Faculty of Agriculture & Veterinary Medicine (FAg / FVM): Recent submissions
Now showing items 4761-4780 of 5481
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Reaction of Some Kenyan Maize Genotypes to Turcicum Leaf Blight Under Greenhouse and Field Conditions
(Department of Plant Science and Crop Protection, University of Nairobi, 2007)Fifty seven maize lines comprising 23 open pollinated, 30 hybrids and 4 inbreed lines were evaluated for resistance to Turcicum leaf blight both under greenhouse and field conditions. For greenhouse evaluation, the genotypes ... -
Evaluation of Cabbage Varietal Resistance Against Diamondback Moth (Plutella xylostella) Infestation and Damage
(Department of Plant Science and Crop Protection, University of Nairobi, 2010)This field study was conducted to evaluate the varietal resistance of cabbage (Brassica oleracea var. capitata] against diamondback moth (DBM) (Plulel/a xylostella) infestations and damages at the University of Nairobi ... -
First Record of Spiraling Whitefly in Coastal Kenya: Emergence, Host Range, Distribution and Association with Cassava Brown Streak Virus Disease
(Department of Plant Science and Crop Protection, University of Nairobi, 2010)Unconfirmed reports of a spiraling whitefly-like pest suspected to be contributing to high cassava brown streak disease (CBSD) incidences on cassava prompted a study to determine its presence and importance in coastal ... -
Transmission and distribution of cassava brown streak virus disease in cassava growing areas of Kenya
(Department of Plant Science and Crop Protection, University of Nairobi, 2009)Objectives: To determine the incidence and distribution of cassava brown streak disease (CBSD) in relation to Bemisia tabaci populations in Central, Eastern, Nyanza and Western provinces of Kenya and investigate the ... -
Evaluation of Chilo partellus and Busseola fusca susceptibility to d-endotoxins in Bt maize
(Department of Plant Science and Crop Protection, University of Nairobi, 2010)Susceptibility of Chilo partellus (Lepidoptera, Crambidae) and Busseola fusca (Lepidoptera, Noctuidae) populations to Cry proteins from the bacterium, Bacillus thuringiensis (Bt), the d-endotoxins Cry1Ab and Cry1Ba in ... -
Efficiency of cassava brown streak virus transmission by two whitefly species in coastal Kenya
(Academic JournalsDepartment of Plant Science and Crop Protection, University of Nairobi, 2009-12)The efficiency of cassava brown streak virus (CBSV) transmission by Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) and spiraling whitefly (Aleurodicus dispersus) Russell (Hom, Aleyrodidae) was determined. The ... -
Management of aphids and their vectored diseases on seed potatoes in Kenya using synthetic insecticides, mineral oil and plant extract
(Department of Plant Science and Crop Protection, University of Nairobi, 2010-12)This study was conducted in two seasons of 2002 at Tigoni, Central Kenya to determine effectiveness of insecticides; neem extract and mineral oil in managing potato aphids and their associated virus diseases. The treatments ... -
Laboratory and field investigations using indigenous entomopathogenic nematodes for biological control of Plutella xylostella in Kenya
(Taylor and Francis GroupDepartment of Plant Science and Crop Protection, University of Nairobi, 2008-12)This study was undertaken to determine the potential utility of entomopathogenic nematodes for management of diamondback moth (DBM) larvae in Kenya. Five Kenyan EPN isolates, Heterorhabditis indica, Steinernema ... -
Factors influencing the occurrence of entomopathogenic nematodes in the Central Rift Valley Region of Kenya
(Blackwell Publishing LtdDepartment of Plant Science and Crop Protection, University of Nairobi, 2008)A survey for entomopathogenic nematodes in the central Rift valley region of Kenya was conducted at altitudes between 1800 and 3000 m above sea level and from croplands and noncropland habitats. The sampling depth was ... -
Within-plant distribution and seasonal population dynamics of flower thrips (Thysanoptera: Thripidae) infesting French beans (Phaseolus vulgaris L.) in Kenya
(Department of Plant Science and Crop Protection, University of NairobiSchool of Biological Science, University of Nairobi, 2009)The aim of this research was to study spatial distribution of flower thrips on French beans (Phaseolus vulgaris L.) in Kenya. Their build up and seasonal population dynamics was monitored using sticky blue colour traps ... -
Efficacy of thidiazuron in in vitro propagation of carnation shoot tips: influence of dose and duration of exposure
(Department of Plant Science and Crop Protection, University of Nairobi, 2003)One of the main challenges facing production of good quality cut flowers is the lack of clean planting material especially among resource poor farmers who resort to multiplying their own propagules with detrimental results. ... -
Retail poultry and beef as sources of campylobacter jejuni
(Department of Public Health, Pharmacology and Toxicology, 1999)Objectives: To investigate the level of contamination with C. jejuni of raw chicken and beef meats sold in Nairobi and to assess their potential as sources of campylobacter infections to man. Design: Dressed chicken and ... -
Food borne diseases in Kenya
(Department of Public Health, Pharmacology and Toxicology, 2001)Objectives: To determine the occurrence of food borne disease outbreaks in Kenya and the efforts employed to combat them. Design: Cross-sectional survey. Setting:. Forty two districts in Kenya between 1970 and 1993. ... -
Brucellosis in sub-Saharan Africa: epidemiology, control and impact
(Department of Public Health, Pharmacology and Toxicology, 2002)Brucellosis is an important disease among livestock and people in sub-Saharan Africa. In general, the incidence is the highest in pastoral production systems and decreases as herd size and size of landholding decreases. ... -
Evaluation of bread wheat for both seedling and adult plant resistance to stem rust
(Department of Plant Science and Crop Protection, University of Nairobi, 2012)Wheat is an important staple food crop in sub-Saharan Africa. However, the current wheat consumption of 900 000 tons in Kenya outweighs the wheat production of 350 000 tons given the high population growth and inflation. ... -
Sources of resistance to stem rust among selected wheat germplasm
(Department of Plant Science and Crop Protection, University of Nairobi, 2011-09)Wheat (Triticum aestivum) is an important staple food crop contributing to food security and income generation among resource poor farmers. However, the crop is threatened by stem rust which pose a major constraint to wheat ... -
Contour Hedgerows and Grass Strips in Erosion and Runoff Control on Sloping Land in Semi-Arid Kenya
(Taylor and Francis GroupDepartment of Meteorology, University of Nairobi,Department of Agricultural Engineering, University of Nairobi,, 2007)Most early alley cropping studies in semi-arid Kenya were on fairly flat land while there is an increase in cultivated sloping land. The effectiveness of aging contour hedgerows and grass strips for erosion control on an ... -
Evaporation from soils below sparse crops in contour hedgerow agroforestry in semi -arid Kenya
(Department of Meteorology, University of NairobiDepartment of Agricultural Engineering, University of Nairobi,, 2005)In many agricultural systems in the semi-arid tropics, crops use only a small fraction of the total rainfall. Agroforestry can greatly reduce some losses, especially on hi II slopes, where soi I evaporation, runoff and ... -
Effects of Mulch and Potato Hilling on Development of Foliar Blight (Phytophthora infestans) and the Control of Tuber Blight Infection
(Department of Plant Science and Crop Protection, University of Nairobi, 2008)Foliar and tuber blight caused by Phytophthora infestans accounts for significant losses in potatoes in field and storage. Nevertheless, limited research has been published on the effects of cultural practices on late ... -
Development of Tuber Blight (Phytophthora infestans) on Potato Cultivars Based on In Vitro Assays and Field Evaluations
(Department of Plant Science and Crop Protection, University of Nairobi, 2008-08)Tuber blight may result from infection of wounded or unwounded potato tubers exposed to sporangia from foliar blight, soil, or blighted tubers. However, there are limited data on the prediction of tuber blight in field ...
