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Exploring efficacy of organic amendments against Rhizoctonia solani f. sp. sasakii, causing banded leaf and sheath blight in maize (Zea mays L.)

Author: S. N. Banne, A. P. Suryawanshi, S. S. Kadam and J. B. Bhalerao

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Abstract

Maize (Zea mays L.) is an important crop widely cultivated as for food, feed and fodder purposes. Among fungal diseases, banded leaf and sheath blight (BLSB) disease caused by Rhizoctonia solani f. sp. sasakii is a major problem in maize cultivation, all over the world. Recently, use of organic amendments to control soil borne diseases is emerging as one of the promising practises as its cost effective, avoids health hazards eco-friendly and an efficient non-chemical method approach to control the pathogens. Therefore, the polybag culture (screen house) studies were undertaken to manage maize BLSB (Rhizoctonia solani f. sp. sasakii) disease, applying soil organic amendments. Of the 12 soil amendments tested, neem seed cake soil application @ 50g/kg potting mixture was found most effective with significantly highest seed germination (87.57 %), least pre-emergence (12.43 %), post-emergence (15.22 %) and average mortality (13.82 %) and thereby resulted significantly with highest reduction in pre-emergence (81.63 %), post-emergence (83.18 %) and average mortality (82.40 %), followed by the soil amendments viz., Castor seed cake, Karanj cake and Groundnut cake.

Keywords

Soil amendments, Rhizoctonia solani, Banded leaf and sheath blight, Polybags culture, Mortality

Conclusion

Organic amendments viz., Neem seed cake and Castor seed cake were found most effective in vitro against R. solani f. sp. sasakii, with significant mycelial growth inhibition as well as significant reduction in mortality (pre- and post-emergence and average), over untreated control, respectively.

References

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How to cite this article

S. N. Banne, A. P. Suryawanshi, S. S. Kadam and J. B. Bhalerao (2024). Exploring efficacy of organic amendments against Rhizoctonia solani f. sp. sasakii, causing banded leaf and sheath blight in maize (Zea mays L.). Biological Forum – An International Journal, 16(5): 38-42.