Madras Agricultural Journal
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Research Article | Open Access | Peer Review

PREDICTING RICE LEAFFOLDER DAMAGE AND YIELD LOSS IN IR 50 RICE BY MATHEMATICAL MODELLING

Volume : 85
Issue: Jul-sep
Pages: 429 - 432
Published: July 02, 2023
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Abstract


The predicted damage and yield loss caused by rice leaffolders, Cnaphalocrocis medinalis (Guence) and Marasmia patnalis (Bradley) in microplot experiment during kharif 1996 showed that the yield loss was higher at the initial infestation by leaffolder larvae at 40 DAS than the infestation at 30 DAS. There was no proportionate increase in yield loss with increasing larval populations. The rate of yield loss due to an increment of one percent damage was more pronounced at 10 percent base level damage i.e., 10 to 11 percent than at higher base level damage of 20, 30 to 90 percent.

DOI
Pages
429 - 432
Creative Commons
Copyright
© The Author(s), 2025. Published by Madras Agricultural Students' Union in Madras Agricultural Journal (MAJ). This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium, provided the original work is properly cited by the user.

Keywords


Rice leaffolder damage yield loss and modelling
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