Dr. Dennis Ondieki Omayio

Dr. Dennis Ondieki Omayio

mayioContact details

Department of Biological Sciences

School of Natural & Applied Sciences (MMUST)

P.O. Box 190-50100

Kakamega, KENYA

Office no. SPD Block B Room 310

Kakamega-Webuye Road

Email: This email address is being protected from spambots. You need JavaScript enabled to view it.


ORCID: https://orcid.org/0000-0002-5793-4168

ResearcherID: AAU-1223-2021

Dr. Dennis Ondieki Omayio

Dr. Dennis Ondieki Omayio holds a doctorate degree in Plant Pathology specializing in integrated management of plant diseases. His areas of academic and research interest are in the fields of crop protection information technology, plant pathology algorithms development, host-plant resistance, plant-pest/pathogen interactions’ optimization towards development of effective management options. His major scholarly contribution include: Development of Enviro-DPEH tool, which measures the following variables namely; quantitative levels of host plant resistance/tolerance in plants against pathogens, virulence levels of pathogens, type of disease progress, environmental health and preparedness levels of ecosystems to sequester carbon dioxide that contributes in climate change. Further, he has developed the concept of relative logarithmic abundance that is significantly contributing in the evaluation of threat levels of invasive species in ecosystems towards their management. He currently serves as the departmental Chairperson of the Postgraduate Studies Committee and the chairman of the committee (ADA) that manages issues of alcohol and drug abuse in Masinde Muliro University of Science & Technology - Kenya.

Some of his key published works include: -

  1. Dennis O.Omayio, Stephen T.Ndombi. Tool for determining levels and classifying; host plant resistance, tolerance to stress, vigour and pathogen virulence in plants. Scientific African
    Volume 16, July 2022, e01218. DOI: https://doi.org/10.1016/j.sciaf.2022.e01218
  2. Robert K. Leitich, Jackson C. Korir, John O. Muoma and Dennis O. Omayio. 2021. "Viral synergism and its role in management of maize lethal necrosis disease." African Journal of Plant Science 15, no. 6 (2021): 151-157. DOI:https://doi.org/10.5897/AJPS2021.2132
  1. Omayio Dennis. 2020. An algorithm for estimating resistance magnitude of plants against disease establishment and pathogen virulence levels. Plant pathology Journal, 19(1):16-21. DOI:http://dx.doi.org/10.3923/ppj.2020.16.21
  1. Omayio Dennis and Mzungu Emmanuel.2019. Modification of Shannon-Wiener diversity index towards quantitative estimation of environmental wellness and biodiversity levels under a non-comparative scenario. Journal of environment and earth science, 9(9):46-57. DOI:http://dx.doi.org/10.7176/JEES/9-9-06
  1. W. Kariuki., S.W. Mwendia., F.N. Muyekho., S.I. Ajanga and D.O. Omayio.2016. Biomass production and forage quality of head-smut disease resistant napier grass accessions in Kenya. African Crop Science Journal, 24: 157-165. DOI:http://dx.doi.org/10.4314/acsj.v24i1.18S
  1. Okoth Patrick., Muoma John., Omayio Dennis., Barasa Mustafa and Angienda Paul. 2018. Molecular footprint of Kenya’s gene bank repositories based on the Cp-Gene signatures. American Journal of Molecular Biology, 8:215-244. DOI: http://dx.doi.org/10.4236/ajmb.2018.84019
  1. Dennis .O. Omayio., David M. Musyimi., Francis N. Muyekho., Samuel I. Ajanga., Charles A.O. Midega, Clabe S. Wekesa., Patrick Okoth and Innocent W. Kariuki .2018. Molecular diversity of a seemingly altitude restricted Ustilago kamerunensis Isolates in Kenya: A pathogen of napier grass. American Journal of Molecular Biology, 8:119-143. DOI:http://dx.doi.org/10.4236/ajmb.2018.82011
  1. Okoth., J. Muoma., M. Emmanuel., W. Clabe., D.O. Omayio and P.O. Angienda .2016. The potential of DNA barcode-based delineation using seven putative candidate loci of the plastid region in inferring molecular diversity of cowpea at sub-species level. American Journal of Molecular Biology, 6:138-158. DOI: http://dx.doi.org/10.4236/ajmb.2016.64014
  1. K. Leitich., D.O. Omayio., B. Mukoye., B.C. Mangeni., D.W. Wosula., W. Arinaitwe., R.M. Otsyula., H.K. Were and M.M. Abang .2016. Pathogenic variability of angular leaf spot disease of common bean in Western Kenya. International Journal of Applied Agricultural Sciences, 2:92-98. DOI: http://dx.doi.org/10.11648/j.ijaas.20160206.13
  1. C. Kawawa., J.F. Obiri., F.N. Muyekho., D.O. Omayio., H. Agevi., A. Mwaura., L. Obiet., D.K. Kimutai and A. W. Sifuna .2016. Allelopathic potential of invasive Psidium guajava L., against selected native tree species in Kakamega tropical forest, Western Kenya. Journal of Pharmacy and Biological Sciences, 11: 80-86.DOI: http://dx.doi.org/10.9790/3008-1105028086
  1. Dennis .O. Omayio., David M. Musyimi., Francis N. Muyekho., Samuel I. Ajanga., Charles A.O. Midega, Zeyaur R. Khan and Innocent W. Kariuki .2018. Introducing a novel natural logarithmic indices and their corresponding percentages table towards quantitative estimation of plant tolerance levels to stressors. International Journal of Biosciences, 12:78-98. DOI: http://dx.doi.org/10.12692/ijb/12.4.78-98

Innovations developed:-

  1. Enviro-DPEH tool; for monitoring of environmental quality and improved plant diseases management.
  2. Concept of Relative Logarithmic Abundance; aiding in the evaluation of the magnitude of environmental threats, based on a certain population of a selected species.
  3. Concept of mISNLI; mean Individual Species Number Logarithmic Index that modified Shannon Weiner Diversity Index and made it more effective in analysis of availed data.

Innovations under development:-

  1. CPIMT-Crop Protection Information Management Tool; towards improved food security
  2. ETL-Tool; for measuring the levels of selected threats to ecosystem stability and sustainability.

View full CV here:

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