Joined HAK in 2006, HAK treasurer since 2011
2015: International Training on Production of Trichoderma. AVRDC, TheWorld Vegetable Center, Arusha, Tanzania.
2014: Training Workshop/Capacity building of KALRO staff on demand driven research and training (DDRT) in Horticulture. NUFFIC/KALRO/JKUAT/FPEAK/PTC.
2014: Training on fungal biopesticides, Beauveria bassiana and Metarhizium anisoplae, Agricare PVT, Bharatpur, Nepal.
2013: Training on Identification and management of invasive species in Tropical Africa, Dakar, Senegal
2008-2009: Stellenbosch University, South Africa, Molecular characterization of Phytophthora cinnamomi causing Macadamia root rots in Kenya
2005-2011: PhD Horticulture, Jomo Kenyatta University of Agriculture and Technology, Kenya
1997-1998: Danish Institute of Seed Pathology for Developed Countries, Copenhagen, Denmark, Certificate Seed Pathology
1989-1990: Msc. Plant Pathology, University of London
1979-1983: Bsc. Botany and Zoology, University of Nairobi
1. Worked for the Kenya Agricultural and Livestock Research Organisation (KALRO) as the Centre Director, Horticulture Research Centre, Thika from May 2015
2. Worked as the Head, Crop Health Program at the Kenya Agricultural Research Institute (KARI)-Thika from 2010-2015
3. Worked as the Deputy Officer in charge, KARI-Macadamia from 1999-2005
4. Worked as the Deputy Centre Director, KARI-Mwea from 1993-1996
5. Worked as a plant pathologist at KARI-Mwea from 1983-1996
Integrated pest management in vegetables, fruits, ornamentals and macadamia nuts; plant host resistance; pathogen diagnostics;pathogen-vector interphase; epidemiology; seed health; use of biotechnology in plant pest management. Specially interested in capacity building of farmers and extension field workers in pest diagnostics, participatory research and dissemination of gender appropriate IPM technologies for improved livelihoods especially for women, children in rural Kenya.
1. Mbaka, J.N., Losenge, T., Spies, C., Waiganjo, M.M and Wamocho, L.S. (2013). Molecular identification of fungi associated with root rots of macadamia in Kenya (Accepted for publication in EAAFJ in June 2013).
2. Mbaka, J.N., Losenge, T., Waiganjo, M.M and Wamocho, L.S. (2010). Phenotypic variation in three Phytophthora cinnamomi populations from macadamia growing areas in Kenya. Journal of Animal and Plant Sciences 8(1): 900-911.
3. Mbaka, J.N., Losenge, T., Waiganjo, M.M and Wamocho, L.S. (2010). Phenotypic variation in three Phytophthora cinnamomi populations from macadamia growing areas in Kenya. Journal of Animal and Plant Sciences 8(1): 900-911.
4. Wangungu, C., Maina, M. and Mbaka, J. (2011). Proposed assessment scale for dieback disease severity on passion fruit. Journal of Animal and Plant Sciences, Vol.12,Issue2:1583-1589.Http://www.biosciences.elewa.org/JAPS ; ISSN 2071 – 7024
5. Njeri Njau, Maina Mwangi, Ruth Gathu, Jesca Mbaka and Reuben Muasya (2011). Banana weevil (Cosmopolites sordidus) reduces availability of corms for seedling production through macropropagation technology. Journal of Animal & Plant Sciences,Vol. 12, Issue 1: 1537-1542
6. Carter, B.A., Reeder, R., Mgenzi, S.R., Kinyua, Z.M., Mbaka, J.N., Doyle, K., Nakato, V., Mwangi, M., Beed, F., Aritua, V., Lewis Ivey, M.L., Miller S.A, and Smith, J.J. (2010). Identification of Xanthomonas vasicola (formerly X. campestris pv. musacearum), causative organism of banana xanthomonas wilt, in Tanzania, Kenya and Burundi. Plant Pathology 59: 403