Veröffentlichungen - Ibrahim Ndegwa Macharia

Macharia, I., Mithöfer, D. and Waibel, H., 2009. Potential environmental impacts of pesticides use in the vegetable sub-sector in Kenya. African Journal of Horticultural Sciences 2, 138-151.

Macharia, I., Mithoefer, D., Löhr, B., 2006. Update of the ex-ante impact assessment of the biological control of Plutella xylostella (Diamondback moth) in Kenya. In: T. Shelton (ed.) Proceedings of Organic agriculture in development 28 the 5th International Workshop on Diamondback Moth and Other Crucifer Insect Pests, Oct. 24- 27, Beijing, China.

Macharia, I., Löhr, B., De Groote, H., 2005. Assessing the potential impact of biological control of Plutella xylostella (diamondback moth) in cabbage production in Kenya. Crop Protection, Vol 24 pp 981-989.

Macharia, I., Varela, A.M., Löhr, B., 2004. Impact assessment of training French beans smallholders on Integrated Pest Management (IPM) and good agricultural practices (GAP) through farmer field school. Proceedings of the Horticulture workshop on Sustainable Horticultural Production in the Tropics. 2004. Moi University, Kenya. www.gartenbau.uni-hannover.de/gem/SVePiT/index_svepit

Macharia I., Akivaga, F., Ndenga, E., 2004. Awareness campaign for export horticulture producers and out grower groups to comply with EUREPGAP protocols: Mid- term evaluation of the Radio awareness programme. A report to BMSDP-DFID crop protection programme. Contract Number H-SP-03.

Löhr B., Macharia I., deGroote H., 2004. Ex-ante impact assessment of the introduction of the diamondback moth parasitoid, Diadegma semiclausum, in Kenya. XV International Plant Protection Congress, Beijing, China, May 2004.

Macharia, I., Nyambo, B., 2003. Impact of integrated crop management training on Maragua ridge mango production: Baseline data on knowledge, practice, marketing, and production economics. A report to Biovision –ICIPE- IPM Project on Mango production: ICIPE, Kenya.

Macharia, I., 2002. Socio- economic base-line information of smallholder French beans producers in Kenya. A report to USAID–ICIPE IPM Project on French beans and Okra, Nairobi: ICIPE, Kenya.

Macharia, I., Eckert, M., 2001. Comparative study of tissue culture and conventional sucker propagation methods of banana (musa spp.) at farm levels in Kenya. Proceedings of the Horticulture Seminar on Sustainable Horticultural Production in the Tropics. 3rd – 6th October 2001. Department of Horticulture, Jomo Kenyatta University of Agriculture and technology, Kenya.http://www.gartenbau. uni-hannover.de/gem/SVePiT/PROCEEDINGS2001.pdf.

Macharia, I., Britta, M., 1999. Importance of indigenous tree in North Horr (Marsabit District). A report to GTZ- Integration of Tree Crops into Farming System Project, Nairobi: Kenya.