Efficacy of Azoxystrobin 7.5% and Propiconazole 12.5% SE Against Sheath Blight in Rice

S. B. Gowdar *

Department of Plant Pathology, College of Agriculture, Gangavathi, Koppal - 583 227 (Karnataka), India.

Narappa G

ICAR-Krishi Vigyan Kendra, Gangavathi, Koppal - 583 227 (Karnataka), India.

*Author to whom correspondence should be addressed.


Among the fungal diseases causing significant yield loss in rice, sheath blight caused by Rhizoctonia solani Kuhn is the most important ranked the second most important disease worldwide after blast and a serious threat in rice growing areas of the world and causes more economic yield losses. The field experiment was conducted with seven treatments and replicated three times in RBD design at ARS, Gangavati to know the effect of Azoxystrobin 7.5% + Propiconazole 12.5% SE against sheath blight in rice. The variety BPT-5204 was sown in plot size of 5 X 5 m2 with all regular agronomic practices followed as per the standard package of practice of University of Agricultural Sciences, Raichur. It has been found that the fungicide Azoxystrobin 7.5% + Propiconazole 12.5% SE at different doses evaluated was effective in reducing the severity of rice sheath blight and thereby increased the rice grain yield. The treatment Azoxystrobin 7.5% + Propiconazole 12.5% SE @ 625 ml/ha recorded minimum sheath blight of 13.70 and 16.11 per cent PDI with yield of 64.60 q/ha and 63.20 q/ha compared to control treatment 48.70 and 57.96 per cent PDI with grain yield of 54.10 q/ha and 52.40 q/ha during the first and second season, respectively. In the current study, along with reducing sheath blight severity, fungicide treatments minimized grain yield losses in 2 years. Field trial conducted clearly indicated that Azoxystrobin 7.5% + Propiconazole 12.5% SE @ 500 and 625 ml/ha dose can effectively control sheath blight of rice. Azoxystrobin 7.5% + Propiconazole 12.5% w/v SE @ 500 ml/ha was at par with higher dose and resulted better yield than other treatments.

Keywords: Azoxystrobin 7.5% propiconazole 12.5% SE, fungicide, rice, sheath blight

How to Cite

Gowdar, S. B., & Narappa G. (2024). Efficacy of Azoxystrobin 7.5% and Propiconazole 12.5% SE Against Sheath Blight in Rice. Journal of Experimental Agriculture International, 46(5), 275–281. https://doi.org/10.9734/jeai/2024/v46i52375


Download data is not yet available.


Webster RK, Gunnell PS. Compendium of Rice Diseases. St Paul, MN: American Phytopathological Society, viii–62; 1992.

Pan X, Zou J, Chen Z, Lu J, Yu H, Li H. Tagging major quantitative trait loci for sheath blight resistance in a rice variety, Jasmine 85. Chin. Sci. Bull. 1999;44:1783–1789.

Groth DE. Azoxystrobin rate and timing effects on rice sheath blight incidence and severity and rice grain and milling yields. Plant Dis. 2005;89:1171–1174.

Zhou XG, Jo YK. Disease management. In: Way MO, McCauley GM, Zhou XG, Wilson LT, Brandy M, (Eds.), Texas Rice Production Guidelines. Texas Rice Research Foundation. 2014;44–57.

Ou SH. Rice Diseases, 2nd Edn. Commonwealth Mycological Institute, Surrey; 1985.

Savary S, Willocquet L, Elazegui FA, Castilla N, Teng PS. Rice pest constraints in tropical Asia: Quantification and yield loss due to rice pests in a range of production situations. Plant Dis. 2000;84: 357-369.

Savary S, Teng PS, Willocquet L, Nutter FW Jr. Quatification and modeling of crop losses: A review of purposes. Annual Rev. Phytopathol. 2006;44:89-112.

Groth DE, Bond JA. Effect of cultivars and fungicides on rice sheath blight, yield, and quality. Plant Dis. 2007;91:1647–1650.

Margani R, Widadi S. Utilizing Bacillus to inhibit the growth and infection by sheath blight pathogen, Rhizoctonia solani in rice. IOP Conf. Ser. Earth Environ. Sci. 2018; 142:012070.

Singh SK, Shukla V, Singh H, Sinha AP. Current status and impact of sheath blight in rice (Oryza sativa L.) - A review. Agric. Rev. 2004;25(4):289-297.

Zheng A, Lin R, Zhang D, Qin P, Xu L, Ai P, Ding L, Wang Y, Chen Y, Liu Y. The evolution and pathogenic mechanisms of the rice sheath blight pathogen. Nat. Commun. 2013;4:1424.

Bhunkal N. Singh Ramm, Mehta N. Assessment of losses and identification of slow blighting genotypes against sheath blight of rice. J. Mycol. Pl. Pathol. 2015;45:285-292.

Roy AK. Sheath blight of rice in India. Indian Phytopath. 1993;46:97-205.

Rajan CPD. Estimation of yield losses due to sheath blight of rice. Indian Phytopathol. 1987;40:174-177.

Naik RG, Jayalakshmi K, Naik TB. Efficacy of fungicides on the management of sheath blight of rice. Int. J. Curr. Microbiol. Appl. Sci. 2017;6:611–614.

Kandhari J, Gupta RL, Kandari J. Efficacy of fungicides and resistance inducing chemicals against sheath blight of rice. J. Mycological Res. 2003;41

Kandhari J, Gupta RL. Efficacy of fungicides and resistance inducing chemicals against sheath blight of rice. Journal of Mycological Research. 2003; 41:67-69

Groth DE, Bond JA. Initiation of rice sheath blight epidemics and effect of application timing of azoxystrobin on disease incidence, severity, yield, and milling quality. Plant Disease. 2006;90:1073-1076.

Bhuvaneswari V, Raju KS. Efficacy of new combination fungicide against rice sheath blight caused by Rhizoctonia solani (Kühn). J. Rice Res. 2012;5:57–61.

Kumar PMK, Gowda SDK, Rishikant M, Kumar KN, Gowda PKT, Vishwanath K. Impact of fungicides on rice production in India. In: Fungicides – Showcases of integrated plant disease management from around the world. 2013;77-98.

Singh R, Sunder S, Kumar P. Sheath blight of rice: Current status and perspectives. Indian Phytopathol. 2016;69:340–351.

Uppala S, Zhou XG. Field efficacy of fungicides for management of sheath blight and narrow brown leaf spot of rice. Crop Prot. 2018;104:72-77.

Dash SC, Panda S. Chemical control of rice sheath blight disease. Indian Phytopath. 1984;37: 79-82.

Kannaiyan S, Prasad NN. Effect of foliar spray of certain fungicides on the control of sheath blight of rice. Madras Agric. J. 1984;71:111-114.

Singh R, Sinha AP. Comparative efficacy of local bioagents, commercial bioformulation and fungicide for the management of sheath blight of rice, under glass house conditions. Indian Phytopath. 2004;57:494-496.

Robinson E. Resistant sheath blight changing practices in Louisiana; 2013.

Available:http://deltafarmpress.com/rice/resistant-sheath-blight-changing-practices-louisiana, Accessed date: 24 July 2015.

Yellareddygari SKR, Reddy MS, Kloepper JW, Lawrence KS, Fadamiro H. Rice sheath blight: A review of disease and pathogen management approaches. J. Plant Pathol. Microbiol. 2014;5:1000241.

Kumar P, Ahlawat S, Chauhan R, Kumar A, Singh R, Kumar A. In vitro and field efficacy of fungicides against sheath blight of rice and post-harvest fungicide residue in soil, husk, and brown rice using gas chromatography- tandem mass spectrometry. Environ. Monit. Assess. 2018;190:503.

Shahid AA, Shahbaz M, l Ali M. A comparative study of the commercially available fungicides to control sheath blight of rice in Lahore. J. Plant Pathol. Microb. 2014;5:2157–7471.

Rashid MM, Bhuiyan MR, Dilzahan HA, Hamid MA, Hasan N, Khan MAI. Biological control of rice sheath blight disease (Rhizoctonia solani) using bio-pesticides and bio-control agents. Bangladesh Rice J. 2020;24:47-58.

Prasanna Kumar MK, Veerabhadraswamy AL. Appraise a combination of fungicides against blast and sheath blight diseases of paddy (Oryzae sativa L). J. Exp. Biol. Agri. Sci. 2014;2:49–57.

Bag MK. Efficacy of a new fungicide ‘Trifloxystrobin 25% + Tebuconazole 50%’ 75WG against Sheath Blight (Rhizoctonia solani Kühn) of Rice. Journal of Crop and Weed. 2009;5(1):224-226.

International Rice Research Institute. Standard Evaluation System for Rice, 5th edn., Nov. 2002, INGER, Genetic Resources Center, IRRI, P.O. Box 933, 1099, Manila, Philippines. 2002;56.

Wheeler BEJ. An introduction to plant diseases. John Wiley and Sons Ltd; London, UK. 1969;254.

Phelp RH, Soto A. Rice diseases at CARONI and approaches to the control In Proc. Monitoring tour and workshop on Integrated Pest Management in rice in Caribbean. held in Guyana and Trinidad and Tobago. 7-11 October 1991; 1993.

Jones RE, Belmar SB, Jeger MJ. Evaluation of benomyl and propiconazole for controlling sheath blight of rice caused by Rhizoctonia solani. Plant Disease. 1987;71:222-229

Bag MK, Saha S. Fungitoxic effect of Nativo 75WG (trifloxystrobin 25% + tebuconazole 50%) on grain discolouration (GD) disease of rice in West Bengal. Pestology. 2009;33:47-49.

Visalakshmi V, Raju MRB, Rao AU, Kumar KM, Satyanarayana NH. Compatibility and efficacy of insecticide and fungicide combinations on major pests and sheath blight of paddy. Nat. Env. Poll. Tech. 2016;15:233–235.

Jin C, Wu R, Hu H, Jifeng W, Xiaoxia W. Control effect of 6 types of azoxystrobin mixture on rice sheath blight. Chin. Agric. Sci. Bull.; 2013 Available:http://en.cnki.com.cn/Article_en/CJFDTOTAL-ZNTB201318031.htm, Accessed date: 22 April 2016.

Bag MK. Performance of a new generation fungicide Metominostrobin 20SC against sheath blight disease of rice. J. Mycopathol. Res. 2011;49(1):167-169.

Biswas A, Bag MK. Strobilurins in management of sheath blight disease of rice: A review. Pestol. 2010;34:23-26.

Bag MK, Yadav M, Mukherjee AK. Bioefficacy of Strobilurin based fungicides against rice sheath blight disease. Transcriptomics. 2016;4:128.