Rodent population dynamics and crop loss estimation due to rodent pests in finger millet based crop lands

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Rodent pests in finger millet based crop lands


  • Mohan I Naik Naik UAS, Bangalore
  • Vipin Chaudhary Binny ICAR
  • Basavadarshan A V UAS, Bangalore


Eleusine coracana, Rodents, Shanon index, specie


Ragi (Eleusine coracana Gaertn ) also known as finger millet is an important millet widely grown in Asia and is the major staple food in southern Karnataka. Rodents are critical vertebrate pests and are regarded as big chaos to agricultural production. In the present studies the rodent population and crop loss due to rodent pest in finger millet crop was analyzed during the year 2022. The studies revealed that with mean trap index of 20.28 the rodent activity in the finger millet crop lands was observed throughout the year and the peak rodent activity was recorded in Kharif and Rabi crop seasons and was less in the dry (summer) seasons. The population was male and adult dominant with a male female ratio of 1:0.92 and adult infant ratio of 1:0.56, respectively. The Shannon index (Hǀ) in finger millet crop lands found to be 1.08 and the peak Shannon index was recorded in the month of August with a highest relative abundance of Bandicota bengalensis, Tatera indica and Mus platythrix rodent species in the finger millet crop lands. The yield loss estimation studies indicated that there was a grain loss of 2.98 q ha-1 in finger millet crop lands with a monetary value of Rs. 10, 662 (US $129.48) per hectare.


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Author Biographies

Mohan I Naik Naik, UAS, Bangalore

Professor of Entomology at UAS, Bangalore and PI of AINP on VPM

Basavadarshan A V, UAS, Bangalore

RA at UAS Bangalore in AINP VPM Project


Andreassen, H.P., Sundell, J., Ecke, F., Halle, S., Haapakoski, M., Henttonen, H., Huitu, O., Jacob, J., Johnsen, K., Koskela, E., Luque-Larena, J.J., Lecomte, N., Leirs, H., Marien, J., Neby, M., Rätti, O., Sievert, ., Singleton, G.R., van Cann, J. and Ylonen, H. 2021. Population cycles and outbreaks of small rodents: Ten essential questions we still need to solve. Oecologia 195(3): 601-622.

Anonymous. 2016. Annual Progress Report of All India Network Project on Vertebrate Pest Management. University of Agricultural Sciences, Bangalore. 85p.

Aulicky, R. 2022. Rodents in crop production agricultural systems - Special Issue. Agronomy 12(11): 2813.

Bellundagi, V., Umesh, K.B., Sakamma, S. and Hamsa, K.R. 2017. Cost - Returns analysis and marketable surplus of ragi in central dry zone of Karnataka. Journal of Agriculture and Veterinary Science 10(10): 24-29

Betancourt, S., Lopez, P., Cime, J. and Medina, P.S. 2003. Area of activity, movement and social organization of Heteromysgaumeri Allen and Chapman, 1897 (Rodentia: Heteromyidae) in a medium deciduous forest in Yucatan, Mexico. Acta Zoológica Mexicana 90: 77-79.

Brown, P.R., Tuan, N.P., Singleton, G.R., Ha, P.T.T., Hoa, P.T., Hue, D.T., Tan, T.Q., Tuat, N.V., Jacob, J. and Müller, W.J. 2006. Ecologically based management of rodents in the real world: Applied to a mixed agroecosystem in Vietnam. Ecological Applications 16(5): 2000-2010.

Buckle, A. and Smith, R. 2015. Rodent Pests and Their Control. 2nd Edition. CAB International, Wallingford, United Kingdom. 403 p.

Govindaraj, G. 1994. Effective period for the control of the brown spiny mouse, Mus platythrix in dryland crops. Proceedings of Sixteenth Vertebrate Pest Conference California, USA. 56p.

Govindaraj, G. and Srihari, K. 1989. Reproductive biology of the rodent pest, soft furred field rat, Rattus meltada. Proceedings of the International Conference on Biology and Control of Pests of Agriculture and Medical Importance, Madurai, India.

Govindaraj, G. and Srihari, K. 1992. Seasonal changes during the annual reproductive cycle of the south Indian gerbil Tatera indica. Zeitschrift für Angewandte Zoologie 79: 349-364.

Hazra, D.K., Karmakar, R., Poi, R., Bhattacharya, S. and Mondal, S. 2017. Rodent menace, their management and role of possible new rodenticide formulations to combat resistance. Journal of Entomology and Zoology 5(21): 202-206.

Jain, A.P., Tripathi, R.S. and Rana, B.D. 1993. Rodent Management: The State of Art. Technical Bulletin No. 1, Indian Council of Agricultural Research, New Delhi. pp. 20-21.

Lawton, D., Huseth, A.S., Kennedy, G.G., Morey, A.C., Hutchison, W.D., Reisig, D.D., Dorman, S.J., Dillard, D., Venette, R.C., Groves, R.L., Adamczyk, J.J., Barbosa Dos Santos, I., Baute, T., Brown, S., Burkness, E., Dean, A., Dively, G.P., Doughty, H.B., Fleischer, S.J. and Zuefle, M. 2022. Pest population dynamics are related to a continental overwintering gradient. Proceedings of the National Academy of Sciences 119(37): e2203230119.

Munawar, N., Mahmood, T., Akrim, F., Fatima, H., Farooq, M., Irshad, N., Fakhar, M., Javed, T., Baig, A., Razzaq, A. and Saman, A. 2022. Small rodent communities and their associated damage to wheat-groundnut agriculture systems. Brazilian Journal of Biology 84: e254445.

Naik, M.I., Nayak, R.B., Kannur, S and Shivayya, V. 2015. Dynamic of rodent community in soybeanragi based crop lands. Bioinfolet 12 (1A): 24-29.

Nayak, R.B. 2012. Studies on population dynamics and management of rodents in soybeanragi ecosystem. M.Sc. Thesis, Department of Agricultural Entomology, University of Agricultural Sciences, Bangalore, Karnataka, India.

Neetu, R., Ravikant, H., Anju, M. and Dahiya, T. 2020. Population dynamics and structure of rodents in arid ecosystem of district Hisar (Haryana). Indian Journal Entomology and Zoology Studies 9(1): 334-337.

Panti-May, J.A., Betancourt, H., Pina, R. and Peralta, S.M. 2012. Abundance and population parameters of commensal rodents present in rural households in Yucatan, Mexico. International Biodeterioration and Biodegradation 66: 77-81.

Prajapati, V.P., Sabalpara, A.N. and Pawar, D.M. 2013. Assessment of yield loss due to finger millet blast caused by Pyricularia grisea (Cooke) Sacc. Trends in Biosciences 6(6): 876-878.

Ravi, S.C., Rashmi, K.S., Satishkumar, M. and Reddy, B.V.M. 2015. Millets cultivation in Karnataka: A profitability analysis. Trends in Biosciences 8(6): 1428-1430.

Sridhara, S. 2006. Vertebrate Pests in Agriculture- The Indian Scenario. Scientific Publishers, Jodhpur, India. 131p.

Srihari. K., Govindraj, G. and Guruprasad, B.K. 1984. The annual reproductive cycle of Bandicota bengalensis in and around Bangalore district, Karnataka. Rodent Newsletter 8(1): 4.

Suresh, K. and Chandrakanth, M.G. 2015. Total factor productivity and returns to investment in Ragi (finger millet) crop research in Karnataka state, India. Indian Journal of Economics and Development 3(3): 199-205.

Witmer, G.W. and Sigleton, G.R. 2010. The need to manage rodent damage. In Agricultural Production (ed. F.C. Wager). Nova Science Publishers, Delhi. pp. 1-38.

Wondifraw, B.T., Tamene, M.Y. and Simegn, A.B. 2021. Assessment of crop damage by rodent pests from experimental barley crop fields in Farta District, South Gondar, Ethiopia. PLOS ONE 16(8): e0255372.






How to Cite

Naik, M. I. N., Binny, V. C., & Basavadarshan A V. (2023). Rodent population dynamics and crop loss estimation due to rodent pests in finger millet based crop lands : Rodent pests in finger millet based crop lands . Annals of Arid Zone, 62(1).