Selected relevant publications by J.M. Ritchie

Ritchie, J.M. 2010. Land Release and the Evaluation of Mineclearance.  The HALO Trust. http://www.halotrust.org/UserFiles/851/Land_Release_and_the_Evaluation_of_Mineclearance.pdf.

Orr, A. & Ritchie, J.M.  2004.  Learning from failure: smallholders farming systems and IPM in Malawi. Agricultural Systems 79 (2004): 31-54.

Abeyasekera, S., Ritchie, J.M. and Lawson-McDowall, J.  2002. Combining ranks and scores to determine famers’ preferences for bean varieties in southern Malawi.  Experimental Agriculture (2002),38:97-109.

Lawson-McDowall, J., Abeyasekera, S., Mwale, B., Ritchie, J.M., Orr, A. and Chanza, C. 2001.  IPM for Smallholders: a Researcher's Case Book from Malawi. Chatham, UK: Natural Resources Institute.  vi + 88 pp.

Ritchie, J.M. (ed.).  2000.  Integrated Crop Management Research in Malawi: Developing Technologies with Farmers.  Proceedings of the Final Project Workshop of the Farming Systems Integrated Pest Management Project, Club Makokola, Mangochi, Malawi, 29 November-3 December 1999.  Chatham, UK: Natural Resources Institute. vi + 312 pp.

Abeyasekera, S., Ritchie, J.M. and Chanika, C.S.M.,  2000.  Experimental trials within the FSIPM Project and related statistical issues. Pp 28-40. In: Integrated Crop Management Research in Malawi: Developing Technologies with Farmers.  Proceedings of the Final Project Workshop of the Farming Systems Integrated Pest Management Project, Club Makokola, Mangochi, Malawi, 29 November-3 December 1999.  Chatham, UK: Natural Resources Institute.

Mwale, B., Ritchie, J.M., Chanika, C.S.M. and Barahona, C. 2000.  Cultural management of sweet potato weevil (Cylas puncticollis).  Pp 48-59.  In: Integrated Crop Management Research in Malawi: Developing Technologies with Farmers.  Proceedings of the Final Project Workshop of the Farming Systems Integrated Pest Management Project, Club Makokola, Mangochi, Malawi, 29 November-3 December 1999.  Chatham, UK: Natural Resources Institute.

Ritchie, J.M., Abeyasekera, S.  Mzilahowa, T.D., Nyirends, G.K.C., and Mwale, B. 2000. Costs and benefits of seed dressing as a pest management strategy for whitegrubs in Blantyre/Shire Highlands. Pp 60-76.  In: Integrated Crop Management Research in Malawi: Developing Technologies with Farmers.  Proceedings of the Final Project Workshop of the Farming Systems Integrated Pest Management Project, Club Makokola, Mangochi, Malawi, 29 November-3 December 1999.  Chatham, UK: Natural Resources Institute.

Ritchie, J.M., Abeyasekera, S., Chanika, C.S.M., Ross, S.J., Mkandawire, C.B.K., Maulana, T.H., Shaba, E.R. and Milanzi, T.T.K.  2000.  On-farm trials of a farmer-developed cultural pest management strategy for termites in Blantyre/Shire Highlands.  Pp 77-89.  In: Integrated Crop Management Research in Malawi: Developing Technologies with Farmers.  Proceedings of the Final Project Workshop of the Farming Systems Integrated Pest Management Project, Club Makokola, Mangochi, Malawi, 29 November-3 December 1999.  Chatham, UK: Natural Resources Institute.

Ritchie, J.M., Orr, A., Lawson-McDowall, J., Mwale, B., Chanika, C.S.M. and Saiti, D.  2000.  The FSIPM Project and the smallholder farming system in Blantyre/Shire Highlands.  Pp 13-20. In: Integrated Crop Management Research in Malawi: Developing Technologies with Farmers.  Proceedings of the Final Project Workshop of the Farming Systems Integrated Pest Management Project, Club Makokola, Mangochi, Malawi, 29 November-3 December 1999.  Chatham, UK: Natural Resources Institute.

Lawson-McDowall, J., Kapulula, P., Ritchie, J.M., and Abeyasekera, S.  2000.  Learning with farmers: participation and evaluation in the development of IPM technologies.  Pp 119-128. In: Integrated Crop Management Research in Malawi: Developing Technologies with Farmers.  Proceedings of the Final Project Workshop of the Farming Systems Integrated Pest Management Project, Club Makokola, Mangochi, Malawi, 29 November-3 December 1999.  Chatham, UK: Natural Resources Institute.

Ritchie, J.M., Chanika, C.S.M., Lawson McDowall, J., Orr, A. and Mwale, B.  2000.  Disseminating research results to researchers, extensionists and farmers: what have we got and how should we package it?  Pp 145-149. In: Integrated Crop Management Research in Malawi: Developing Technologies with Farmers.  Proceedings of the Final Project Workshop of the Farming Systems Integrated Pest Management Project, Club Makokola, Mangochi, Malawi, 29 November-3 December 1999.  Chatham, UK: Natural Resources Institute.

Ritchie, J.M., Abeyasekera, S., Chanika, C.S.M., Ross, S.J., Mkandawire, C.B.K., Maulana, T.H., Shaba, E.R. and Milanzi, T.T.K.  2000.  On-farm trials of bean varieties for yield and pest resistance.  Pp 164-179. In: Integrated Crop Management Research in Malawi: Developing Technologies with Farmers.  Proceedings of the Final Project Workshop of the Farming Systems Integrated Pest Management Project, Club Makokola, Mangochi, Malawi, 29 November-3 December 1999.  Chatham, UK: Natural Resources Institute.

Chanika, C.S.M., Abeyasekera, S., Ritchie, J.M., Riches, C.R., Mkandawire, C.B.K., Mputeni, H., Makina, D., and Daudi, A.T.  2000.  On-farm trials of technologies for the management of  Striga asiatica in Blantyre/Shire Highlands. Pp 216-225.  In: Integrated Crop Management Research in Malawi: Developing Technologies with Farmers.  Proceedings of the Final Project Workshop of the Farming Systems Integrated Pest Management Project, Club Makokola, Mangochi, Malawi, 29 November-3 December 1999.  Chatham, UK: Natural Resources Institute.

Chanika, C.S.M., Abeyasekera, S., Ritchie, J.M., Riches, C.R., Mkandawire, C.B.K., Mputeni, H., Makina, D., and Daudi, A.T.  2000.  Initial results from small-scale use of Tephrosia and Crotalaria in intercropping experiments in Blantyre/Shire Highlands.  Pp 256-262.  In: Integrated Crop Management Research in Malawi: Developing Technologies with Farmers.  Proceedings of the Final Project Workshop of the Farming Systems Integrated Pest Management Project, Club Makokola, Mangochi, Malawi, 29 November-3 December 1999.  Chatham, UK: Natural Resources Institute.

Ritchie, J.M.  2000.  Some opportunities for demand-driven research in Blantyre/Shire Highlands.  Pp 292-295.  In: Integrated Crop Management Research in Malawi: Developing Technologies with Farmers.  Proceedings of the Final Project Workshop of the Farming Systems Integrated Pest Management Project, Club Makokola, Mangochi, Malawi, 29 November-3 December 1999.  Chatham, UK: Natural Resources Institute.

Ritchie, J.M., Polaszek, A., Abeyasekera, S., Minja, E.M.and Mviha, P.  2000.   Insect pest incidence in seed pods of pigeonpea genotypes in on-farm trials in Southern Malawi.  International Chickpea and Pigeonpea Newsletter 7: 64-66.

Ritchie, J.M., Abeyasekera, S., and Chanika, C.S.M.  2000.   Performance of ICRISAT Pigeonpea Varieties on Smallholder Farms in Southern Malawi.  International Chickpea and Pigeonpea Newsletter  7: 50-52.

Orr, A., Mwale, B., Ritchie, J.M., Chanika, C.S.M., and Magor, N. 1998.  IPM for smallholder farming systems in Southern Malawi.  Proceedings of the Association for Farming Systems Research-Extension 15th International Symposium.  Volume 1.  Pp 248-257. 

Disney, R.H.L., & Ritchie, J.M. 1997.  A new genus of Phoridae (Dipt.) that parasitizes an afrotropical millipede (Diplopoda, Odontopygidae).  Ent. Mon. Mag. 133: 151-156.

Ritchie, J.M. & Dobson, H. 1995.  Desert Locust Control Operations and their Environmental Impacts.  NRI Bulletin 67.  Chatham, UK: Natural Resources Institute.  42 pp

Ritchie, J.M. & Makusi, R. 1995.  Afzelia cuanzensis, new wild host of the maize cob borer, Mussidia nigrivenella in East Africa.  FAO Plant Protection Bulletin, 42 (3) 1994: 152-153.

Ritchie, J.M., 1994. Training in identification of pest organisms.  In: Hawksworth, D.L. (ed.) Identification and Characterization of Pest Organisms.  CAB International, Wallingford.

Hawksworth, D.L. & Ritchie, J.M., 1993.  Biodiversity and Biosystematic Priorities: Microorganisms and invertebrates.  CAB International, Wallingford, UK.  120 pp.

Mungai, M.N. & Ritchie, J.M. 1991.  Hybridization studies of subspecies of the African grasshopper Acanthacris ruficornis (F.) (Orthoptera: Acrididae). Proc. 5th Int. Meeting of the Orthopterists' Society.  Boletin de Sanidad Vegetal y Plagas (Fuera de Serie) 20 (1990): 93-104.

Ritchie, J.M. 1990.  Discussion, in Cheke, R.A. 1990.  A migrant pest in the Sahel: the Senegalese Grasshopper, Oedaleus senegalensis.  Philosophical Transactions of the Royal Society of London B, 328: 551-552.

Ritchie, J.M. & Pedgley, D.E. 1989.  Desert Locusts cross the Atlantic.  Antenna 13 (1): 10-12.

Bagine, R.K.N., Darlington, J.P.E.C., Kat, P.J. & Ritchie, J.M. 1988.  Nest structure, populations and  genetic differentiation of some morphologically similar species of Macrotermes in Kenya. In: Proceedings of a symposium on Fungus growing Termites in the Tropical Environment.  Sociobiology. 15 (2): 125-132

Russell-Smith, A., Ritchie, J.M. & Collins, N.M. 1987.  The surface-active spider fauna of arid bushland in Kora Reserve, Kenya.  Bulletin of the British Arachnological Society 7 (6): 171-174.

Collins, N.M., Ritchie, J.M., Muhangani, J. & Njoroge, J. 1987.  The riverbank arthropod community and considerations for its conservation.  Pp  191-205.  In: Kora: an ecological inventory of the Kora National Reserve, Kenya. (M.J. Coe & N.M. Collins, Eds). Royal Geographical Society, London v + 340 pp.

Darlington, J.P.E.C., & Ritchie, J.M. 1987.  Intercastes between  steriles and nymphs in Macrotermes michaelseni (Isoptera: Termitidae).  Sociobiology. 13 (2): 67-73.

Ritchie, J.M. 1985.  Insect Identification: a new service for East Africa. Span  28 (3). 4 pp