Management of Mungbean Yellow Mosaic Virus (MYMV) Disease of Blackgram by Chemical and Non-chemical Methods

Author: M. Kasi Rao, M. Adinarayana, A.K. Patibanda and T. Madhumathi

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Abstract

Yellow mosaic disease (YMD) remains a most important destructive viral disease of blackgram production in the Indian subcontinent with the economic losses account up to 85%. YMD is caused by a single stranded DNA containing begomovirus viz., Mungbean yellow mosaic virus (MYMV) which is mainly transmitted through whitefly (Bemisia tabaci Genn.). However, management of this deadly disease is still the biggest challenge. A field experiment with botanicals, micronutrients and chemical insecticides was conducted at RARS, Lam, Guntur, Andhra Pradesh during kharif and rabi 2019-20 to find out the best treatment for the management of MYMV and to increase the grain yield of blackgram. Results from the two field trials suggest seed treatment with thiamethoxam (5.0g/kg) and two sprays of acetamiprid (4%) + fipronil (4%) (2.0ml/l) (T7) reported the least mean MYMV incidence (3.75 and 4.84%) and severity (6.01% and 7.32%) with whitefly population of (4.14 and 2.95/plant) during kharif and rabi foll

Keywords

MYMV, Blackgram, Whitefly, Management.

Conclusion

In the present study botanicals, micronutrients and insecticides were used for the management of MYMV rather than relying upon chemical insecticides alone. Based on two seasons experimentation, treatment involving seed treatment with thiamethoxam (5.0g/ kg) and two sprays of acetamiprid (4%) + fipronil (4%) (2.0ml/l) (T7) recorded least mean MYMV incidence and whitefly population with significant enhancement of grain yield and other yield contributing attributes.

References

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How to cite this article

Rao, M.K., Adinarayana, M., Patibanda, A.K. and Madhumathi, T. (2021). Management of Mungbean Yellow Mosaic Virus (MYMV) Disease of Blackgram by Chemical and Non-chemical Methods. Biological Forum – An International Journal, 13(1): 333-341.