Integrated management of rice leaffolder (Cnaphalocrocis medinalis, Guenée), life cycle, seasonal dynamics, and sustainable control strategies
DOI:
https://doi.org/10.55779/nsb17412766Keywords:
biological control, bio-pesticides, ecological engineering, natural enemies, rice, seasonal abundanceAbstract
Rice is cultivated across diverse agro-ecosystems worldwide, rich in calories and nutrients. Ensuring rice security is fundamental to achieving overall food security. Rice leaffolder (RLF) is one of the significant and major migratory pests, can causes substantial yield losses, particularly during the reproductive stage. RLF undergoes four distinct stages of life cycle; egg-larva-pupa, and adult. Larvae being most destructive, fold rice leaves and feed on chlorophyll-rich tissues, leading to reduced photosynthesis, stunted plant growth, and ultimately lower yields. Year round abundance but peak infestation in September-October coinciding with panicle initiation to heading stage in tropical and sub-tropical region. Prevalence is influence by climate variability and cultural practices, such as excessive nitrogen fertilization and continuous cropping. Its exhibits strong flight capabilities and thrives in environments with high humidity and optimal temperatures from 25-31 °C. Effective-ecologically sound management practices is crucial for RLF management. Cultural management, like balanced fertilization, timely planting, and field sanitation reduce pest habitat suitability. Avoiding early-season insecticide use and conserving natural enemies through ecological-engineering; planting nectar-rich flowering plants along bunds where it can promote populations of predators and parasitoids, which are most active during the vegetative phase. Additionally, sex pheromone traps, botanicals (neem-based products: neem oil; Lantana camera, Azadirachtin) and biopesticides (Bacillus thuringiensis, Beauveria bassiana, Metarhizium anisopliae) have shown efficacy in suppressing the populations. Based on economic threshold levels, diamides (flubendiamide, chlorantraniliprole), Oxadiazine (indoxacarb), nereistoxin (cartap-hydrochloride,) avermectins (emamectin-benzoate) can be judicially used as chemical control. An integrated approach that combines monitoring, forecasting, cultural, ecological, biological, and chemical methods provides an effective and sustainable framework for managing RLF, thereby safeguarding rice production.
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References
Adhikari B, Senapati R, Mohapatra M, Mohapatra L, Nigam R, Mohapatra S (2023). Detection of rice leaf folder, (Cnaphalocrocis medinalis); (Guenée) (Lepidoptera: Crambidae) infestation using ground-based hyperspectral radiometry. Current Science 124(8):964. https://doi.org/10.18520/cs/v124/i8/964-975
Akter S, Roy TK, Haque MM, Alam Z (2024). Effective multidimensional treatment identification of different chemical fertilizers: Response of insect dynamics and rice production. Heliyon 10(11):e32567. https://doi.org/10.1016/j.heliyon.2024.e32567
Ali MP, Nessa B, Khatun M, Salam MU, Kabir M (2021). A way forward to combat insect pest in rice. Bangladesh Rice Journal 25(1):1-22. https://doi.org/10.3329/brj.v25i1.55176
Anil KST, Kiran KGNKC, Moulya MR, Srinivas K, Meena R (2022). Assessing the effectiveness of newer insecticides against rice leaf folder, Cnaphalocrocis medinalis (Crambidae: Lepidoptera). Biological Forum – An International Journal 14(4):552-555.
Babendreier D, Tang R, Horgan FG (2022). Prospects for integrating augmentative and conservation biological control of leaffolders and stemborers in rice. Agronomy 12(12):2958. https://doi.org/10.3390/agronomy12122958
Bari MN, Haque SS, Nowrin F, Ali MP, Kabir MMM, Akter S, Roy TK, Afrin S (2025). Eco-engineering for managing insect pests in rice fields. Bangladesh Rice Journal 27(1):49-60. https://doi.org/10.3329/brj.v27i1.77723
Baruah M, Dutta BC, Borah SR, Bharali A (2023). Organic management approaches of stem borer in rice ecosystem of Assam. Environment and Ecology 41(3B):1680-1685. https://doi.org/10.60151/envec/IGPS1731
Bhojane S, Desai V, Wade P, Jalgaonkar V, Wankhede S, Desai S (2020). Management of major pests infesting rice (Oryza sativa L.) using botanicals. Journal of Entomology and Zoology Studies 8(4):1962-1964.
Bilal M, Hussain M, Umer M, Ejaz N, Noushahi HA, Atta B, Rizwan M (2019). Population incidence and efficacy of chemical control against rice leaffolder (Cnaphalocrocis medinalis Guenee) (Pyralidae: Lepidoptera). Asian Plant Research Journal 2(2):1-7. https://doi.org/10.9734/aprj/2019/v2i230040
BRRI (2022). Modern Rice Cultivation. Bangladesh Rice Research Institute 24. https://knowledgebank-brri.org/wp-content/uploads/2023/01/ADC2022.pdf
Das J, Sahoo B, Panigrahy M, Dangar TK (2023). Genetic polymorphism and plant growth promotion traits of potent fungal entomopathogens of rice leaf folder. Archives of Microbiology 205(5):216. https://doi.org/10.1007/s00203-023-03552-6
Dutta S, Hossain A, Roy N (2023). Bio-ecology and management of major insect pests of rice in West Bengal. Indian Journal of Entomology 86(1):300-318. https://doi.org/10.55446/IJE.2023.1349
FAO (2025). World food situation: FAO Cereal Supply and Demand Brief. https://www.fao.org/worldfoodsituation/csdb/
Fu XW, Li C, Feng HQ, Liu ZF, Chapman JW, Reynolds DR, Wu KM (2014). Seasonal migration of (Cnaphalocrocis medinalis, Lepidoptera: Crambidae) over the Bohai Sea in northern China. Bulletin of Entomological Research 104(5):601-609. https://doi.org/10.1017/S0007485314000376
Haider I, Akhter M, Sabir MA (2014). Evaluation of different insecticides against rice leaffolder (Cnaphalocrocis medinalis, Guenee) Under Field Conditions. Pakistan Journal of Zoology 46(5):1458-1461.
Hajjar MJ, Ahmed N, Alhudaib KA, Ullah H (2023). Integrated insect pest management techniques for rice. sustainability 15(5):4499. https://doi.org/10.3390/su15054499
Hatwar NK, Jalgaonkar VN, Naik KV, Meshram NA, Jadhav A (2025). Assessing the efficacy of solvent based botanical extracts on major rice insect pests in the Konkan region of Maharashtra. Vegetos. https://doi.org/10.1007/s42535-025-01306-x
Hong-xing X, Ya-jun Y, Yan-hui L, Xu-song Z, Jun-ce T, Feng-xiang L, Qiang F, Zhong-xian L (2017). Sustainable management of rice insect pests by non-chemical-insecticide technologies in China. Rice Science 24(2):61-72. https://doi.org/10.1016/j.rsci.2017.01.001
Horgan FG (2017). Insect Herbivores of Rice: Their Natural Regulation and Ecologically Based Management. In: Chauhan B, Jabran K, Mahajan G (Eds). Rice Production Worldwide. Springer, Cham. https://doi.org/10.1007/978-3-319-47516-5_12
Horgan FG, Crisol Martínez E, Stuart AM, Bernal CC, de Cima Martín E, Almazan MLP, Ramal AF (2019). Effects of vegetation strips, fertilizer levels and varietal resistance on the integrated management of arthropod biodiversity in a tropical rice ecosystem. Insects 10(10):328. https://doi.org/10.3390/insects10100328
Islam Z, Catling D (2012). Rice pests of Bangladesh: Their ecology and management. University Press Limited.
Jaglan MS, Chaudhary OP, Chitralekha SS, Ahlawat S, Yadav J (2024). Comparative bio-efficacy of flubendiamide 20 WG against yellow stem borer, Scirpophaga incertulas Walker and leaf folder, Cnaphalocrocis medinalis Guenee, safety to natural enemies and residues in basmati rice under field conditions of semi-arid region of India. International Journal of Tropical Insect Science 44(3):1459-1474. https://doi.org/10.1007/s42690-024-01255-z
Janaki M, Sivadasan Unni PK, Stanley-Raja V, Senthil-Nathan S, Almutairi BO, Abdel-Megeed A (2024). Biocontrol effect of Bacillus subtilis against Cnaphalocrocis medinalis (Guenèe) (Lepidoptera: Pyralidae): A sustainable approach to rice pest management. Agronomy 14(2):310. https://doi.org/10.3390/agronomy14020310
Kamakshi N, Rajasekhar P, Rao GR, Kumar PA, Harathi PN (2020). Diversity of rice leaffolder species and its natural enemies in SPSR Nellore district of Andhra Pradesh. Indian Journal of Plant Protection 43(2).
Karenina T, Herlinda S, Chandra I, Yulia P (2019). Abundance and species diversity of predatory arthropods inhabiting rice of refuge habitats and synthetic insecticide application in freshwater swamps in South Sumatra, Indonesia. Biodiversitas Journal of Biological Diversity 20(8):2375-2387. https://doi.org/10.13057/biodiv/d200836
Kedarnath RTJ, Mallikarjuna L, Biradar V, Rashmi R, Chethan N, Shenoy H, Ashwini SK, Kumar JT (2025). Efficacy of technologies on management of rice leaffolder and yield. International Journal of Economic Plants 12:01-04. https://doi.org/10.23910/2/2025.5723
Kumar GR (2015). Life cycle and abundance of rice leaffolder, Cnaphalocrocis medinalis (Guenee)-A Review. In Journal of Natural Sciences Research 5(15):103-106.
Kumar V, Kumar S (2017). Evaluation of novel groups of insecticides against leaffolder, Cnaphalocrocis medinalis (Guenee) in rice crop. International Journal of Current Microbiology and Applied Sciences 6(9):442-448. https://doi.org/10.20546/ijcmas.2017.609.053
Kumari A, Prasad R (2021). Evaluation of newer insecticides against rice leaf folder (Cnaphalocrocis medinalis; Guenee (Pyralidae: Lepidoptera). Journal of Crop and Weed 17(2):152-159. https://doi.org/10.22271/09746315.2021.v17.i2.1465
Liao QJ, Yang YJ, Wang J, Pang X, Xu CM, Peng CL, Lu ZX, Liu YH (2017). Temperature-dependent development and reproduction of rice leaffolder, Marasmia exigua (Lepidoptera: Pyralidae). PLoS ONE 12(11):e0187972. https://doi.org/10.1371/journal.pone.0187972
Liu H, Han Y, Zhong Y, Ali A, Hou M (2021). Preference and performance of the rice leaf folder, Cnaphalocrocis medinalis, in relation to rice developmental stage. Entomologia Experimentalis et Applicata 169(8):701-710. https://doi.org/10.1111/eea.13038
Lu QS, Chen GH, Gu SG (2020). Comparison of field efficacy of Bacillus thuringiensis and other pesticides against rice leaf roller. Shanghai Agriculture Science and Technology 4:123-124.
Lu Z, Zhu P, Gurr GM, Zheng X, Read DMY, Heong K, Yang Y, Xu H (2014). Mechanisms for flowering plants to benefit arthropod natural enemies of insect pests: Prospects for enhanced use in agriculture. Insect Science 21(1):1-12. https://doi.org/10.1111/1744-7917.12000
Manikandan N, Kennedy JS, Geethalakshmi V (2023). Stage specific life table of rice leaffolder, Cnaphalocrocis medinalis (Guen.) at different temperature regimes. International Journal of Environment and Climate Change 13(3):200-205. https://doi.org/10.9734/ijecc/2023/v13i31699
Manikandan R, Balakrishnan N, Sudhakar D, Udayasuriyan V (2016). Development of leaffolder resistant transgenic rice expressing cry2AX1 gene driven by green tissue-specific rbcS promoter. World Journal of Microbiology and Biotechnology 32(3):37. https://doi.org/10.1007/s11274-015-2006-z
Morshed MN, Mamun MAAl, Nihad SAI, Rahman MM, Sultana N, Rahman MM (2023). Effect of weather variables on seasonal abundance of rice insects in southeast coastal region of Bangladesh. Journal of Agriculture and Food Research 11:100513. https://doi.org/10.1016/j.jafr.2023.100513
Muralidharan K, Pasalu IC (2006). Assessments of crop losses in rice ecosystems due to stem borer damage (Lepidoptera: Pyralidae). Crop Protection 25(5):409-417. https://doi.org/10.1016/j.cropro.2005.06.007
Nayak U, Das A (2020). Farmer participatory assessment of pest management modules for yellow stem borer and leaf folder in summer rice. Oryza-An International Journal on Rice 57(4):315-319. https://doi.org/10.35709/ory.2020.57.4.8
Netam CS, Gupta AK (2015). Seasonal incidence of rice leaf folder Cnaphalocrocis medinalis (Guen.) in agro climatic condition of at baster plateau zone. Annals of Plant and Soil Research 17(1):24-28.
Nilamudeen M, Sudharma K (2020). Entomopathogenic fungi for managing the rice leaf roller, Cnaphalocrocis medinalis Guen. Journal of Entomology and Zoology Studies 8(4):2331-2336.
Padmavathi C, Katti G, Sailaja V, Padmakumari AP, Jhansilakshmi V, Prabhakar M, Prasad YG (2013). Temperature thresholds and thermal requirements for the development of the rice leaffolder, Cnaphalocrocis medinalis. Journal of Insect Science 13(96):1-14. https://doi.org/10.1673/031.013.9601
Priya P, Ankita (2024). Field efficacy of newer insecticides against leaf folder (Cnaphalocrocis medinalis Gn.) in rice. International Journal of Research in Agronomy 7(7S):411-413. https://doi.org/10.33545/2618060X.2024.v7.i7Sf.1078
Rajadurai G, Sudhakar D, Varanavasiappan S, Balakrishnan N, Udayasuriyan V, Natarajan N (2023). Adult oviposition preference and larval performance of Cnaphalocrocis medinalis Guenee (Pyralidae: Lepidoptera) on transgenic Bt rice. International Journal of Tropical Insect Science 43(3):1037-1048. https://doi.org/10.1007/s42690-023-01026-2
Rajpoot S, Singh K, Parkash N, Giri S, Singh D, Singh R, Upadhyay A, Kumar T (2020). Efficacy of biopesticide on stem borer and leaffolder of rice in Eastern U.P. International Journal of Current Microbiology and Applied Sciences 10(SP):151-157.
Randhawa HS, Aulakh SS, Saini MK (2018). Evaluation of insecticides against stem borer and leaf folder in basmati rice. Indian Journal of Entomology 80(3):715. https://doi.org/10.5958/0974-8172.2018.00229.8
Rao PC, Rao CVR, Kumar DVSR, Kumari VP (2018). Evaluation of newer insecticide molecules against rice leaffolder, Cnaphalocrocis medinalis Guenee in dry direct sowing method of rice cultivation. The Andhra Agriculture Journal, 65(4):902-907.
Rautaray B, Bhattacharya S, Dash S (2020). Effect of weather parameters on the seasonal incidence of rice leaf folder (Cnaphalocrocis medinalis, Gunee). International Journal of Chemical Studies 8(6):763-766. https://doi.org/10.22271/chemi.2020.v8.i6k.10861
Reddy BS, Chaudhari BN, Sanap P (2023a). Evaluation of insecticides for the management of leaffolder in rice crop. Biological Forum – An International Journal 15(1):182-188.
Reddy LPV, Rao SRK, Krishna TM, Rao CHS (2023b). Comparative field efficacy of certain insecticides against paddy leaf folder infestation. International Journal of Plant & Soil Science 35(23):139-150. https://doi.org/10.9734/ijpss/2023/v35i234226
Rizwan M, Atta B, Sabir AM, Yaqub M, Qadir A (2019). Evaluation of the entomopathogenic fungi as a non-traditional control of the rice leaf roller, Cnaphalocrocis medinalis (Guenee) (Lepidoptera: Pyralidae) under controlled conditions. Egyptian Journal of Biological Pest Control 29(1):10. https://doi.org/10.1186/s41938-019-0111-2
Roy TK, Biswas MA, Tonmoy SMMS, Nayeem A, Hossain MM, Sannal A (2025). Management of rice leaffolder (Cnaphalocrocis medinalis Guenée) in Bangladesh: Evaluating the pesticidal efficacy of some botanicals an eco-friendly alternative. Journal of Natural Pesticide Research 100152. https://doi.org/10.1016/j.napere.2025.100152
Roy TK, Kabir MMM, Akter S, Nayeem A, Alam Z, Hasan MR, Bari MN, Sannal A (2024). Seasonal variations of insect abundance: Correlating growth stage-specific metrics with weather patterns in Rangpur Region, Bangladesh. Heliyon 10(18):e38121. https://doi.org/10.1016/j.heliyon.2024.e38121
Seni A, Pal R, Mohapatra S, Mandal D, Bansude SK, Seth P, Barla S, Sahu J (2025). Pesticidal plant extract effect against major lepidopteran insect pests and their natural enemies in rice Oryza sativa L. Frontiers in Insect Science 4:1500542. https://doi.org/10.3389/finsc.2024.1500542
Sharma S, Shera PS, Sangha KS (2020). Species composition of parasitoids and predators in two rice agro-farming systems—effect of ecological intensification. International Journal of Tropical Insect Science 40(2):233-238. https://doi.org/10.1007/s42690-019-00072-z
Sharmila R, Radhakrishnan V, Shanmugam PS, Sendhilvel V, Harish S (2023). Pathogenicity of Beauveria bassiana (Balsamo) vuillemin isolate (TNAU ENT BB1) against rice leaffolder, Cnaphalocrocis medinalis (Guenee) in In-vitro (Laboratory) conditions. International Journal of Environment and Climate Change 13(10):472-477. https://doi.org/10.9734/ijecc/2023/v13i102669
Shultana R, Ali Tan KZ, Rana M, Roy TK, Naher UA, Ibne Baki MZ, Khan MAI, Akter R, Paul PL, Shupta, SA, Islam MS, Hasan AK (2025). Exploring the impact of agricultural pesticides on soil microbes: A comprehensive review. Egyptian Journal of Soil Science 65(3). https://doi.org/10.21608/ejss.2025.371094.2081
Shyamrao ID, Raghuraman M (2019). Management of leaf folders, Cnaphalocrocis medinalis (Linnaeus) through conventional and newer insecticides in rice ecosystem of Varanasi region. Journal of Entomology and Zoology Studies 7(2):206-209.
Wang FY, Yang F, Lu MH, Luo SY, Zhai BP, Lim KS, McInerney CE, Hu G (2017). Determining the migration duration of rice leaf folder (Cnaphalocrocis medinalis (Guenée) moths using a trajectory analytical approach. Scientific Reports 7(1):39853. https://doi.org/10.1038/srep39853
Wu J, Wu X, Chen H, Xu L, Liu G, Mao B, Quo R, Du Y (2013). Optimization of the sex pheromone of the rice leaffolder moth Cnaphalocrocis medinalis as a monitoring tool in China. Journal of Applied Entomology 137(7):509-518. https://doi.org/10.1111/jen.12024
Xia L, Zhang R, Chen L, Li L, Yi T, Chen M (2024). Monitoring the leaf damage by the rice leafroller with deep learning and ultra‐light (UAV). Pest Management Science 80(12):6620-6633. https://doi.org/10.1002/ps.8401
Yajun Y, Yanhui L, Junce T, Xusong Z, Jiawen G, Xiaowei L, Zhongxian L, Hongxing X (2025). Sustainable management strategies for rice leaffolder, Cnaphalocrocis medinalis (Guenée): Progress and Prospects. Rice Science 32(3):322-338. https://doi.org/10.1016/j.rsci.2024.12.011
Yang Y, Liao Q, Mo X, Xu H, Xie X, Peng C, Liu Y, Lu Z (2024). Differences in responses to a fluctuating temperature/humidity environment between two related species of rice leaffolders based on a comparison in a constant environment. Journal of Asia-Pacific Entomology 27(1):102212. https://doi.org/10.1016/j.aspen.2024.102212
Zang LS, Wang S, Zhang F, Desneux N (2021). Biological control with Trichogramma in China: History, present status, and perspectives. Annual Review of Entomology 66(1):463-484. https://doi.org/10.1146/annurev-ento-060120-091620
Zhao X, Xu H, Yang Y, Sun T, Ullah F, Zhu P, Lu Y, Huang J, Wang Z, Lu Z, Guo J (2024). Defense responses of different rice varieties affect growth performance and food utilization of Cnaphalocrocis medinalis larvae. Rice 17(1):9. https://doi.org/10.1186/s12284-024-00683-2
Zhu P, Zheng X, Johnson AC, Chen G, Xu H, Zhang F, Yao X, Heong K, Lu Z, Gurr GM (2022). Ecological engineering for rice pest suppression in China. A review. Agronomy for Sustainable Development 42(4):69. https://doi.org/10.1007/s13593-022-00800-9
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