Dr. Ruth Gathu

Position: Senior Lecturer & School Examination Cordinator
Department:
Agricultural Science and Technology
Area of Specialization:
Agriculture Entomology
Contact Address: P.O. Box 43844 Nairobi 00100


View full CV pdf

 Research Interests:

 Use of natural enemy’s in the management of arthropod pests. With a bias on Integrated Pest Management (IPM) strategies of the horticultural crops.

 Research in areas related in conservation of the natural enemies in order to reduce on pesticides.  Sustain  biodiversity.

 Recent Publications 

  • S. T. O. Othim, K. M. Agbodzavu, R. Kahuthia-Gathu, K. S. Akutse, S. Muchemi, S. Ekesi, and K. K. M. Fiaboe 2017 Performance of Apanteles hemara (Hymenoptera:
    Braconidae) on two Amaranth Leaf-webbers: Spoladea recurvalis and Udea ferrugalis (Lepidoptera: Crambidae) Environmental Entomology, XX(X), 2017, 1–8 Online

  • Ofgaa Djirata, Emana Getu & Ruth Kahuthia-Gathu. 2017 Association of a native predator Chilocorus sp. (Coleoptera: Coccinelidae) with a new exotic mango pest, Aulacaspis tubercularis Newstead (Hemiptera: Diaspididae) in Ethiopia. Israel Journal of Entomology, Vol. 47, pp. 1–8

  • Kahuthia-Gathu R. , Maina Mwangi and Fiaboe M.O. 2017 Assessing and Enhancing Impact of Cotesia vestalis in the Management of Diamondback Moth Plutella xylostella on Kales in Semi-Arid Areas of Kenya. Journal of Environmental and Agricultural Sciences. Vol 11:1-13 ISSN:2313-8629

  • Kahuthia-Gathu Ruth, Brigitte Nyambo and Sevgan Subramanian 2017 Impact of introduced parasitoid Cotesia vestalis (Haliday) on Plutella xylostella and its parasitoid guild on kale in semi-arid areas in Kenya. International Journal of Tropical Insect Science, 1-13. doi:10.1017/S1742758417000091 ISSN: 1742-7584

  • Muui Nancy Nyaruai, Robert Kinyua, and Ruth Gathu 2016 Factors affecting management of safety and health in the building construction industry in Nakuru County, Kenya.
    International Journal of Innovation and Applied Studies Vol. 18 No. 1, 83-89 ISSN 2028-9324

  • Ofgaa Djirata, Emana Getu and Kahuthia-Gathu R. 2016 Trend in Mango Production and Potential Threat from Emerging White Mango Scale, Aulacaspis tubercularis (Homoptera: Diaspididae) in Central and Eastern Kenya Journal of Natural Sciences Research Vol.6, No.7, 87-94 ISSN 2224-3186

  • Carolyne W. Wangungu, Maina Mwangi, Ruth Gathu, and Reuben Muasya. 2014 Good Orchard Maintenance and Agronomic Practices as Working Components in Management of Dieback Disease on Passion Fruit (Passiflora sp.) in Kenya. Annual Research & Review in Biology. 4(9): 1397-1405.

  • N. Njau, M. Mwangi, R. Kahuthia-Gathu, R. Muasya and J.N. Mbaka 2014 Macropropagation technique for producing cost-effective healthy banana seedlings in Eastern and central Kenya CTA and FARA, Agricultural Innovations for Sustainable Development: Contributions from the 3rd Africa-Wide Women and Young Professionals in Science Competitions. Vol. 4 Issue 3.

  • S. K. Ndungu, I. Macharia, R. Kahuthia-Gathu and R. G. Wahome 2013 Impact of organic vegetable production system in Kiambu and Kajiado Counties of Kenya
    Journal of Environmental science and Engineering. 2:256-266.

  • Luchidio M.T., Kahuthia-Gathu R. and Gatebe E.1 2013 Impact of training boda boda operators and safety status in Kakamega County, Kenya. International Journal of Advance Research, IJOAR .org Volume 1, Issue 9, September 2013, ISSN 2320-9151

  • Kahuthia-Gathu R., Okwarah P., Gakunju R., and Thungu J. 2013 Trends and emerging drugs in Kenya: A case study in Mombasa and Nairobi County
    Journal of Applied Biosciences 67:5308 – 5325 ISSN 1997–5902

  • Kahuthia-Gathu R.. 2013 Seasonal incidence of Plutella xylostella (Lepidoptera: Plutellidae) and its associated natural enemies in major crucifer growing areas of Kenya;
    Journal of Plant Breeding and Crop Science Vol. 5(5), pp. 73-79 ISSN 2006-9758

  • Kahuthia-Gathu, R.; Jesca, Mbaka; Reuben, Muasya; Mwangi, M.; Njeri, Njau 2011 Banana weevil (Cosmopolites sordidus) reduces availability of corms for seedling production through macropropagation technology Journal of Animal & Plant Sciences, 2011. Vol. 12. 1537-1542 ISSN 2071-7024

  • N Njau, M Mwangl, R Kahuthia-Gathu, N Kori, R Muasya Mineral Deficiency in Production of Banana Seedlings
    International E-Conference on Agricultural Biosciences

  • NACADA Authority, Gachutha, C., Baya J., Gakunju, R., Gathu, R., Gachika, W., Njoka, C., Njani, E., Murimi, G. 2011 Peer educators training manual on alcohol and drug abuse; response to peer needs. Pg 95. Manual

  • Kahuthia-Gathu R. 2011 Seasonal incidence of Plutella xylostella (Lepidoptera: Plutellidae) and its associated natural enemies in major crucifer growing areas of Kenya; Journal of Applied Biosciences 46: 3103– 3112 ISSN: 1997-5902

  • Carolyne W. Wangungu, Ruth Kahuthia-Gathu and Maina Mwangi 2010 Studies on the die back disease of passion fruit in major production areas in Kenya
    Proceedings of the 3rd International e-Conference on Agricultural BioSciences Page: 68 – 69.

  • Njeri Njau, Maina Mwangi and Ruth Kahuthia-Gathu. 2010 Evaluating health of macropropagated banana seedlings. Proceedings of the 3rd International e-Conference on Agricultural Bio-Sciences. Page: 64 – 65. 

  • Carolyne W. Wangungu, Ruth Kahuthia-Gathu and Maina M 2010 Studies on the die back disease of passion fruit in major production areas in Kenya. Proceedings of the 3rd International e-Conference on Agricultural Bio-Sciences. Page: 68 – 69; Abstract ID: IeCAB010-330b. www.m.elewa.org/IeCAB-bstracts.../IeCAB010-330b%20carol.pdf

  • Wangungu, C.W., Maina Mwangi, Mbaka, J., Kori, N. and Gathu, R. 2010 Biotic constraints to passion fruit production in Central and Eastern Kenya.
    Second RUFORUM biennial conference, Sept. 20 – 24, 2010, Entebbe, Uganda.

  • Wangungu, C., Maina, M., Gathu, R.K., Mbaka, J. and Kori J N.. 2010 Passion fruit production in Kenya: Opportunities and Constraints. pp 58-64. Contribution of Agricultural Sciences towards achieving the Millennium Development Goals e-Book - ISBN: 978-9966-7415-2-6).

  • Njau N. Maina M., Gathu R. K., Mbaka J. and Muasya R. 2010 Propagation of healthy banana seedlings in relation to pest and disease management. Pg. 75 -86. Contribution of Agricultural Sciences towards achieving the Millennium Development Goals e-Book - ISBN: 978-9966-7415-2-6).

  • Wangungu C.W., Maina. M, Gathu R. K., Mbaka, J., and Kori J. N. 2010 Passion fruit production in Kenya: Opportunities and constraints. Contributions of Agricultural Sciences towards achieving the Millenium Development Goals pg. 55- 63.

  • Kahuthia-gathu R., Löhr, B., Poehling H-M. & Mbugua P.K.  2009 Diversity, distribution and role of wild crucifers in major cabbage and kale growing areas of Kenya. Bulletin of Entomological Research. 99 (3), 287-297.

  • Gichini, G., Löhr, B., Rossbach, A., Nyambo B., Gathu, R. 2008 Can low release numbers of parasitoids lead to establishment? Case of Diadegma semiclausum in East Africa. Crop Protection. 27, 906-914.

  • Kahuthia-gathu R., Löhr, B. and Poehling H-M 2008 Development and reproductive potential of diamondback moth, Plutella xylostella L. (Lepidoptera: Plutellidae), on cultivated and wild crucifer species in Kenya. International Journal of Tropical Insect Science. 28,19-29.

  • Kahuthia-gathu R., Löhr, B., Poehling H-M. 2008 Effect of common wild crucifer species of Kenya on fitness of two exotic diamondback moth parasitoids, Cotesia plutellae and Diadegma semiclausum. Crop Protection. 27 (12), 1477-1484.

  • Löhr, B., Gathu, R., Kariuki, C., Obiero, J. and Gichini, G. 2007 Impact of an exotic parasitoid on Plutella xylostella (Lepidoptera: Plutellidae) population dynamics, damage and indigenous natural enemies in Kenya. Bulletin of Entomological Research. 97, 337-350.

  • Kahuthia-Gathu R. 2007 Importance of wild crucifers for diamondback moth, Plutella xylostella L. (Lepidoptera: Plutellidae) and its parasitoids in Kenya. PhD Thesis.

  • Löhr, B. and Gathu, R. 2002 Evidence of adaptation of Diamondback moth, Plutella xylostella (L.), to pea Pisum sativum L.
    Insect Science and its Application. 22, 161-173.

  • Kahuthia-Gathu R. 2000 Evaluation of various neem formulations in the control of selected pests of French beans (Phaseolus vulgaris)..
    M.Sc. Thesis

Conference Presentations 

  • Kahuthia-Gathu R., Nyambo B, Subramanian S. Impact of introduced parasitoid Cotesia vestalis on Plutella xylostella and its parasitoid guild on kale in semi-arid areas in Kenya The International Conference on Building a New Generation Of Agricultural Scientists at Kenyatta University, Kenya. 1st – 5th December 2014

  • Muriuki L.M., G.M. Kariuki, Z.M. Kinyua, R. Gathu, D.L. Coyne Evaluation of Tomato Cultivars for Resistance to Bacterial Wilt-root Knot Nematode Disease Complex in Kenya The International Conference on Building a New Generation Of Agricultural Scientists at Kenyatta University, Kenya. 1st – 5th December 2014

  • Ndalo V. Kahuthia-Gathu R., Maina M. Population dynamics and indigenous parasitoid guild of tomato leaf miner (Tuta absoluta) in Loitokitok, Kajiado County Kenya The International Conference on Building a New Generation Of Agricultural Scientists at Kenyatta University, Kenya. 1st – 5th December 2014

  • Namikoye E. S., M. Kasina, M.W. Githendu, G. kariuki, R.K. Gathu, Z.M. Kinyua Population Dynamics and Management of Frankliniella williamsi (Thysanoptera: Thripidae) vector of maize chlorotic mottle virus. The International Conference on Building a New Generation Of Agricultural Scientists at Kenyatta University, Kenya. 1st – 5th December 2014

  • Dr. Ruth Kahuthia-Gathu Impact of introduced parasitoid Cotesia plutellae on Plutella xylostella and its parasitoid guild on kale in semi-arid areas in Kenya 11th African Crop science society conference in Entebbe, Uganda 14-17 October 2013

  • S.K. Ndungu, I Macharia, R. Kahuthis-Gathu, R. Githaiga Wahome Impact of organic vegetable production system in Kiambu and Kajiado Counties of Kenya 11th African Crop science society conference in Entebbe, Uganda 14-17 October 2013

  • Luchidio M. T. Impact of training boda boda operators and safety status in Kakamega County, Kenya Mount Kenya University 1st International Research & Innovation Conference 28th -30th Aug 2013

  • Ruth Kahuthia-Gathu Spread and establishment of exotic parasitoid Cotesia plutellae on diamondback moth and parasitoid guild on kale in Semi-arid areas of Kenya Mount Kenya University 1st International Research & Innovation Conference 28th -30th Aug 2013

  • Ruth Kahuthia-Gathu Trends and patterns of Emerging drugs in Kenya. A case study in Nairobi and Mombasa County 2nd National Conference on Alcohol and Drug Abuse. Nairobi, Kenya 10th -13th June 2013:

  • Carol Wangari Wangungu Studies on complexity of the dieback disease of passion fruit in Kenya. http://www.m.elewa.org/IeCAB-Abstracts-2011/IeCAB011-413.pdf
    4th Int. e-Conference on Agricultural Biosciences. Held online Aug 2011

  • Njau Njau Potential challenges facing Macropropagation technique in banana. http://www.m.elewa.org/IeCAB-Abstracts-2011/IeCAB011-416.pdf 4th Int. e-Conference on Agricultural Biosciences. Held online August 2011

  • Dr. Ruth Kahuthia-Gathu (Poster presentation) Insect pests and Diseases of Sechium edule in Kenya Agro 2011 Biennial conference “Optimisation of agricultural value chains for sustainable development. UON Kenya 26th -28th Sept 2011

  • Njeri Njau Assessing Macropropagation technique for production of healthy banana seedlings. Proceedings ACSS 2011. Pp 248 African Crop Science Society Conference, Maputo, Mozambique 10th-13th October 2011.

  • Caroline Wangari Wangungu, Practices for reducing dieback disease incidence on passion fruit in Kenya. Proceedings ACSS 2011 Pp 264 African Crop Science Society Conference, Maputo. Mozambique 10th-13th October 2011.

  • Njau Njeri Biotic constraints to banana production in Eastern and Central Provinces of Kenya.Pp 267 – 269. http://mak.ac.ug/documents/RUFORUM/NjeriBiotic.pdf
    Second RUFORUM biennial conference, Entebbe, Uganda. 20-24th Sept. 2010

  • Njau Njeri Assessing effectiveness of macropropagation technology to produce healthy seedlings of banana varieties with high market demand in Eastern and Central provinces, Kenya. Pp 531 – 533. http://mak.ac.ug/documents/RUFORUM/NjeriAssessing.pdf Second RUFORUM biennial conference, Entebbe, Uganda. 20-24th Sept. 2010

  • Wangungu, Caroline W. Biotic constraints to passion fruit production in Central and Eastern Kenya. Conference proceedings Pp 239 – 241.
    www.mak.ac.ug/documents/RUFORUM/WangunguBiotic.pdf Second RUFORUM biennial conference, Entebbe, Uganda. 20-24th Sept. 2010

  • Wangungu, Caroline W. Studies on the etiology, epidemiology and management of dieback disease of passion fruit in Kenya. Pp 303 – 305.
    http://mak.ac.ug/documents/RUFORUM/WangungaStudies.pdf Second RUFORUM biennial conference, Entebbe, Uganda. 20-24th Sept. 2010

  • Dr. Ruth Kahuthia-Gathu Diversity, distribution and role of wild crucifers in major cabbage and kale growing areas of Kenya Beijing, China 24-28th Oct 2006

  • Kahuthia-Gathu Ruth Diversity and role of wild crucifers in major crucifer growing areas of Kenya. 2nd National Biological Postgraduate Scientific Conference, Kenyatta University, Kenya 8-10th Aug 2006

  • Lohr Benhard Biological impact of the exotic diamondback moth parasitoid Diadegma semiclausum (Hellen) in Kenya. International Congress of Entomology, Brisbane, Australia
    16-21st Aug 2004

  • Lohr Benhard Bio-control based IPM for the diamondback moth in Eastern and Southern Africa on IPM development and implementation in Africa
    Kampala Uganda. Sept 2003

  • Ruth Kahuthia-Gathu Evaluation of neem formulations for the control of selected pests of French beans (Phaseolus vulgaris),
    Kenyatta University, Kenya 9-12th Oct 2000:

Last Updated on Tuesday, 17 October 2017 09:43

Joomla templates by Joomlashine