Research Papers: Recent submissions
Now showing items 661-680 of 2360
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The dynamics of Anopheles arabiensis Patton and Anopheles funestus Giles larval densities in relation to small-scale rice cultivation practices in Western Kenya
(University of Nairobi,School of Biological Sciences, 1990)A two-year study was conducted on the densities of Anopheles arabiensis Patton and Anopheles funestus Giles larvae in two rice cultivation sites with divergent farming practices, at the Ahero Irrigation Scheme, Kenya. The ... -
Evaluation of resistance to insecticides in the mosquito larvae of Anopheles gambae Giles and its control by microbial bacterial pathogens
(University of Nairobi,School of Biological Sciences, 1989)It was found that resistance factors of mosquito larvae were near unity for dieldrin, and 2 to 3 times for Malathion at both Ahero and Mwea, and 2 times for DDT at Ahero. These low resistance factors indicated little or ... -
Estimation of the survival rates of field populations of malaria vectors in Kenya
(University of Nairobi,School of Biological Sciences, 1985)Results revealed that the average survival rates between the dry and the wet seasons mosquito populations of individual species was possible in An gambiae s. str. The survival for this species was higher during the dry ... -
Mechanisms of Sorghum resistance to the spotted stalkborer, Chilo partellus (Swinhoe) (Lepidoptera: Pyralidae)
(University of Nairobi,School of Biological Sciences, 1985)The spotted stalkborer Chilo partellus is one of the most notorious pests in Kenya of cereal crops especially maize and sorghum particularly in semi-arid areas. These studies showed that ovipositing maize stalkborers have ... -
Insect pests of Cowpeas Vigna unguiculata (L.) Walp. and studies on Cowpea yield assessment under different chemical spray regimes and minimum use of insecticides against the dominant insect pest species at Katumani Dryland Research Station, Kenya
(University of Nairobi,School of Biological Sciences, 1984)Studies to identify major insect pests attacking cowpea, Vigna unguiculata (L) Walp., in the field and to assess cowpea yields under different chemical control regimes were conducted at Katumani, Kenya during the short and ... -
Studies on Population densities and some aspects of Control of the common Maize Stalkborer Chilo partellus Swinhoe, C. Orichalcocililla Strand. and Sesamia calamistis Hmps
(University of Nairobi,School of Biological Sciences, 1981)The population densities of the three coastal maize stalkborers, Chilo partellus Swin. C. orichalcoiliella Strand. and Sesamia calamistis Hmps. were estimated during the long rains of 1979, 1980 and 1981, showed the ... -
A comparative study on development of the bean beetle Acanthoscelides obtectus (Say) in bean, cowpea, and pigeon pea seed diets
(University of Nairobi,School of Biological Sciences, 1980)Results indicated that the differences in the numbers of beetles developing in beans, pigeon peas, and cowpeas were statistically significant at the third generation level. The average life cycle in a generation was shorter ... -
Pest Management of Grain Legume Crops in Multiple Cropping Systems
(University of Nairobi,School of Biological Sciences, 1979) -
Larval habitats of the common biting midges Culicoides Latreille (Diptera: Ceratopogonidae) in Kenya
(University of Nairobi,School of Biological Sciences, 1972)The larval habitats of Culicoides species were determined by examining a total of 1476 samples collected from different ecological environments in various parts in Kenya. Immature stages were collected from suspected ... -
Fertilizer use and maize production in sub-saharan Africa
(University of NairobiFaculty of Agriculture, 1996)In sub-Saharan Africa, greater use of mineral fertilizers is crucial to increasing food production and slowing the rate of environmental degradation. Regional growth rates in fertilizer consumption have never been particularly ... -
Compensating Pastoralists for Conserving Animal Genetic Resources: The Case of Borana Cattle in Ethiopia
(2013)The Borana cattle in northern Kenya and southern Ethiopia have unique traits that make them suitable for the harsh environment in the lowlands and have ever been part of the pastoralists’ identity. Almost all the traditional ... -
Role of credit in the uptake and productivity of improved dairy technologies in Kenya
(ILRI, Addis Ababa (Ethiopia)Department of Agricultural Economics, 1998)The potential for increasing marketable domestic milk production lives mainly in improving the technologies used as the smallholder farm sector. The other area of concern to complement technology improvement would be to ... -
Agricultural sector development
(University of Nairobi,Department of Plant Science & Crop Production, 1993) -
Rural households’ response to Fuelwood scarcity around Kakamega Forest, Western Kenya
(24-07-13)The debate on forest degradation in Kenya is mainly concerned with the utilization and exploitation of forest resources. Of particular interest is fuelwood, whose scarcity is a major forest degradation concern. Fuelwood ... -
Agronomic, Socio - Economic and Environmental Benefits of Biological Nitrogen - Fixing Systems in Africa.
(University of Nairobi,Department of Land Resource Management & Agricultural Technology, 1995) -
Achievements and impact of NERICA on sustainable rice production in sub - Saharan Africa.
(University of Nairobi,Department of Land Resource Management & Agricultural Technology, 2006)In terms of production, rice is the fourth most important cereal (after sorghum, maize and millet) in sub-Saharan Africa (SSA). It occupies 10 percent of the total land under cereal production and accounts for 15 percent ... -
Wildlife Conservation and Management in Kenya: Towards a Co-management Approach
(2004)The co-management approach of managing natural resources has increasingly become popular among conservationists and development practitioners since it overcomes the shortcomings of both the centralised management and ... -
Sexuality and the use of condom among male university students
(University of NairobiDepartment of obstetrics and gynaecology,University of Nairobi., 1994) -
Analysis of Farmers' Willingness to Conserve Traditional Rice Varieties in the Western Ghats of South India
(2013)Conservation of crop genetic resources is a major preoccupation of the Indian government in particular and the international community at large. Drawing on a random sample of 228 farm households from two regions in the ...
