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Sheath Blight of rice caused by Rhizoctonia solani (teleomorph: Thanatephorus cucumeris), is a notorious pathogen and has a wide host range with worldwide in distribution, a very destructive disease under favorable weather conditions in rice growing areas of the world which ultimately causes substantial yield losses. Field experiment were laid out during the kharif season 2020-2021 at OUAT Crop protection field, Bhubaneswar, Odisha on rice cultivar Tapaswini to evaluate the effect of different fungicides in controlling sheath blight of rice. Seven fungicides viz; sheath mark (validamycin 3% L), Tilt (propiconazole 25 % EC), Beam (tricyclazole 75% WP), Folicur (tebuconazole 16%L), Contaf (hexaconazole 5% EC), Bavistin (carbendazim 50% WP) and Amistar (azoxystrobin 23% SC) were evaluated for the control of the pathogen at different stages of the plant growth while the control plots were left un-treated. Among these seven fungicides, azoxystrobin 23 % SC showed minimum disease severity (41.06 %) with 46.03 per cent disease control over check followed by Tilt (propiconazole 25% EC) (45.76 %) with 41.37 per cent disease control over check as compared to control with disease severity (80.97 %) along with maximum yield (69.93q/ha) and (67.72q/ha) respectively.
Among fungicides tested. In vitro, Azoxystrobin 23% SC was found most effective and showed 100 per cent inhibition of mycelial growth of R.solani, from 25 ppm. This study showed that, Azoxystrobin 23% SC a new generation fungicide is more effective and increases the yield upto 22.42 percent.
Keywords:
Sheath Blight,Rice, Fungicides
Cite Article:
"Efficacy of Fungicides for Management of Sheath Blight of Rice ", International Journal of Science & Engineering Development Research (www.ijrti.org), ISSN:2455-2631, Vol.7, Issue 5, page no.119 - 122, May-2022, Available :http://www.ijrti.org/papers/IJRTI2205018.pdf
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ISSN:
2456-3315 | IMPACT FACTOR: 8.14 Calculated By Google Scholar| ESTD YEAR: 2016
An International Scholarly Open Access Journal, Peer-Reviewed, Refereed Journal Impact Factor 8.14 Calculate by Google Scholar and Semantic Scholar | AI-Powered Research Tool, Multidisciplinary, Monthly, Multilanguage Journal Indexing in All Major Database & Metadata, Citation Generator