Article Details: Received: 2018-06-11 | Accepted: 2018-09-06 | Available online: 2018-09-31 https://doi.org/10.15414/afz.2018.21.03.108-112 A Field experiment was conducted in 2014 to determine insect pests associated with cucumber in Ogbomoso (Southern Guinea Savanna), Oyo-state Nigeria. Market More and Pointset cucumber varieties were used as treatments. Data were collected at three different phonological growth stages with damaged they caused. Data collections commenced at 2 weeks after planting (WAP) and were on weekly basis for six weeks. Four major insect pests observed were Phyllotreta cruciferae Fabricius, Diabrotical undecimpunctata Howardi Barber, Epilachna vigintiopunctata Fabricius and Monolepta spp Coquilletta on the two varieties observed. Except Epilachna, which belong to the family Coccinellidae others are from the family Chrymesolidae. Also, all the insects pest recorded the highest population at seedling and the population reduces at flowering to fruiting stage while Epilachna recorded the highest population at fruiting stage. The same trend was also observed for distribution across the age of the plant. Keywords: Cucumber, insect pest, Epilachna vigintiopunctata, population species and Market more References ADETULA O., DENTON L. (2003) Performance of vegetative and yield accessions of cucumber (Cucumis sativa L.). In Horticultural Society of Nigeria (HORTSON) Proceedings of 21st Annual Conference. doi: https://doi.org/10.5897/ JABSD2015.0239 BAKRE, S. et al. (2004) Cadmium, lead and mercury in fresh and boiled leafy vegetables grown in Lagos, Nigeria. Environmental Technology, vol. 25, no. 12, pp. 1367–1370. doi: https://doi.org/10.1080/09593332508618465 BIDEIN T. et al. (2016). Efficacy of combining varietal resistance with organic fertilizer application in reducing infestation of cucumber (Cucumis sativus L.) by Insect Pests in the Niger Delta. American Eurasian Journal of Agriculture & Environmental. Science, vol. 16, no. 3, pp. 532–542. doi: https://doi.org/10.5829/idosi.aejaes.2016.16.3.12868 BURGESS, L. and SPURR, D.T. (1984) Distribution and abundance of overwintering flea beetles (Coleoptera: Chrysomelidae) in a grove of trees. Environmental Entomology, vol. 13, pp. 941–944. doi: https://doi.org/10.1093/ee/13.4.941 EKWU, L. G. et al. (2007) Vegetative growth and yield response of cucumber (L) to nitrogen and phosphorus fertilizer. In Proceedings of the 20 Annual Conference of Horticultural Society of Nigeria (HORTSON) May 14th–17th, pp.117–200. FAOSTAT (2008) Statistical database of Food and Agriculture Organization of the United Nations. GHALLAB, M M. et al. (2011) Sensitivity of four cucumber cultivars to some piercing sap sucking pests infestation and their impact on yield. Plant Protection Research Institute, vol. 89, no. 4, 1363. GRZYWACZ, D. et al. (2014) The use of indigenous ecological resources for pest control in Africa. Food security, vol. 6, pp. 71–86. KAREIVA, P. (1982) Exclusion experiments and the competitive release of insects feeding on collards. Ecology, vol. 62, pp. 696–704. KHAN, M.W. et al. (1991) Toxicity of crude neem extracts (N-4) and (N-9) against the late 2nd instar larvae of Musca domestica (PCSIR strain). Pak. J. Pharm. Sci., vol. 4, no. 1, pp. 77–86. KUHAR, T. P. and SPEESE, J. (2002) Cucumber Beetle Management in Melons. Vegetable, Virginia Small Fruit and Specialty Crops. Virginia State University in Virginia. INDRA, P.S. and KAMINI, V. (2003) Control of flea beetle, Phyllotreta nemorum L. (Coleoptera: Chrysomelidae) using locally available natural resources. Himalayas Journal of Science, no. 2, pp. 111–114. MAYOORI, K. and MIKUNTHAN, G. (2009) Damage pattern of cabbage flea beetle Phyllotreta cruciferae (Goeze) (Coleoptera: Chrysomelidae), and its associated hosts of crops and weeds. American-Eurasian Journal of Agriculture and Environmental Sciences, vol. 6, no. 3, pp. 303–307. MISHCHENKO, S. et al. (2017) Phenological growth stages of hemp (Cannabis sativa L.): codification and description according to the BBCH scale. Žemės Ūkio Mokslai, vol. 24, no. 2, pp. 31–36. PARACHNOWITSCH, A. L. et al. (2012) Phenotypic selection to increase floral scent emission, but not flower size or colour in bee-pollinated Penstemon digitalis. New Phytol., vol. 195, pp. 667–675. ROOT, R. B. (1973) Organization of a plant-arthropod association in simple and diverse habitats: The fauna of collards (Brassica oleracea). Ecological Monographs, vol. 43, pp. 95–124. SELLECK, G.W. and OPENA, R.T. (1985) National Programs: the need for increased emphasis on the development of vegetables and Legumes in: Non-Womdim. An overview of major virus diseases of vegetable crops in Africa, pp. 213–231. SEBASTIAN P. et al. (2010) Cucumber (Cucumis sativus) and melon (C. melo) have numerous wild relatives in Asia and Australia. Proceedings National Academic Science U.S.A, vol. 107, pp. 14269–14273. doi: https://doi.org/10.1073/pnas.1005338107 YAMAGUCHI, M. (1993) World Vegetables. Department of Vegetable Crop. University of California.