| Issue |
BIO Web Conf.
Volume 189, 2025
11th International Conference on Sustainable Agriculture, Food, and Energy (SAFE 2025)
|
|
|---|---|---|
| Article Number | 01004 | |
| Number of page(s) | 12 | |
| Section | Sustainable Agriculture, Food, and Energy | |
| DOI | https://doi.org/10.1051/bioconf/202518901004 | |
| Published online | 09 October 2025 | |
Ecological Management of Insect Pests in Rice (Oryza sativa L.) Using Refugia Plants and Biopesticides: A Case Study in Northern Sumatera, Indonesia
1 Faculty of Agriculture, University Sumatera Utara, Jl. Dr. A. Sofyan No. 3, Medan 20155, Sumatera Utara, Indonesia
2 College of Agriculture and Related Sciences, University of Southeastern Philippines, Tagum City, Davao del Norte, Philippines
3 Faculty of Mathematics and Natural Sciences, University Sumatera Utara, Jl. Biotechnology No.1, Medan 20155, Sumatera Utara, Indonesia
4 Faculty of Engeneeering, University Sumatera Utara, Jl. Almamater Medan 20155, Sumatera Utara, Indonesia
* Corresponding author: ameilia@usu.ac.id; rcjoshi@usep.edu.ph
This study evaluated the ecological management of insect pests in rice (Oryza sativa L.) through the integrated use of refugia plants (Zinnia elegans Jacq., Cosmos caudatus Kunth, Tagetes erecta L.), biopesticides (Carica papaya L. leaf extract, Cocos nucifera L., water, PGPR, and Beauveria bassiana), and control in Lubuk Bayas Village, Northern Sumatera, Indonesia. A total of 21 insect species from 13 families and 6 orders were recorded across both treatment and control plots. Rice fields incorporating refugia and biopesticides demonstrated significantly higher insect abundance (2,686 individuals) compared to control plots (1,678 individuals). Furthermore, these ecologically managed fields exhibited greater species richness (R′ = 0.29 vs. 0.14 in controls), greater evenness (E= 0.85 vs. 0.56 in controls), and increased diversity (H′ = 2.86 vs. 2.27 in controls). The results showed that the ANOVA test was not significant between the use of refugia, but was significant for biopesticide and control. These findings highlight the substantial potential of integrating refugia plants with biopesticides as a sustainable strategy to enhance insect biodiversity and foster ecological pest regulation within rice agroecosystems. Ultimately, this approach can contribute to improved rice productivity and strengthen national food security in Indonesia.
© The Authors, published by EDP Sciences, 2025
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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