@INBOOK {D.:2000, title = {Farmer participatory development of a control strategy for the variegated grasshopper with a bio-pesticide in the northern Mono, Benin In: Farmers and scientists in a changing environment: assessing research in West Africa}, author = {Muller, D. and Gbongboui, C. and De Groote, H. and Langewald, J. and Badou, R. }, editor = {Renard, G. and Krieg, S. and Lawrence, P. and Von Oppen, M. }, year = {2000}, pages = {22--26}, publisher = {Margraf Verlag}, }