Prof. Oyibo Patricia Onyewuchi

Prof. Oyibo Patricia Onyewuchi


BSc., MSc., PhD
Email: N/A


Onyewuchi, Oyibo Patricia. started her kindagarten/primary education at Our Lady of Lourdes, Ontario, Canada. She finished her primary education at College of Education and Demonstration school,(popularly known as Shell Camp) Owerri, Imo state. From there she proceeded to Federal Government Girls’ College, Bwari, Abuja, where she completed her secondary school education. She gained admission into Abia State University where she bagged a BSc. in Botany. She went ahead to University of Ibadan where she obtained an MSc in Crop protection and Environmental Biology, M.Phil in Plant Ecology and a PhD in Plant Pathology. While she was doing her PhD programme, she got a lecturing job as an Assistant Lecturer in the Department of Crop Science & Technology at Federal University of Technology, Owerri, Imo state in 2001. In 2005 she was awarded the Netherlands Fellowship programme where she did an International Training Programme on Integrated Pest Management (IPM) for Sustainable 

Agriculture and Food Safety at Wageningen, Netherlands (May 23-July 1,2005) which includes the following  courses;

 (i) Transition to Sustainable Agriculture (May 23–June3,2005)

 (ii) IPM Policy and Institutional Innovations (June 6- 17, 2005)

 (iii)Pesticides and Food Safety in IPM & GAP (Good Agricultural Practices), (June 20-July1,2005)

Below are the following courses she did after she completed her 6 weeks course at Netherlands:

1.       Short course in Advance Organic Agriculture, 1st UNAAB international Summer School programme on Organic Agriculture held at the University of Agriculture, Abeokuta, Nigeria, September 13 – 24, 2010.


2.  Electronic library resources training workshop on Research4life and TEEAL programmes,  November 15 – 17, 2010 at the University of Port Harcourt, Nigeria.


2.       Refresher course on Development of seed systems for root and tuber crops to enhance food security held in Kumasi, Ghana, 15-26 October 2012.

She has served as the Head of Department of Crop Science & Technology; Exam Officer, Course Coordinator, Class Academic Adviser, Associate Dean, Acting Dean and currently the Acting Dean, She has published more than 50 journal papers both in international and local journals.

She is from Ngor-Okpala and is happily married to Mr Edward Onyewuchi.


Academic Qualification

BSc, MSc, M.Phil, PhD


  • Netherlands Fellowship program (NFP)


  • Agricultural Society Nigeria (ASN)


  • Nigerian Society of Plant Protection (NSPP)


  • American Plant Pathology Society (APS)


  • Nigerian Horticultural Society (NIHORTS)


  • Crop Science Society of Nigeria.

  • Nigerian Organic Agricultural Society.

Courses Assigned to Teach


Research Interest

The control of plant diseases with plant extracts.


1. S.A. Dialoke, N.O. Kabuo, F.O. Ojiako, C.T. Tom, M.O. Ofor, O.P. Obilo and S.A. Isong (2014). Field screening of Chickenpea (Cicer arientinum) genotypes against insect pests in the rainforest zone of Owerri, Imo state, Nigeria. SAT ejournal/ (An open Access Journal published by ICRISAT) Vol (1)Issue 1, (1-7).

2. Nnebue, O.M., Ogoke, I.J., Obilo, O.P., Agu, C.M., Ihejirika, G.O.and Ojiako, F.O. (2014). Estimation of planting dates for roselle (Hibiscus sabdariffa L.) in the humid tropical environment of Owerri, Southeastern Nigeria. Agrosearch, Vol. 14(2): 168-178.

3. Nnebue, O.M., Ogoke, I.J. and Obilo, O.P. (2015). Leaf area determination in roselle (Hibiscus sabdariffa L.) using linear measurements. International Journal of Science, Environment and Technology, Vol. 4: 407-413.

4. Ofor, M.O., Kelechukwu, E.C., Ihejirika, G.O.,Nnebue, O.M and Onyewuchi, O.P.(2015). Evaluation of potash bi-carbonate salts and neem-leaf extracts for the control of onions (Allium cepa L.) rots development. International Journal of Agricultural and Rural Devlopment (IJARD) Vol. 18(1) 2049-2051.

5. Ihejirika, G.O, Nwufo,M.I., Ibeawuchi, I.I., Obilo, O.P., Ofor, M.O., Ogbedeh, K.O., Okoli, N.A., Mbuka, C.O., Agu, G.N., Ojiako, F.O., Akalazu, J.N., Emenike, H.I.(2015). Effect of processing and packaging materials on the storability and microorganisms associated with Garcinia kola (bitter kola). Agriculture, Forestry & Fisheries. 4(3-1):51-58 ISSN:2328-563X(print): ISSN:2328-5648(online).

6. Orji, O. J., Ibeawuchi,I. I. and Obilo, O. P. (2015). Effect of Poultry Manure on Incidence and Severity of Foliar Diseases and Weed of Telfairia occidentalis (Ugu) Intercropped with Cassava and Maize. Journal of Biology, Agriculture and Healthcare 5: 205-210. 2224-3208 (Paper); 2225-093X (Online).


7.   Orji, O. J., Ibeawuchi,I. I. and Obilo, O. P., Obiefuna, J.C., Peter-Onoh, C.A., Harriman, J.C., Nze, E.O and Abana, P.C. (2015).  Foliar mineral content of fluted pumpkin (Telfairia occidentalis F. Hook) grown sole or intercropped with maize, cassava or their mixture. IJARD, Vol. 18 (2): 2221- 2227.

8.   Orji, O. J., Ibeawuchi,I. I. and Obilo, O. P. Obiefuna, J.C., Peter-Onoh, C.A., Nze, E.O, Ogu, C.E. and Ahuchaogu, C.E. (2015). Effect of poultry manure on foliar yield of Telfairia occidentalis F.Hook grown sole and intercropped with maize, cassava and their manure.  IJARD, Vol. 18 (2): 2189- 2194.


9.  Onyewuchi, O.P., Ihejirika, G.O., Ofor, M.O. and Okafor, C.C. (2016). Effect of some plant extract on damping-off disease of garden egg (Solanum melongena) in a humid tropical environment. International Journal of Agricultural and Rural Devlopment (IJARD). Vol. 19(1): 2433- 2437.


10.  Onyewuchi, O.P., Ihejirika, G.O., Alagba, A. and Chinyere, I. (2016). Effects of some plant extracts on the curvularia leaf of maize. International Journal of Agricultural and Rural Devlopment (IJARD). Vol 19(1): 2438-2443.


11. Ogbedeh, K.O., Epidi, T.T., Ihejirika, G.O., Obilo, O.P., Ezeibekwe, I.O., Ogwudire, V.E. and, S.A.,(2016). Effect of tillage and organic manure sources on termite infestation on cassava (Manihot esculenta Crantz) stems in a cassava field in Owerri, southeastern Nigeria. Futo Journal Series  (FUTOJNLS). Vol. 2, Issue-1, 17-31. e-ISSN: 2476-8456 p-ISSN: 2467-8325.


12. Ihejirika, G.O, Onyewuchi, O.P., Ofor, M.O, Ogbedeh, K.O, Ojiako, F.O and Elesi, C.U.(2017). Evaluation of intercropping watermelon and Amaranthus on some field disease and yield of groundnut in Owerri, Imo state. Journal of Organic Agricultural Environment, Vol. 5, (1). Pp.56-64.


13. Orji, J.O., Nwufo, M.I., Onyewuchi, O.P., Duruigbo, C.I. (2019) Effect of planting months, spacing and mulching on soil temperature and emergence of cucumber (Cucumis sativus L.). International Journal of Agriculture and Earth Science, Vol 5. No.2. 28-35. E-ISSN 2489-0081 P-ISSN 2695-1894.


14. Mba, P.C., Ihejirika, G.O., Okere, S.E., Peter-Onoh, C.A., Onyewuchi, O.P. and Nwufo, M.I. (2021). Assessment of selected plant-leaf extracts in the control of rot diseases of  yam varieties in storage in Owerri. International Journal of Agric, & Rural Development, Vol 24 (1): 5528 – 5528.



Research/Publication Links

ORCID: 0000000243787793

Research Gate Profile URL: Patobilo

Google Scholar Page: Onyewuchi OYIBO PATRICIA