 ABSTRACT

For integrated disease management of root and stem rot of cowpea caused by Rhizoctonia solani experiments were conducted using different plant products, bio control agents, chemicals and organic amendments during Kharif of 2014-15. Out of seven phytoextracts tested against Rhizoctonia solani, the maximum inhibition was recorded in garlic(100%) followed by turmeric(34.08%) at 10 % concentration, whereas maximum inhibition 100% was recorded in both 15% and 20% concentration in garlic and calotropis respectively. Out of four biological agents were tested against Rhizoctonia solani, Bacillus subtilis was recorded maximum growth inhibition of 72.04% as compared to Trichoderma hamatum (49.78%) and Trichoderma harzianum (46.00%).  In vitro studies of 13 fungicides against Rhizoctonia solani revealed that Carboxin 37.5% + Thiram 37.5%, Hexaconazole 5%, Difenoconazole 25%, Tebuconazole 25% and Tebuconazole 50% + Trifloxystrobin 25% recorded maximum growth inhibition (100%). In vivo studies of 13 fungicides maximum mortality was recorded from Carbendazim 50% followed by Propineb 70% (82% and 65.97%) respectively. Among the organic products tested against Rhizoctonia solani, the minimum mortality was recorded from spent mushroom substrate + Cowdung + Vermicompost followed by Vermicompost with 10% and 15% mortality respectively. The maximum mortality was recorded from Poultry manure (66.67%) as compared to rest of the treatments and control.

Keywords: Phytoextract, Rhizoctonia solani, Biological agents, Bacillus subtilis, Cowpea

Full Text : PDF; Journal doi : http://dx.doi.org/10.18782

Cite this article: Sahoo, T., Tripathy, A., Pradhan, S.R., & Tarai, A. (2020). Use of Plant Products, Bio Control Agents, Chemicals and Organic Amendments for Integrated Management of Rhizoctonia solani in Cowpea, Ind. J. Pure App. Biosci. 8(4), 66-75. doi: http://dx.doi.org/10.18782/2582-2845.7968