Masters: Recent submissions

Now showing items 141-160 of 325

Adaptation of Field Strains of Rhipicephalus Appendiculatus, Neumann to Host Resistance to Tick Infestation

Chiera, John Wachira (University of Nairobi, 1986)

The possibility of adaptation to host resistance by field strains of R. appendiculatus was investigated by comparing the feeding and breeding performance of two field strains with a laboratory strain (Muguga) which has ...
A Morphometric Study of the Cassava Green Mite, Mononychellus Spp. (Acari: Tetranychide) in Africa

Rosetta, Bekinwari Bob-Manuel (Rivers State University of Science and Technology, 1987)

The study deals with investigations undertaken to assess and identify characters other than the dorso-central body setal lengths (D1-D3) in the adult females for better morphological understanding of the Mononychellus spp. ...
Studies on Pheromones and other Semiochemicals of the African Brown Ear Tick, Rhipicephalus Appendiculatus Neumann

Akinyi, Syprine (Kenyatta University, 1991)

Ticks re of great concern all over the world because of the diseases they transmit in livestock resulting in a reduction i n livestock productivity. Studies of pheromones and other semiochemicals of ticks have shown promise ...
Resistance status of the tobacco spider mite ( Tetranychus evans1) to currently recommended acaricides on tomatoes ( Lycopersicon lycopersicum) and the effects of these acaricides on natural enemies of vegetable pests

Rowena, Judith Kwaramba (University of Zimbabwe, 2002)

Laboratory studies were performed on tobacco spider mites (Tetranychus evansi) collected from Chinamhora and Mutoko to investigate grower claims of resistance to commonly used acaricides. Bioassays of T evansi collected ...
Genetic Variation in Two Populations of the Brown Ear Tick, Rhipicephalus Appendiculatus, in Kenya

Baliraine, Fredrick Ndhoga (University of Nairobi, 1996)

Several studies have shown that Rhipicephalus appendiculatus from geographically isolated areas differ in their susceptibilities to Theileria parva, the haemoprotozoan causative agent of East Coast Fever. In Kenya, R ...
Analysis of Microbial Load and Diversity in Crickets (Gryllus Bimaculatus and Scapsipedus icipe) used as a source of protein for food

Gatheru, Jedida Wanjiru (Kenyatta University, 2019)

Crickets are drawing interest as sustainable source of protein for food and feed worldwide. However, there is little information on microbial quality of edible crickets thus the need for a profound insight into their ...
Evaluation of Knowledge and Practices of Managing citrus pests and diseases and the willingness to pay for an Integrated Pest Management strategy in selected counties in Kenya

WANGUI GITAHI, DOROTHY (Egerton University, 2018)

Citrus is a major source of income in Kenya for both large and small scale farmers. However, citrus productivity has been declining over the years mainly due to pests and diseases, particularly the African Citrus Trioza ...
Assessment of Kairomones as a Monitoring Tool for Cotesia Flavipes Cameron (Hymenoptera: Braconidae)

Ngumbi, Esther Ndumi (Kenyatta University, 2002)

Chilo partellus (Swinhoe) is a major pest of maize in East Africa. Its indigenous natural enemies are unable to regulate its densities to a level acceptable to farmers. Cotesia flavipes Cameron (Hymenoptera: Braconidae), ...
Efficiency of Xanthopimpla Stemmator against selected Lepidopteran Pest and its Interaction with Pupal Endoparasitoid Pediobius Furvus in Graminaceous Plants in Kenya

John, Jamleck Muturi (Kenyatta University, 2004)

Chilo partellus (Swinhoe) (Lepidoptera: Crambidae) is a major pest and a threat to cultivated poaceous plants in many pa1ts of Africa. The adverse ecological and environmental effects as well as the cost of chemical ...
Studies on seed conservation and Propagation of the Neem Tree (Azdirachta indica a juss) in Sudan

Elteraify, Intisar Elnour (University of Khartoum, 1996)

Neem tree (Azadirachta indica A. Juss ) is a multipurpose tree widely planted in Sudan. Recently the tree has been singled as a high priority species for natural pesticide this gives it an economic importance. Fresh seeds ...
Comparative efficacy of Neem(Azadirachta indica) and Amitraz (Mitac) against the two spotted spider mites (Tetranychus Urticae), on Tomatoes (Lycopersicum esculentum)

Kashenge, Sophia Shaban (Sokoine University of Agriculture, 1999)

Various neem (Azadirachta indica. A. Juss) formulations were evaluated under laboratory and greenhouse conditions for their effects on two-spotted spider mites, Tetranychus urticae Koch (Prostigmata: Tetranychidae), on ...
Localization and Functional analysis of an Aquaporin Gene (AQP 4886_gp) from Tsetsefly, Glossina Pallidipes

Ltilitan, Bargul Joel (Jomo Kenyatta University of Agriculture and Technology, 2011)

Tsetse flies are vectors of African trypanosomes, the protozoan agent of devastating disease, trypanosomiasis that afflicts both humans and animals. Currently, there is no promising vaccine in the horizon and treatment ...
Evaluation of Knowledge and Practices of Managing Citrus Pests And Diseases and the Willingness to pay for an Integrated Pest Management Strategy in Selected Counties in Kenya

Gitahi, Dorothy Wangui (Egerton University., 2016)

Citrus is a major source of income in Kenya for both large and small scale farmers. However, citrus productivity has been declining over the years mainly due to pests and diseases, particularly the African Citrus Triozid ...
Purification and Properties of the Low Molecular Weight Protein from Haemolymph of the Tsetse Fly, Glossina Morsitans Morsitans

Nguu, Edward Kinyua (University of Nairobi, 1990)

Tsetse fly is an insect of great economic importance to man because it transmits sleeping sickness to both man and his livestock. The insect feeds on a bloodmeal thereby transmitting the disease from infected to healthy ...
Purification and characterization of Trypanoagglutinin from the Midgut of Tsetse fly, Glossina Longipennis

Abubaker, Laila Uweso (University of Nairobi, 1994)

The tsetse fly is an insect of great economic importance to man as a vector of both human and animal trypanosomiasis. Trypanosomes are ingested by the tsetse fly vector with a bloodmeal taken from .an infected host. In ...
Cloning and Functional Analysis of Trans-Splicing Factors in Trypanosoma brucei

Owino, V. A. (Egerton University, 2006)

Trypanosomes are parasitic protozoa that cause trypanosomosis. The disease is a threat to human population and a major impediment to livestock production and economic development in many countries in sub-Sahara Afiica, ...
The Impact of Human Land use activities and Seasonal changes on the Dung Beetle Diversity of Kakamega Forest Ecosystem

Mahiva, Vincent Shitakule (University of Nairobi, 2005)

Based on quantitative comparative data collected m Kakamega forest and the surrounding farmlands, analyses were done to ascertain to which extent different modes of land use and seasonal changes affect guild structure, ...
Swelling of Polymer-Oligomer Particles

Mfutakamba, Habiba Rajabu (University of Dar-es-Salam, 1980)

A quantitative study of the swelling capacity of polymer-oligomer particles, and the rate of transport of slightly water soluble compound 1, e.g. chlorobenzene, from bulk phase to the particles has been carried out. A much ...
Bio-Prospecting for Phytochemical Repellents/Adulticides of Anopheles Gambiae

Omolo, Maurice Ochilo (Kenyatta University, 2001)

Mosquitoes are vectors of vast economic and medical importance. They transmit life threatening human and animal diseases such as malaria, viral encephalitis, dengue fever, filariasis, and dog heart worms. Currently, malaria ...
Borrowing and Off-farm Employment: Conditional Strategies to Reduce Seasonal Fluctuations in Food Security A case study from India

Negash, Martha (Wageningen Agricultural University, 1998)

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