International Centre of Insect Physiology and Ecology (ICIPE) Farmer participatory trials in 1997 and 1998 have shown significant yield increases in maize. The aim is now to develop a maize-based cropping system that will reduce yield losses due to both stem borer and Striga and at the same time improve soil fertility due to nitrogen-fixing action of Desmodium. Such a redesigned and diverse system has many of the characteristics of `traditional’ farms in Kenya. ICIPE has trained a network of farmer teachers and now over 3000 farmers have adopted these push-pull technologies.
Source: "Promoting Production and Trading Opportunities for Organic Agricultural Products in East Africa - Capacity Building Study 3: Organic Agriculture and Food Security in East Africa" by Rachel Hine and Jules Pretty, May 2007; Published by For United Nations Conference on Trade and Development (UNCTAD) and United Nations Environment Programme (UNEP) at Centre for Environment and Society at University of Essex")