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Assessing yellow stem borer (Scirpophaga incertulas) incidence patterns in paddy (Oryza sativa) cultivation:Implications for climate change adaptation strategies

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Název: Assessing yellow stem borer (Scirpophaga incertulas) incidence patterns in paddy (Oryza sativa) cultivation:Implications for climate change adaptation strategies
Autoři: B N BALAJI, L VIJAYKUMAR
Zdroj: The Indian Journal of Agricultural Sciences, Vol 95, Iss 4 (2025)
Informace o vydavateli: Indian Council of Agricultural Research, Directorate of Knowledge Management in Agriculture, 2025.
Rok vydání: 2025
Témata: Agriculture, Climate adaptation strategies, Climate change, Incidence patterns, Yellow stem borer
Popis: Rising global food demand and the challenges posed by climate change necessitate sustainable agricultural practices, particularly in staple crop production like rice. The study was carried out during 2022–2023 at College of Agriculture, V C Farm, Mandya, Karnataka to investigate the incidence patterns of the yellow stem borer [Scirpophaga incertulas (Walker)], a significant threat to paddy (Oryza sativa L.) crops, in the context of climate change. The rice variety Jaya was taken for the study. Correlation analyses between meteorological variables and yellow stem borer infestation were performed to understand climate-driven impacts on pest dynamics. Results revealed varying infestation levels across transplanting dates, with early transplanting showing lower infestation rates. The peak pest incidence was recorded on the 15th of October transplanted crop (14.94%), then 1st of October (13.24%) and 15th of March (11.51%). The lowest incidence was observed in 15th January (0.37%) transplanted crop, followed by 1st January and 1st February transplanted crops. Meteorological factors such as minimum temperature and afternoon relative humidity showed a significant positive correlation and morning relative humidity had a significant negative correlation with dead heart. Meanwhile, maximum and minimum temperatures and rainy days recorded a significant negative correlation with white ears. These findings highlighted the critical need for adaptive agricultural strategies that respond to climate variability. Moving forward, strategies such as developing climate-resilient crop varieties and innovative pest management approaches are essential for sustaining rice production and global food security amidst evolving climatic conditions.
Druh dokumentu: Article
ISSN: 2394-3319
0019-5022
DOI: 10.56093/ijas.v95i4.154914
Přístupová URL adresa: https://doaj.org/article/9500a8a23538422997e210d7769d6c8a
Rights: CC BY NC SA
Přístupové číslo: edsair.doi.dedup.....e8100d9a34b2f6895ba5b541d2583f45
Databáze: OpenAIRE
Popis
Abstrakt:Rising global food demand and the challenges posed by climate change necessitate sustainable agricultural practices, particularly in staple crop production like rice. The study was carried out during 2022–2023 at College of Agriculture, V C Farm, Mandya, Karnataka to investigate the incidence patterns of the yellow stem borer [Scirpophaga incertulas (Walker)], a significant threat to paddy (Oryza sativa L.) crops, in the context of climate change. The rice variety Jaya was taken for the study. Correlation analyses between meteorological variables and yellow stem borer infestation were performed to understand climate-driven impacts on pest dynamics. Results revealed varying infestation levels across transplanting dates, with early transplanting showing lower infestation rates. The peak pest incidence was recorded on the 15th of October transplanted crop (14.94%), then 1st of October (13.24%) and 15th of March (11.51%). The lowest incidence was observed in 15th January (0.37%) transplanted crop, followed by 1st January and 1st February transplanted crops. Meteorological factors such as minimum temperature and afternoon relative humidity showed a significant positive correlation and morning relative humidity had a significant negative correlation with dead heart. Meanwhile, maximum and minimum temperatures and rainy days recorded a significant negative correlation with white ears. These findings highlighted the critical need for adaptive agricultural strategies that respond to climate variability. Moving forward, strategies such as developing climate-resilient crop varieties and innovative pest management approaches are essential for sustaining rice production and global food security amidst evolving climatic conditions.
ISSN:23943319
00195022
DOI:10.56093/ijas.v95i4.154914