Vol. 7, Issue 4 (2019)
Assessment of new combination fungicides against sheath blight (Rhizoctonia solani, Kuhn) disease of rice (Oryza sativa, L.)
Author(s): Himanshu Shekhar Singh, Akhilesh Jagre and RS Negi
Abstract: Sheath blight of rice is an important disease affecting rice production. Six fungicides were tested to know their efficacy in controlling the disease at the experimental field of Krishi Vigyan Kendra Majhgawan, Satna, (M. P.) during Kharif season of 2017-18. The fungicides viz., tebuconazole + trifloxystrobin (Nativo 75% WG) @ 0.07% (T1), azoxystrobin + difenoconazole (Amistar top 29.6% SC) @ 1.33% (T2), captan + hexaconazole (Taqat 75% WP) @ 0.2% (T3), tebuconazole (Folicur 25.9% EC) @ 0.2% (T4), propiconazole (Tilt 25% EC) @ 0.1% (T5) and hexaconazole (Contaf plus 5% SC) @ 0.2% (T6). Out of six fungicides tested tebuconazole + trifloxystrobin 75% (WG) @ 0.7% and azoxystrobin + difenoconazole 29.6% (SC) @ 1.33% were found significantly superior in controlling the disease. The data reveals that, the per cent disease index (PDI) was significantly low (10.87%) in tebuconazole + trifloxystrobin 75% (WG) and azoxystrobin + difenoconazole 29.6% (SC) (13.46%) sprayed plots respectively, whereas the highest (69.74%) was recorded in unsprayed control plot. Significantly higher grain yield was recorded in tebuconazole + trifloxystrobin 75% (WG) sprayed plot (4702.32 kg / ha), followed by azoxystrobin + difenoconazole 29.6% (SC) (4211.67 kg / ha) and the lowest yield of 2617.21 kg / ha was recorded in the untreated control plot. From the present study we findings it may be concluded that tebuconazole + trifloxystrobin 75% WG (0.07%) and azoxystrobin + difenoconazole 29.6% SC (1.33%) were promising fungicides for lowering sheath blight severity and getting higher grain yield.
Pages: 1746-1748 | 266 Views 46 Downloads
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How to cite this article:
Himanshu Shekhar Singh, Akhilesh Jagre, RS Negi. Assessment of new combination fungicides against sheath blight (Rhizoctonia solani, Kuhn) disease of rice (Oryza sativa, L.). Int J Chem Stud 2019;7(4):1746-1748.
