[
Abudulai, M. and Shepard, B. M. 2001, Timing insecticide sprays for control of pod sucking bugs (Pentatomidae, Coreidae, and Alydidae) in cowpea (Vigna unguiculata [L.] Walpers). Journal of Agricultural and Urban Entomology, 18: 51-60.
]Search in Google Scholar
[
Ahmed, A., Sambo, B. E., Arunah, U. L. and Odion, E. C. 2014, Response of farm yard manure and inorganic fertilizers for sustainable growth of carrot (Daucus carota L.) in Northern Nigeria. Journal of Agriculture and Veterinary Science, 7(2): 18-25.10.9790/2380-07221825
]Search in Google Scholar
[
Aikins, S. H. M., and Afuakwa, J. J. 2008, Growth and dry matter yield responses of cowpea to different sowing depths. ARPN Journal of Agricultural and Biological Sciences 3, 5-6.
]Search in Google Scholar
[
Ajeigbe, A. H., Adamu, S. R., and Singh, B. 2012, Yield performance of cowpea as influenced by insecticide types and their combinations in the dry savannas of Nigeria. African Journal of Agricultural Research 7(44), 5930-5938.10.5897/AJAR12.431
]Search in Google Scholar
[
Amit, K., Kaushik D., Sunil, Yadav, K., and Poonam S. 2016, Field efficacy of insecticides and mixture against spotted pod borer, Maruca vitrata Fabricius on Cowpea. Annals of Plant Protection Sciences 24(1), 89-92.
]Search in Google Scholar
[
Association of Official Analytical Chemists (AOAC) 1990, Official Methods of Analysis. 15th edition, pp. 32-37.
]Search in Google Scholar
[
Bohlool, B.B., Ladha, J.K., Garrity, D.P., and George, T. 1992, Biological nitrogen fixation for sustainable agriculture: A perspective. Plant and Soil 141, 1-11.10.1007/978-94-017-0910-1_1
]Search in Google Scholar
[
Carter, M. R., 1992, Soil sampling and methods of analysis. Canadian Soil Society, Lewis Publishers, London. Chemists. Washington D. C.USA. pp, 110-105.
]Search in Google Scholar
[
Centeri, C., Jakab, G., Szabo, S., Farsang, A., Barta, K., Szalai, Z., and Biro, Z. 2015, Comparison of particle-size analyzing laboratory methods. Environmental Engineering and Management Journal 14 (5), 1125-1135.10.30638/eemj.2015.123
]Search in Google Scholar
[
Das, A. C., and Mukherjee, D. 2000, Soil application of insecticides influences microorganisms and plant nutrients. Applied Soil Ecology 14, 55-62.10.1016/S0929-1393(99)00042-6
]Search in Google Scholar
[
FAOSTAT.,2013, Production. FAO Statistics Division. http://faostat.fao.org/. Retrieved 05 February 2015.
]Search in Google Scholar
[
Filimon, N. M., Vola, O. S., Popescu, R., Dumitrescu, G., Ciochina, P. L., Mituletu, M. and Vlad, D. C. 2015, The effect of some insecticides on soil microorganisms based on enzymatic and bacteriological analysis. Romanian Biotechnological Letters, 20(3): 10439-10447.
]Search in Google Scholar
[
Fletcher, R. A., Gilley, A., Davis, T. D., and Sankhla, N. 2000, Triazoles as plant growth regulators and stress protectants. Horticultural Reviews 24,55 – 138.10.1002/9780470650776.ch3
]Search in Google Scholar
[
Fletcher, R. A., and Hofstra, G. 1990, Improvement of uniconazole induced protection in wheat seedlings. Journal of Plant Growth Regulation 9, 207 – 212.10.1007/BF02041964
]Search in Google Scholar
[
Gupta, S. K., Raghava, R. P., and Raghava, N. 2004, Stomatal studies of cowpea (Vigna unguiculata (L.) Walp.) cultivars in relation to bromiconazole. Journal of Indian Botanical Society 83,116 – 119.
]Search in Google Scholar
[
Jackai, L. E. N., and Adalla, C. B. 1997, Pest Management Practices in Cowpea: A review. In Advances in Cowpea Research, edited by Singh B. B., Mohan, D. R., Dashiell, K. E. and Jackai, L. E. N. Copublication of International Institute of Tropical Agriculture IITA and Japan International Research Centre for Agricultural Sciences JIRCAS. IITA, Ibadan, Nigeria Pp, 240-258.
]Search in Google Scholar
[
Kishorekumar, A., Jaleel, C. A., Manivannan, P., Sankar, B., Sridharan, R., Somasundaram, R., and Panneerselvam, R. 2006, Differential effects of hexaconazole and paclobutrazol on the foliage characteristics of Chinese potato (Solenostemon rotundifolius Poir., J. K. Morton) Acta Biologica Szegediensis 50, 127 – 129.
]Search in Google Scholar
[
Konlan, P. S., Abudulai, M., Birteeb, T. P. and Ennin, A. S. 2016, Effect of Lambda-Cyhalothrin Agro-Chemical Spray for Insect Pests Control on Yield and Fodder Quality of Cowpea – Preliminary Findings. International Journal of Livestock Research, 6(5): 51-60.10.5455/ijlr.20160427090139
]Search in Google Scholar
[
Kopittke, P.M., Blamey, F.P., McKenna, B.A., Wang, P., and Menzies, N.W. 2011, Toxicity of metals to roots of cowpea in relation to their binding strength. Environmental Toxicology and Chemistry 30(8), 1827-1833.10.1002/etc.557
]Search in Google Scholar
[
Kusi, F., Nboyine, J.A., Abudulai, M., Seidu, A., Agyare, Y.R., Sugri, I, Zakaria, M., Owusu, R.K., Nutsu, K., and Asamoah, L. 2019, Cultivar and insecticide spraying time effects on cowpea insect pests and grain yield in northern Ghana. Annals of Agricultural Sciences 64, 121-127.10.1016/j.aoas.2019.03.001
]Search in Google Scholar
[
Langyintuo, A. S., Lowenberg-DeBoer, J., Faye, M., Lambert, D., Ibro, G., Moussa, B., Kergna, A., Kushwaha, S., Musa, S., and Ntoukam, G. 2003, Cowpea supply and demand in West and Central Africa. Field Crop Research 82, 215-231.10.1016/S0378-4290(03)00039-X
]Search in Google Scholar
[
Mirajkar, N., and Pope, C. N. 2005, Dimethoate. Encyclopedia of Toxiocology, pp: 47-49.10.1016/B0-12-369400-0/00330-6
]Search in Google Scholar
[
Misra, S.G. and Mani, D. 1994, Adverse effects of Pesticides. In: Agricultural pollution II. (Eds.): S.G. Misra and D. Mani Ashish Publisher, New Dehli.
]Search in Google Scholar
[
Ndiso J. B., Chemining’wa G. N., Olubayo F. M., and Saha H. M 2017, Effects of variety and insecticide spray application on pest damage and yield of cowpea. International Journal of Agricultural Sciences 7 (2), 1248-1257.
]Search in Google Scholar
[
Nkaa, F. A., Nwokeocha, O. W., and Ihuoma, O. 2014, Effect of phosphorous fertilizer on growth and yield of cowpea (Vigna unguiculata). IOSR Journal of Pharmacy and Biological Sciences 9, 74-82.10.9790/3008-09547482
]Search in Google Scholar
[
Nwadinigwe, A.O. 2010. Effects of the Insecticide, Lambda-cyhalothrin on the Growth, Productivity and Foliage Anatomical Characteristics of Vigna unguiculata (L) Walp. African Journals Online 8, 583-587.10.4314/br.v8i1.62537
]Search in Google Scholar
[
Nzenwa, P.O., and Ononuju, C.C. 2011, Nematicidal effects of some plant extracts on egg hatchability and control of Meloidogyne spp. in cowpea (Vigna unguiculata (L.) Walp). African Journal of Plant Science 5(3), 176-182.
]Search in Google Scholar
[
Obidola, S. M., Ibrahim, I. I., Yaroson, A. Y. and Henry, U. I. 2019, Phytotoxicity of Cypermethrin Pesticide on Seed Cowpea (Vigna unguiculata). Asian Journal of Agricultural and Horticultural Reasearch, 3(2): 1-10.10.9734/ajahr/2019/v3i229995
]Search in Google Scholar
[
Oyewale, R. O., Bello, L. Y., Idowu, G. A., Ibrahim, H. M., and Isah, A. S. 2014, Rate of insecticide formulations on the damage assessment, yield and yield components of cowpea. International Journal of Current Microbiology and Applied Sciences 3(2),841-850.
]Search in Google Scholar
[
Oyewale, R. O., and Bamaiyi, L. J. 2013, Management of Cowpea Insect Pests. Scholars Academic Journal of Biosciences 1(5),217-226.
]Search in Google Scholar
[
Pengzhi, Z., Shengli, E., Xiangwei, C., Jifen, D., and Yusen, Z. (2018). Tillage erosion and its effect on spatial variations of soil organic carbon in the black soil region of China. Soil and Tillage Research 178, 72-81. Prashar, P., and Shah, S. 2016, Impact of fertilizers and Pesticides on Soil Microflora in Agriculture. In book: Sustainable Agriculture Reviews 8, 331-362.10.1016/j.still.2017.12.022
]Search in Google Scholar
[
Sartaj, A.T., Shamim, A., and Azam, M.F. 2010, Effect of some pesticides on plant, root nodulation and chlorophyll content of chickpea. Archives of Agronomy and Soil Science 50, 529-533.10.1080/03650340410001729735
]Search in Google Scholar
[
Schmolke, A., Thorbek, P., Chapman, P., and Grimm, V. 2010, Ecological models and pesticide risk assessment: current modeling practice. Environmental Toxicology and Chemistry 29(4),1006–1012.10.1002/etc.120
]Search in Google Scholar
[
Singh, B., Ajeigbe, H. A., Tarawali, S. A., Fernandez-Rivera, S. and Abubakar, M. 2003, “Improving the production and utilization of cowpea as food and fodder”. Field Crops Research 84, 169–150.10.1016/S0378-4290(03)00148-5
]Search in Google Scholar
[
Singh, S. R., Jackai, L. E. N., Santos, J. H. R. and Adalla, C. B. 1990, Insect pest of cowpea. In Insect Pest of Tropical Legumes, pp. 43-89.
]Search in Google Scholar
[
Spiers, J. D., Davies, F. T. Jr., He, C., Heinz, K. M., Bogran, C. E. and Starman, T. W. 2008, Do insecticides affect plant growth and development? Floriculture and Nursery Research Initiative, Texas A & M. University.
]Search in Google Scholar
[
Tu, C.M. 1970, Effect of Four Organophosphorous Insecticides on Microbial Activities in Soil. American Society for Microbiology 19(3), 479-484.10.1128/am.19.3.479-484.1970
]Search in Google Scholar
[
Volodymyr, I.L., Tetiana, M.M., Viktor, V.H., Janet, M.S., and Kenneth, B.S. 2018, Pesticide toxicity: a mechanistic approach. Experimental and Clinical Sciences Journal 17, 1101-1136.
]Search in Google Scholar
[
Wafa T., Onahiba, B., and Lyamine, M. 2017, Impact of pesticides on soil physicochemical characteristics and the biological activity. Journal of chemical and Pharmaceutical Sciences 10(2), 803-808.
]Search in Google Scholar
[
World Health Organization (WHO) 1990. Cyhalothrin, Environmental Health Criteria, 99; Geneva, Switzerland pp, 1-6.
]Search in Google Scholar
[
Zamin, S.S., and Soaliha, A. 2006, Combined effect of pesticide on growth and nutritive composition of soybean plants. Pakistan Journal Botany 38(3), 721-733.
]Search in Google Scholar
