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| Le progrès enregistré dans la lute contre la mosaïque du manioc dans les provinces du Nord et Sud Kivu à l?Est de la République Démocratique du Congo, Tata-Hangy, K.*, Legg, J., Phemba, P., Ntawuruhunga, P., Lema, K., Mahungu, N., Bidiaka, S. and Walsh, S., Abstract (Oral presentation) in Book of Abstracts of the 11th Triennial Symposium of ISTRC-AB, held at Memling Hotel, Kinshasa. 4-8 October, 2010. |
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| Thrips (Tripidae; Thysanoptera) infestation on cassava (Manihot esculenta Crantz) at Mvuazi INERA research station, Bas-Congo province in the Democratic Republic of Congo, Tata-Hangy, K.*, Kupesa, F. T., Mahungu, N. and Lema, K., Abstract (Poster) in Book of Abstracts of the 11th Triennial Symposium of ISTRC-AB, held at Memling Hotel, Kinshasa. 4-8 October, 2010. |
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| The incidence of the cassava mosaic disease in relation with the source of planting materials and its impact on cassava production, Tata-Hangy, K.*, Legg, J., Lema, K., Hanna, R. and Luyindula, N.*, in: Root and tuber crops for poverty alleviation through science and technology for sustainable development: proceedings of the 10th Symposium of ISTRC-AB held from 8-12 October, 2007 in Maputo, Mozambique, pages 371-379, ISTRC-AB, 2010. |
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| Les facteurs determinant l'abondance du vecteur mouche blanche (Bemisia tabaci, Homoptera: Aleyrodidae) et les types des virus distribues sur le manioc en R.D. Congo, Bakelana, T.*, Legg, J., Lema, K., Hauser, S. and Mahungu, N., Abstract in Book of Abstracts of the 11th Triennial Symposium of ISTRC-AB, held at Memling Hotel, Kinshasa. 4-8 October, 2010. |
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| Etude de la dynamique des populations et criblage des accessions de manioc maintenues dans le germoplasme de lâ??INERA pour leur resistance a la mouche blanche (Bemisia tabaci, Homoptera : Aleyrodidae), Bakelana, T.*, Lema, K., Legg, J. and Mahungu, N., Abstract in Book of Abstracts of the 11th Triennial Symposium of ISTRC-AB, held at Memling Hotel, Kinshasa. 4-8 October, 2010. |
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| Incidence and distribution of cassava diseases and pests in the Democratic Republic of Congo, Tata-Hangy, K.*, Legg, J., Hanna, R., Toko, M., Lema, K., Dixon, A. and Mahungu, N., in: Proceedings of the 9th ISTRC-AB Symposium, pages 614-622, Mombasa, Kenya, 2007. |
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| Changes in population abundance of the African root and tuber scale Stictococcus vayssierei Richard (Homoptera; Stictococcidae) on cassava in the Bas-Fleuve District in The Democratic Republic of Congo, Tata-Hangy, K.*, Hanna, R., Toko, M., Lema, K. and Solo, M., in: Proceedings of the 9th ISTRC-AB Symposium, pages 574-582, Mombasa, Kenya, 2007. |
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| Strategic cassava production rehabilitation in the Democratic Republic of Congo through accelerated germplasm development and deployment, Lema, K., Dixon, A., Mahungu, N., Ilona, P., Nluta, S.*, Kimfuema, J., Lukombo, S.* and Bidiaka, M., in: Proceedings of 9th ISTRC-AB symposium, pages 540-547, Mombasa, Kenya, 2007. |
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| Notes on the African root and tuber scale, Stictococcus vayssierei Richard, a recent reported cassava pest in the Bas-Congo Province of the Democratic Republic of Congo, Tata-Hangy, K.*, Lema, K., Ndambi, N., Lutete, D., Hanna, R., Toko, M. and Nkakwa, A., in: Roots, volume 1, number 10, pages 1-8, 2006. |
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| The African root and tuber scale problem in Central Africa: the nature of the problem and the search for control options, Hanna, R., Tindo, M., Wijnans, L., Goergen, G ., Tata-Hangy, K.*, Lema, K., Toko, M., Ngeve, J. and Gockowski, J., in: 9th Triennial Symposium of the International Society for Tropical Root Crops-Africa Branch, 31 October-5 November 2004, Mombasa, Kenya, 2004. |
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| Population dynamics of the African root and tuber scale on cassava in the Bas-Fleuve District of the Democratic Republic of Congo, Tata-Hangy, K.*, Hanna, R., Toko, M. and Lema, K., in: Book of Abstracts of the 9th Triennial Symposium of the International Society for Tropical Root Crops-Africa Branch 31 October-5 November 2004, Mombasa, Kenya, 2004. |
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| Rehabilitation of the cassava production in the Democratic Republic of Congo through germplasm development and deployment, and the promotion of new food products, Lema, K., Dixon, A., Mahungu, N., Ilona, P., Kimfuema, J. and Lukombo, S.*, in: Book of Abstracts, 9th Triennial Symposium of the International Society for Tropical Root Crops-Africa Branch, 31 October-5 November 2004, Mombasa, Kenya, 2004. |
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| Management of African root and tuber scale using improved cassava genotypes and mineral fertilizers, Lema, K., Tata-Hangy, K.* and Bidiaka, M., in: African Crop Science Journal, volume 12, number 3, pages 217-221, ISSN 1021-9730, 2004. |
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| Perspectives on cassava IPM in the Democratic Republic of Congo, Lema, K., Tata-Hangy, K.*, Toko, M. and Hanna, R., in: Paper presented at: Proceedings of the 3rd Inter-regional Meeting of the Africa-wide Cassava Green Mite Biocontrol Project, International Institute of Tropical Agriculture (IITA), Biological Control Center for Africa, Cotonou, Benin, 2003. |
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| Status of Stictoccocus vayssierei Richard and its impact on cassava root yield in the Bas-Fleuve district of the Democratic Republic of Congo, Tata-Hangy, K.*, Hanna, R., Lema, K., Bidiaka, M. and Ndambi, N., pages 37, International Institute of Tropical Agriculture (IITA), Ibadan, Nigeria, 2001. |
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| Effectiveness of the polyethylene plastic mulch as a control measure against sweet potato weevils (Cylas spp., Coleoptera: Curculionidae), Lema, K., Osiru, D.* and Hahn, S. K., in: Root crops for food security in Africa: proceedings of the Fifth Triennial Symposium of the International Society for Tropical Root Crops-African Branch 22-28 November 1992, Kampala, Uganda, pages 302-306, ISTRC-AB; CTA; International Institute of Tropical Agriculture (IITA), 1994. |
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| Breeding cassava and sweet potato for pest and disease resistance in Africa, Hahn, S. K., Caveness, F. E., Lema, K. and Theberge, R. L., pages 66-72, International Institute of Tropical Agriculture (IITA), 1990. |
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| Effects of cassava pubescene on the behaviour, post-embryonic development and reproduction of the cassava mealybug, Phenacoccus manihoti matile-ferrero (Homoptera: pseudococcidae), Kasu, T.*, Odebiyi, J. A.* and Lema, K., in: Insect Science and its Application, volume 10, number 2, pages 123-129, ISSN 0191-9040, 1989. |
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| Effects of weather conditions on insect populations with particular reference to the sweet potato weevils (Cylas spp.) and time of planting as control strategy, Lema, K., in: Proceedings of the Seminar on Agronometeology and Crop Protection in the Lowland and Sub-humid Tropics, pages 223-227, World Meteorological Organization, 1987. |
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| The influence of constant temperature on population growth rates of the cassava mealybug, Phenacoccus manihoti, Lema, K. and Herren, H. R., in: Entomologia experimentalis et applicata, volume 38, number 2, pages 165-169, ISSN 0013-8703, 1985. |
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| Release and establishment in Nigeria of Epidinocarsis lopezi, a parasitoid of the cassava mealybug, Phenacoccus manihoti, Lema, K. and Herren, H. R., in: Entomologia experimentalis et applicata, volume 38, number 2, pages 171-175, ISSN 0013-8703, 1985. |
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| Biological control of the mealybug, Phenacoccus manihoti, and the green spider mite complex, Mononychellus ssp, on cassava, Manihot esculenta, in Africa, Herren, H. R., Lema, K. and Neuenschwander, P., in: Paper presented at the Third Brazilian Cassava Congress, 20-25 November 1983, Brighton, England, pages 20-25, 1983. |
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| The mealybug front hypothesis: possible role of indegenous natural enemies, Lema, K., Hennessey, R. D. and Herren, H. R., 1983. |
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| Effect of fertilizer application on the development and reproduction of the cassava mealybug, Lema, K. and Mahungu, N., in: Paper presented at Second Triennial Symposium of the International Society for Tropical Root Crops-Africa Branch,14-19 August,1983 Douala,Cameroon, pages 14-19, 1983. |
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| Cassava mealybug: first successful release, Herren, H. R. and Lema, K., in: Biocontrol News and Information, volume 3, pages 186, ISSN 0143-1404, 1982. |
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| La chocenille du manioc: organisation d'un programme de luttle biologique a' IITA, Lema, K., in: Paper presented to conference at the Faculty of Agriculture, National University of Zaire, 1982. |
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| Bionomics of Phenacoccus manihoti, an introduced pest of cassava in Africa, Lema, K. and Herren, H. R., in: Paper presented at workshop on Biocontrol and Resistance Breeding to Control the Cassava Mealybug and Green Spider Mite in Africa, 6-10 December, 1982, 1982. |
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| Relationship of temperature and development in Apoanagyrus lopezi (Hmenoptera: Encyrtidae) and Scymnus sp (Coleoptera: Coccinellidae), Lema, K. and Herren, H. R., in: Paper presented at the International Workshop on Biological Control and Host Plant Resistance to Control the Cassava Mealybug and the Green Spider Mite in Africa. 6-10 December 1982r, 1982. |
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| Biological Control of Cassava Mealybug and Cassava Green Mite: Front-line Release Strategy, Lema, K. and Herren, H. R., in: Root Crops in Eastern Africa. Proceedings of a workshop, pages 68-69, 1982. |
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| Biological control of the cassava mealybug and green spider mite with emphasis on the front of the release strategy, Lema, K. and Herren, H. R., in: Paper presented at the Symposium on root and tuber crops. Kigali, November, 1980, 1981. |
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| Effect of constant temperatures on the development of the cassava mealybug., Lema, K. and Herren, H. R., in: Paper presented at the International workshop on cassava mealybug and green spider mite, Umudike, 12-16 October 1981, 1981. |
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| Biological control of the cassava mealybug (Phenacoccus manihoti MAT-FER) with emphasis on dispersal frontline release on dispersal frontline release strategy, Herren, H. R. and Lema, K., 1980. |
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