Theses & Dissertations: Recent submissions

Now showing items 221-240 of 698

Medical Ethnobotany of the Isthmus-Sierra Zapotecs (Oaxaca, Mexico) and Biological-Phytochemical Investigation of Selected Medicinal Plants

Frei, Barbara (Swiss Federal Institute of Technology Zurich, 1997)

The Zapotec inhabitants of the Isthmus' Sierra of Tehuantepec in Oaxaca (Mexico) live in a tropical area of great botanical diversity. In daily subsistence and in response to illness, plants still play a major role. ...
The Sweet Potato Butterfly Acraea acerata in Ethiopia

Ferdu, Azerefegne (1999)

The sweet potato butterfly (Acraea acerata Hew.) has become an important pest on sweet potato in Southern Ethiopia in the last two decades. This thesis deals with its ecology and economic importance in Southern Ethiopia.The ...
Patterns of Relationship between Banana (musa spp.) types and the Banana weevil, Cosmopolites Sordidus (germar)(Coleoptera:Curculionidae)

Sumani, Alfred Joseph (University of Zambia, 1997)

Banana (Musa spp.) is an important food crop of the humid tropical lowland areas of the world. Banana production is beset by several problems, related to crop husbandry, selection of planting material, soils, diseases, and ...
An Economic Analysis of Damages and other Losses by Ticks and Tick Borne disease Particulary in Relation to East Coast Fever (ECF)

Mwaura, Mwega Francis (University of Nairobi, 1980)

Ticks and Tick-borne diseases are a major impediment to the developrrent of the livestock sector in Kenya. They cause significant production losses through mortality, impair productivity of surviving anirrals, and discourage ...
Effects of Cultivar, Isolate and Environment on rResistance of Wheat to Septoria Tritici Blotch in Kenya

Arama, Peter F (Wageningen Agricultural University, 1996)

The research described in this thesis focused on the characterization of some of the factors that influence disease assessment, development and expression of resistance in wheat cultivars to septoria tritici blotch. Earliness ...
Studies on Indigenous Bacillus Thuringiensis Isolates active against Selected Insect Pests

Oketch, Matilda (Kenyatta University, 2001)

The overall goal was to contribute to crop-productivity by developing sustainable pest management and the objective was to select and identify an efficacious local B. thuringiensis isolate active against the selected stem ...
Mechanisms for Selective Toxicity of Locally Isolated strains of Bacillus Thuringiensis (Berliner).

Kenya, Eucharia Unoma (River State University of Science and Technology, 1995)

Bacillus thuringiensis is a gram-positive soil-dwelling bacterium. It produces a crystalline insecticidal protein (delta-endotoxin), during the sporulation phase of its growth. Several strains have been isolated and the ...
Studies on Factors Affecting the Distribution and Abundance of Phlebotomine Sandflies in a Leishmaniasis Endemic Focus in Baringo District, Kenya

Basimike, Mulenda (State University of Science and Technology, 1988)

Factors affecting the distribution and abundance of Phlebotornine sandflies were studied during the period 1985 to 1987, in the Marigat leishrnaniasis endemic area, located in Baringo district, Kenya. It was found that ...
Bio-control potential of the Fungus Beauverja Bassiana (balsamo) against the Desert locust, schistocerca gregaria (forskal)

kambona, Kenneth (1996)

Pathological potential of the fungus Beauveria bassiana Balsamo on the desert locust Schistocerca gregaria Forsk was evaluated with an aim to develop a mycoinsecticide as a supplement to the persistent chemical insecticides ...
Ecology of Malaria Vectors in Relation to an Irrigation Scheme in Baringo District, Kenya

Aniedu, Ifeanyi (Rivers State University of Science and Technology, 1988)

A comparative study of the ecology of mosquito vectors of malaria was carried out in the Parkerra irrigation scheme and the Loboi swamp in Baringo districy, Kenya. The swamp was found to be more productive than the irrigation ...
Studies on the Midgut Lectin Gene of Glossina Austeni

Amin, Daniel Ndem (Kenyatta University, 2005)

Trypanosomiasis continues to be a serious problem in sub-Saharan Africa. The inadequacies of existing control strategies necessitate the development of alternative control measures. In most cases, the causative agents ...
Expression of the Glossina Proteolytic Lectin (Gpl) Gene in Tsetse Flies and other Haematophagous Arthropods

Warigia, Burugu Marion (Kenyatta University., 2004)

African animal trypanosomosis, transmitted by the tsetse fly (Glossina spp.) remains a major constraint to food security in areas of Africa that hold the continent's greatest potential for expanded agriculture production. ...
Pupal Ecology and Role of Predators and Parastoids in Natural Population Regulation of Glossina pallidipes Austen (Diptera :Glossinidae) at Nguruman, Kenya

Adabie, Delphina Aba (University of Ghana, 1987)

A two-year progranme was carried out at Nguruman in the Kajiado District of the Rift Valley Province of Kenya, to identify the characteristics of larviposition sites, quantify pupal mortality rates, determine predators and ...
Biological performance, response and population dynamics of Tetranychus evansi (Acari: Tetranychidae), as influenced by different African nightshade (Solanales: Solanaceae) species

Murungi, Lucy Kananu (Jomo Kenyatta University of Agriculture and Technology, 2010)

Despite the vast research on trichome-based resistance as well as plant chemical factors in plant-herbivore interactions in Solanaceous plants, little or no information is available on the association between Tetranychus ...
The Role of Predators, Parasitoroids and Pathogens in Regulating Natural Populations of the Non-Parasitic Stages of Rhipicephalus Appediculatus Neumann and other Livestock Ticks, and Related Aspects of the Ticks Ecology

Mwangi, Esther Njoki (Kenyatta University., 1991)

Natural enemies of the important ticks in Kenya were studied with a view to assessing their role in regulating natural populations, and their possible use in biological control of ticks. Predators of engorged females of ...
Potential of Integrating Calpurnia aurea with Entomopathogenic Fungus Jlfetarhizium anisopliae for the Control of Rhipicephalus appendiculatus and Rhipicephalus pulchellus

Nana, Paulin (Jomo Kenyatta University of Agriculture and Technology, 2010)

Ticks of the genus Rhipicephalus are important parasites of livestock in the world. Rhipicephalus ticks cause huge economic losses to cattle and have a great capacity to develop resistance to chemical acaricides. There ...
Development of formulations and delivery systems to control economically important ticks with entomopathogenic fungi

Nchu, Felix (University of Pretoria, 2009)

Due to the rapid development of tick resistance to synthetic chemical acaricides and the potential risk posed by these chemicals to non-target species, efforts are intensifying towards the development of entomopathogenic ...
The Population Dynamics of the Cassava Green Spider Mite, Mononychellus Tabajoa 9Bondar) (Acarina : Tetranychidae) in Relation to its Predators and Environmental Factor in Western Kenya

Ndonga, Millicent Florence Owuor (Kenyatta University, 1991)
A Biochemical Investigation of the Taxonomy of the Cassava Green Mite Mononychellus spp. (Acari: Tetranychidae) in Kenya

Oyugi, Kenneth Kambona (Rivers State University of Science and Technology, 1989)

Biochemical methods have been applied to elucidate the species systematics of cassava green mite (CGM). Traditionally CGM have been classified using the length of the dorso-central setae (D1-o3 ), which groups CGM into ...
An assessment of the use of Botanical Extracts and Pheromones for the Off-Host and O-Host control of Amblyoma Variegatum Tick

Toure, Alioune (Kenyatta University, 2005)

The livestock tropical bont tick, Amblyomma variegatum Fabricius, is a pest of major economic importance in Africa where it is the vector of Cowdria ruminantium that causes Heartwater, disease in cattle. Its control has ...

Now showing items 221-240 of 698

Search icipe Repository

Advanced Search

Browse

All of DSpace
This Community
- By Issue Date
- Authors
- Titles
- Subjects

Recently added

Theses & Dissertations: Recent submissions

Search icipe Repository

Browse

All of DSpace

This Community

My Account