Doctor of Philosophy (PhD): Recent submissions

Now showing items 101-120 of 373

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)
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 ...
The Digestive Aspartic Proteinases of the Brown Ear Tick

Vundla, Waha R.M. (University of Neuchatel, 1990)
Polymorphism and the Role of Hormones in Caste Differentiation of a Higher Termite Species Macrotermes michaelseni (Isoptera, Macrotermitinae)

Okot-kotber, Billie Moses (University of Dijon, 1979)

Biometric studies coupled with physiological investigations have made it possible to propose a scheme of post-embryonic development and polymorphism in Macrotermes michaellseni. ...(continue from the attached PDF)
Ecology and Management of the Leafhopper Vectors (Cicadulina Spp.) of Maize Streak Virus

George, Diederick Janse van Rensburg (University of Stellenbosch, 1990)

Several Cicadulina species are important pests of maize by virtue of their role as vectors of maize streak virus (MSV). Tnis study deals with various aspects of the vector/virus/host plant relationship. Developmental ...
Neem Seed for the Management of the Banana Weevil, Cosmopolites sordidus germar (Coleoptera: Curculionidae) and Banana Parasitic Nematode Complex

Musabyimana, Thaddee (Kenyatta University, 1999)

The study was conducted in western Kenya, a prime banana growing area during the period of May 1996 to February 1999. The objectives were to control the banana weevil and parasitic nematodes with neem materials, thereby ...
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 ...
Innovative Control Methods for Amblyomma Variegatum (Fabricus, 1794), using Entomopathogenic Fungi, Beauveria Bassiana and Arhizium Anisopliae in Traps Baited with the Attraction-Aggregation-Attachment Pheromone

Maranga, Rosebella Orangi (Jomo Kenyatta University of Agriculture and Technology, 1998)

Studies were commenced to investigate the potential use of the fungi, Beauveria bassiana and Metarhizium anisopliae and the attraction-aggregation-attachment pheromone (AAAP) for the control of Amblyomma variegatum. The ...
Mechanisms of Location of Amblyomma variegatum (Fabricius) and other Livestock Ticks by the Parasitoid Ixodiphagus hookeri Howard

Demas, Fanuel Afrika (University of Zimbabwe, 1997)

The control of Amblyomma variegatum and other economically important ticks, like Rhipicephalus appendicu/atus, has relied mainly on the use of acaricides worldwide. However, due to the drawbacks of chemical control, ...
Discrimination of Hypotrigona species (Apidae: Meliponinae) in Kenya using nest architecture, cephalic secretions and molecular tools

Ndungu, Nelly Njeri (University of Pretoria, 2019)

Stingless bees are important pollinators contributing significantly to biodiversity and food security. Stingless bees produce honey that has high medicinal value that fetches higher prices compared to the honey produced ...
The Host Relationships of the Tick Amblyomma Variegatum in Rabbits and Cattle

Abdullahi, Abdel Latif Ibrahim (University of Khartoum, 1986)

Repeated feeding of the different life stages of Amblyomma variegatum and Rhipicephalus appendiculatus on foμr groups of rabbits induced resistance in these animals. Resistance to the adults was manifested by reduced ...
Anti-Tick Properties of Selected East African Plants against the Brown Ear Tick Rhipicephalus Appendiculatus Neuman and Identification of some of their Secondary Compounds

Bakari, Salim Kiondo Kaoneka (Moi University, 1998)

Hexane, ethyl acetate and methanol extracts of Commiphora swynertonii Burtt., Turraea cormicopia (L), T abyssinica, T. floribunda and Melia volkensii Gurke were tested for anti-tick activity against the larvae and adult ...
Ethnobotanicals for management of the brown ear tick Rhipicephalus appendiculatus in western Kenya

Wanzala, Wycliffe (2009)

This thesis describes the results of a study to assess the effect of ethnobotanical products on the behaviour of the brown ear tick Rhipicephalus appendiculatus, the main vector of East Coast fever in sub-Saharan Africa. ...
Bio-ecological studies of Tuta absoluta in Sudan

Idriss, GE (North West University, 2019)

Production of tomato crops in Sudan is threatened by the invasion of Tuta absoluta (Meyrick). This pest develops and disperses rapidly and it is also known to develop resistance to insecticides. Knowledge of its bio-ecology ...
Management of Spoladea recurvalis (Lepidoptera: Crambidae) on amaranths using biopesticides

Miller, SO (North- West University, 2019)

Amaranths are African indigenous vegetables (AIVs) that are gaining popularity in several countries around the world due to their nutritional, medicinal and economic values. Insect pests are however a major challenge to ...
Behavioural responses of rhipicephalus appendiculatus Neumann 1901 and Rhipicephalus Evertsi Neumann 1897 (Acari: Ixodidae) to Host and Non-host Semiochemicals

Noel, Sika Fra Kutua (Kenyatta University, 1996)

On-host observations and laboratory behavioural assays were undertaken to investigate the role played by (a) bovine host-derived semiochemicals from the ear and anal region and (b) semiochemicals derived from conspecifics, ...
Pheromone and population genetics analyses of Clavigralla species in Africa

Kpongbe, Hilaire (North-West University, 2019)

Cowpea (Vigna unguiculata (L.) Walp) and common bean (Phaseolus vulgaris (L.)) are major sources of protein for human and animal consumption. Production of these crops is hampered by insect pests, especially the complex ...

Now showing items 101-120 of 373

Search icipe Repository

Advanced Search

Browse

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

Recently added

Doctor of Philosophy (PhD): Recent submissions

Search icipe Repository

Browse

All of DSpace

This Collection

My Account