Effect of Selected Plant Materials against Insect Pest Infestation of Stored Cassava (Manihot esculenta Crantaz) Chips

Moses Emmanuel Sambo¹ , Emmanuel Okrikata²

Section:Research Paper, Product Type: Journal-Paper
Vol.8 , Issue.4 , pp.30-34, Aug-2021

Online published on Aug 31, 2021

Copyright © Moses Emmanuel Sambo, Emmanuel Okrikata . This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
 

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Abstract :
Over 500 million people depend on Cassava (Manihot esculenta Crantaz) for dietary energy and research has shown that storage for just 4-6 months causes damage and losses (25-75%) due to insect pest infestations. This study is thus designed to determine the dominant insect species associated with stored cassava chips and evaluate the suppressive effect of selected plant products on pestiferous species. The study was conducted in Wukari, Nigeria (latitude 7.89N and longitude 9.77E) from January-October, 2020. The experiment consists of 5 treatments (leaves of Vernonia amygdalina, Azdirachta indica and Bombax ceiba flowers all at 100g per kg of chips; Permethrin powder at 2.0g per kg of chips and untreated control) in 4 replications of bags filled with 10 kg of cassava chips. Gallery counts were taken at 2 months interval and insect identification (including their counts and abundance) was computed at the end of the storage period. Variation in number (mean) of galleries and insects count among the treatments was compared by variance analysis after appropriate transformation. Significantly different means compared by Student Newman Keul’s Test and presented in bar charts. The relationship between pest insect count and gallery was determined by correlation and linear regression analysis. The result shows that, difference in infestation of dominant insects across treatments were significant among treatments except for R. litoralis (F=2.79, p=0.06). Untreated chips had higher number of insects (range; 9.75±4.59-13.25±3.64) while, Permethrin powder treated chips had the least number of insect counts (range; 0.50±0.50-1.75±1.03). Among the plant based treatments, A. indica had the least infestation (range; 1.00±0.71-5.50±2.72). Contrarily, B. ceiba treated chips consistently had higher presence of insects (range; 6.00±0.81-11.50±7.86). The number of galleries were positively and insignificantly (r = 0.82; p = 0.093) correlated with pest insects. Of the plant-based products used, neem leaf (A. indica) was most effective.

Key-Words / Index Term :
Insect pest, Cassava chips storage, Plant materials, Infestation, Integrated pest management, Damage and loss

References :
[1] E.N. Nwankwo, N.J. Okonkwo, and R.I. Egwuatu. Lenght of exposure and quantal responses of four strains of Prostephanus truncatus (Horn) (Coleoptera: Bostrichidae) strains to Pyrethroid insecticides. International Journal of Science and Technoledge, 2(6): 147 – 154, 2015
[2] K.O. Falade, J.O. Akingbala. Utilization of cassava for food. Food Reviews International, 27: 51 – 83, 2010.
[3] A.E. Burns, J.H. Bradbury, T.R. Cavagnaro, R,M, Gleadow. Total cyanide content of cassava food products in Australia. Journal of Food Composition and Analysis, 25, 79–82, 2012.
[4] A.C. Bellotti. Cassava pests and their management. Encyclopedia 2389 of entomology, 2nd Edition. Capinera J. L. (ed.), Springer, Netherlands, 2391, 2008.
[5] R.S. Amoah, L.K. Sam-Amaoh, C.A. Boahen, F. Duah. Estimation of the material losses and garri rat e during the processing of varieties and ages of cassava into garri. Asian Journal of Agricultural Research, 4:71-79, 2010.
[6] E.N. Chijindu, B.A. Boateng, J.N. Ayertey, A.R. Cudjoe, N.J. Okonkwo. The effect of processing of cassava chips on the development of P. truncatus (Horn) (Coleoptera: Bostrichidae). African Journal of Agricultural Research, 3(8):537-541, 2008.
[7] P. Vernier, E.K. N’Kpenu, G.C. Orkwor. Comparative analysis of chip-oriented yams production in three countries (Benin, Nigeria, Togo), in Akoroda, M. O., and Ngeve, J. M., Root Crops in the 21st Century, Proceeding of the 7th Triennial Symposium of ISTRC –Africa Branch, 11–17 October 2001, Cotonou, Bénin, pp 759–773, 2001.
[8] G. Hyman, A. Bellotti A.. Threats to cassava production: known and potential geographic distribution of four key biotic constraints. Food security, 3(3):329-345, 2011.
[9] I. Ogiehor, M. Ikenebomeh. The effects of different packaging materials on the shelf stability of garri. African Journal of Biotechnology, 5, 741–745, 2016.
[10] R. Espinal. Production and utilization of cassava in Nigeria: prospect of food security and infant nutrition production agriculture and technology. Journal of Stored Product, 2: 35-40, 2010.
[11] T. Tefera, S. Mugo, P. Likhayo, Y. Beyene. Resistance of three-way cross experimental maize hybrids to post-harvest insect pests, the larger grain borer (Prostephanus truncatus) and maize weevil (Sitophilus zeamais). International Journal of Tropical Insect Science, 31: 3 – 12, 2011.
[12] R.J. Hodges, J. Meikle, H. Denton. Infestation of dry cassava (Manihot esculenta Crantz) by Prostephanus truncatus (Horn) (Coleoptera: Bostrichidae). Journal of Stored Products Research, 20: 205 – 213, 2002.
[13] A. Stewart-Jones, D.I. Ferman, D.R. Hall. Prey-specific contact kairomones exploited by adult and larval Teretrius nigrescens: A behavioral comparison across different stored product pests and different pest substrates. Journal of Stored Products Research. 43. (3) 265-275, 2007.
[14] J. Meikle, H. Denton. Infestation of dry cassava (Manihot esculenta Crantz) by Prostephanus truncatus (Horn) (Coleoptera: Bostrichidae). Journal of Stored Products Research, 20: 205 – 213, 2002.
[15] S.A. Adesuyi, S.A. Osuji. The problems of insect infestation of stored yam chips in Nigeria, Proceedings of the Second International Working Conference on Stored-Product Entomology, 10–16 September 2000, IITA, Ibadan, Nigeria, pp 314–319. 2000.
[16] B.V. Herrera, G. Hyman, A. Bellotti. Threats to cassava production: known and potential geographic distribution of four key biotic constraints. Food security, 3(3):329-345, 2011.
[17] E. Okrikata, E.O. Ogunwolu, M.U. Ukwela. Efficiency and economic viability of neem seed oil emulsion and cyper-diforce® insecticides in watermelon production within the Nigerian Southern Guinea Savanna Zone. Journal of Crop Protection, 8(1): 81 – 101, 2019.
[18] Okrikata, E. Present views, status and updates in Biopesticide usage. In: Biopesticides: Botanicals and microorganisms for improving agriculture and human health [Timothy O. Adejumo and Ralf T. Vögele (Editors)]. Pp 249 – 280, 2021.
[19] C. Buelletin, W.G. Meikle, D. Scholz, D. Adda, R.H. Markham. Seasonal and meteorological factors influencing the annual flight cycle of Prostephanus truncatus (Horn) (Coleoptera: Bostrichidae) and its predator Teretriosoma nigrescens Lewis (Coleoptera: Histeridae) in Benin. Bulletin of Entomological Research, 87: 239 – 246, 2012.