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Incidence of Pest and Natural Enemies in Direct Seeded Rice and Transplanted Rice

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Abstract

Direct seeded rice (DSR) has several economic and environmental benefits over transplanted rice (TPR), such as ease of planting, less water and labour requirement, short crop period, and reduced methane emission. We studied the incidence of pests: brown plant hopper (BPH), white-backed planthopper (WBPH), leaf folder, whorl maggot, yellow stem borer, and natural enemies like spiders and rove beetles in rice under direct seeded and transplanting methods. Results indicated a significantly higher incidence of BPH and WBPH in TPR (4.81 ± 0.66; 0.24 ± 0.04 respectively) compared to DSR (3.22 ± 0.41; 0.006 ± 0.004 respectively). While the overall percent of leaf folder damage was significantly higher in TPR (1.01 ± 0.12), the percentage of white ears was high in DSR (2.83%) compared to TPR (1.87%). However, no significant difference was observed in the whorl maggot damage and natural enemy populations: spiders and rove beetles. The study also revealed a significantly higher yield in TPR (35.06 q/ha) than in DSR (31.13 q/ha). Our findings highlight the varying pest incidence in TPR and DSR with respect to pest species and emphasize the importance of management practices in DSR to maximize yield.

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Acknowledgements

The authors thank the Head, Division of Entomology, ICAR-Indian Agricultural Research Institute, New Delhi, for providing the facilities.

Significance Statement

This study highlights the differences in pest incidence and yields in rice under direct seeding and transplanting. The pest incidence in transplanted and direct seeded rice varies with pest species. So, adopting appropriate management practices in direct seeded rice at the right time helps achieve a higher yield on par with transplanted rice with environmental and economic benefits.

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Authors and Affiliations

  1. ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India

    Vinod K. Padala, Y. N. Venkatesh, S. Rajna & N. Ramya

  2. ICAR-National Centre for Integrated Pest Management, New Delhi, 110012, India

    Subhash Chander

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  1. Vinod K. Padala
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  2. Y. N. Venkatesh
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  3. S. Rajna
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  4. N. Ramya
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  5. Subhash Chander
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Correspondence to S. Rajna.

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Padala, V.K., Venkatesh, Y.N., Rajna, S. et al. Incidence of Pest and Natural Enemies in Direct Seeded Rice and Transplanted Rice. Natl. Acad. Sci. Lett. (2024). https://doi.org/10.1007/s40009-023-01380-2

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  • DOI: https://doi.org/10.1007/s40009-023-01380-2

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