Agroecological zones influence maize infestation and damage severity by the fall armyworm (Spodoptera frugiperda [J. E. Smith, 1797]) in southwestern Nigeria

Olusegun Adebayo OJUMOOLA, Adebayo Amos OMOLOYE


The fall armyworm (Spodoptera frugiperda) is an invasive and highly destructive insect pest that has caused extensive damage to maize in Africa since its first report on the continent in 2016. Information on fall armyworm infestation and damage within African agroecologies is essential for the development of appropriate pest management strategies, but these are scant in Nigeria. Consequently, in this study, fall armyworm infestation levels and severity of damage to maize in the three major maize-growing agro-ecological zones (humid forest, derived savanna, and southern guinea savanna) of southwestern Nigeria was investigated using standard field sampling protocols. Results showed that maize infestation and damage severity varied across agroecological zones, with the humid forest being the most impacted. Information provided will enhance decision-making for effective management of the fall armyworm in southwestern Nigeria.


agroecology; foliar damage; larval infestation; Spodoptera frugiperda; farm sampling; humid forest; derived savanna; guinea savanna

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Aderolu, A. I., Omoloye, A.A. & Okelana, A. F. (2013). Occurrence, abundance and control of the major insectpests associated with amaranth in Ibadan, Nigeria. Entomology, Ornithology and Herpetology Current Research, 2, 97112.

Baudron, F., Mainassara Abdou Zaman-Allah, M. A., Chaipa, I., Chari, N. & Chinwada, P. (2019). Understanding the factors influencing fall armyworm Spodoptera frugiperda J.E. Smith damage in African smallholder maize fields and quantifying its impact on yield. A case study in Eastern Zimbabwe. Crop Protection, 120, 141–150.

CABI [Centre for Agriculture and Bioscience International]. (2020). Invasive Species Compendium. Fall Armyworm Portal.

Cadoux, S., Sauzet, G., Valantin-Morison, M., Pontet, C., Champolivier, L., Robert, C., Lieven, J., Flénet, F., Mangenot, O., Fauvin. P. et al. (2015). Intercropping frost-sensitive legume crops with winter oilseed rape reduces weed competition, insect damage, and improves nitrogen use efficiency. OCL Oilseeds and Fats Crops and Lipids, 22(3),

Capinera, J. L. (1999). Fall armyworm Spodoptera frugiperda (J.E. Smith) (Insecta: Lepidoptera: Noctuidae). Featured creatures from the Entomology and Nematology Department, Florida Cooperative Extension Service, University of Florida EENY-98

Chimweta, M, Nyakudya, I.W., Jimu, L. & Mashingaidze, A. B. (2019). Fall armyworm [Spodoptera frugiperda (J.E. Smith)] damage in maize: management options for flood-recession cropping smallholder farmers. International Journal of Pest Management.

Clark, M. S., Luna, J. M., Stone, N. D. & Youngman, R. R. (1993). Habitat preferences of generalist predators in reduced-tillage corn. Journal of Entomological Science, 28, 404–416.

Dal Pogetto, M. H. F. A., Prado, E. P., Gimenes, M. J., Christovam, R. S., Rezende, D.T., Aguiar-Junior, H. O., Costa, S. I. A. & Raetano, C. G. (2012). Corn yield with reduction of insecticidal sprayings against fall armyworm Spodoptera frugiperda (Lepidoptera: Noctuidae). Journal of Agronomy, 11, 17-21.

Day, R., Abrahams, P., Bateman, M., Beale, T., Clottey, V., Cock, M., Colmenarez, Y., Corniani, N., Early, R., Godwin, J., Gomez, J., Gonzalez Moreno, P., Murphy, S.T., Oppong-Mensah, B., Phiri, N. C., Silvestri, S. & Witt, A. (2017). Fall armyworm: impacts and implications for Africa. Outlooks on Pest Management, 28, 196-201.

De Groote, H., Kimenju, S. C., Munyua, B., Palmas, S., Kassie, M. & Bruce, A. (2020). Spread and impact of fall armyworm (Spodoptera frugiperda J.E. Smith) in maize production areas of Kenya. Agriculture, Ecosystems and Environment, 292, 106804.

FAO, Food and Agriculture Organization of the United Nations (2018). Integrated management of the fall armyworm on maize: a guide for farmer field schools in Africa. Rome, Italy: FAO. 23.01.2019

Finch, S. & Collier, R. H. (2012). The influence of host and non-host companion plants on the behaviour of pest insects in field crops. Entomologia Experimentalis et Applicata, 142, 87– 96.

Goergen, G., Kumar, P. L., Sankung, S. B., Togola, A. & Tamò, M. (2016). First report of outbreaks of the fall armyworm Spodoptera frugiperda (J E Smith) (Lepidoptera, Noctuidae), a new alien invasive pest in West and Central Africa. PLoS ONE. 11(10), e0165632.

Hailu, G., Niassy, S., Zeyaur, K. R., Ochatum, N. & Subramanian, S. (2018). Maize–legume intercropping and push–pull formanagement of fall armyworm, stemborers, and Striga in Uganda. Agronomy Journal, 110, 2513-2522.

Hay-Roe, M. M., Meagher, R. L., Nagoshi, R. N. & Newman, Y. (2016). Distributional patterns of fall armyworm parasitoids in a corn field and a pasture field in Florida. Biological Control, 96, 48–56.

Huesing, J. E., Prasanna, B. M., McGrath, D., Chinwada, P., Jepson, P. and Capinera, J. L. (2018). Integrated pest management of fall armyworm in Africa: an introduction. In: Fall Armyworm in Africa: A Guide for Integrated Pest Management. Prasanna, B.M., Huesing, J.E., Eddy, R., Peschke, V.M. Eds.). CIMMYT, Mexico, CDMX, 1–10.

IBM SPSS (2011). IBM SPSS Statistics for Windows, Version 20.0. Armonk, NY: IBM Corp.

ICIPE, International Centre of Insect Physiology and Ecology (2020). ICIPE launches mass release of indigenous natural enemies to control fall armyworm.

Koffi, D., Agboka, K., Adenka, K. D., Osae, M., Tounou, A. K., Adjevi, M. K. A., Fening, K. O. & Meagher Jr, R. L. (2020). Maize infestation of fall armyworm (Lepidoptera: Noctuidae) within agro-ecological zones of Togo and Ghana in West Africa 3 yr after its invasion. Environmental Entomology, 49(3), 645–650.

Landis, D. A., Wratten, S. D. & Gurr, G. M. (2000). Habitat management to conserve natural enemies of artheopods pests in agriculture. Annual Review of Entomology, 45, 175–201.

Liu, T., Wang, J., Hu, X & Feng, J. (2020). Land-use change drives present and future distributions of fall armyworm, Spodoptera frugiperda J.E. Smith (Lepidoptera: Noctuidae). Science of the Total Environment. 706, 135872.

McGrath, D., Huesing, J. E., Beiriger, R., Nuessly, G., Tepa-Yotto, T. G., Hodson, D., Kimathi, E., Felege, E., Abah Obaje, J., Mulaa, M., Mendes, A. P., Amer Mabrouk, A. F. & Belayneh, Y. (2018). Monitoring, surveillance, and scouting for fall armyworm. In: Fall Armyworm in Africa: A Guide for Integrated Pest Management. Prasanna, B.M., Huesing, J.E., Eddy, R., Peschke, V.M. (Eds.), Mexico, CDMX. 11–28.

Microsoft Excel (2019). Microsoft Office Excel for Windows, Version 16.0.

Midega, C. A. O., Pittchar, J. O., Pickett, J. A., Hailu, G. W. & Khan, Z. R. (2018). A climate-adapted push-pull system effectively controls fall armyworm, Spodoptera frugiperda (J E Smith), in maize in East Africa. Crop Protection, 105, 10–15.

Montezano, D. G., Specht, A., Sosa-Gómez. A. D. R., Roque-Specht, V. F., Sousa-Silva, J. C., Paula-Moraes, S.V., Peterson. J. A. & Hunt, T. E. (2018). Host plants of Spodoptera frugiperda (Lepidoptera: Noctuidae) in the Americas. African Entomology, 26(2), 286–300.

Moraes, T., Ferreira Da Silva, A., Leite, N. A., Karam, D. & Mendes, S. M. (2020). Survival and development of fall armyworm (Lepidoptera: Noctuidae) in weeds during the off-season. Florida Entomology, 103, 288–292.

Morales, X. C., Tamiru, A., Sobhy, I. S., Bruce, T. J. A., Midega, C. A. O. & Khan, Z. (2021). Evaluation of African maize cultivars for resistance to fall armyworm Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) larvae. Plants, 10, 392.

Murúa, M., Juárez, M., Prieto, S., Gastaminza, G & Willink, E. (2009). Distribución temporal y espacial de poblaciones larvarias de Spodoptera frugiperda (Smith) (Lep.: Noctuidae) en diferentes hospederos en provincias del norte de la Argentina. [Temporal and spatial distribution of larval populations of Spodoptera frugiperda (Smith) (Lepidoptera: Noctuidae) in different hosts in the northern provinces of Argentina.]. Revista Industrial y Agrícola de Tucumán, 86, 25–36.

Mutyambai, D. M., Niassy, S., Calatayud, P. -A. & Subramanian, S. (2022). Agronomic factors influencing fall armyworm (Spodoptera frugiperda) infestation and damage and its cooccurrence with stemborers in maize cropping systems in Kenya. Insects, 13, 266.

Odeyemi, O. O., Lawal, B. O., Owolade, O. F., Olasoji, J. O., Egbetokun, O. A., Oloyede- Kamiyo, Q. O., Omodele, T. & Anjorin, F. B. (2020). Fall armyworm Spodoptera frugiperda (J. E. Smith) (Lepidoptera: Noctuidae): threat to maize production in Nigeria.Nigerian Journal of Agriculture, 51(1), 101–108.

Ojumoola, O. A., Omoloye, A. A. & Umeh, V. C. (2022). Seasonal differences in fall armyworm, Spodoptera frugiperda (Lepidoptera: Noctuidae), abundance and plant injury on selected maize varieties in Ibadan, Southwest Nigeria. International Journal of Pest Management, DOI:

Olaniyan, A. B. (2015). Maize: Panacea for hunger in Nigeria. African Journal of Plant Sciences. 9(3), 155-174.

Onyeka, T. J., Owolade, O. F., Ogunjobi, A. A., Dixon, A. G. O., Okechukwu, R., Bandyopadhyay, R. & Bamkefa, B. (2008). Prevalence and severity of bacterial blight and anthracnose diseases of cassava in different agroecological zones of Nigeria. African Journal of Agricultural Research, 3, 297–304.

Oyenuga, V. A. (1967). Agriculture in Nigeria. Food and Agriculture Organization of the United Nations). FAO, Rome, Italy. 308 pp

Prasanna, B. M., Bruce, A., Winter, S., Otim, M., Asea, G., Sevgan, S., Ba, M., van den Berg, J., Beiriger, R., Gichuru, L., Trevisan, W., Williams, P., Oikeh, S., Edge, M., Huesing, J. E. & Powell, T. (2018). Host plant resistance to fall armyworm. In: Fall Armyworm in Africa: A Guide for Integrated Pest Management. B.M. Prasanna, J.E. Huesing, R. Eddy, V.M. Peschke (Eds.), Mexico, CDMX. 45–62.

Rivers, A., Barbercheck, M., Govaerts, B. & Verhulst, N. (2016). Conservation agriculture affects arthropod community composition in a rainfed maize-wheat system in central Mexico. Applied Soil Ecology, 100, 81–90.

Sims, S. R. (2008). Influence of soil type and rainfall on pupal survival and adult emergence of the fall armyworm (Lepidoptera: Noctuidae) in southern Florida. Journal of Entomological Science, 43(4), 373–380.

Sowunmi F. A. & Akintola J. O. (2010). Effect of climatic variability on maize production in Nigeria. Research Journal of Environmental and Earth Sciences, 2(1), 19-30.

Sparks, A. N. (1979). Review of the biology of the fall armyworm (Lepidoptera, Noctuidae). Florida Entomologist. 62, 82–87.

Trdan, S., Znidarčič, D., Valič, N., Rozman, L. & Vidrih, M. (2006). Intercropping against onion Thrips, Thrips tabaci Lindeman (Thysanoptera: Thripidae) in onion production: on the suitability of orchard grass, lacy phacelia, and buckwheat as alternatives for white clover. Journal of Plant Diseases and Protection, 113(1), 24-30.



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