Browsing Faculty of Science & Technology (FST) by Author "Kaaya Godwin P."
Now showing items 41-60 of 63
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Mortality in adult tsetse, Glossina morsitans morsitans, caused by entomopathogenic bacteria
Kaaya Godwin P.; Darji N. (University of Nairobi.School of Biological Sciences, 1989-07)Mortality in adult tsetse, Glossina morsitans morsitans, caused by Pseudomonas aeruginosa, Serratia marcescens, Bacillus sphaericus, Bacillus cereus, Bacillus thuringiensis H-14, B. thuringiensis 1, B. thuringiensis 5, B. ... -
Non-chemical agents and factors capable of regulating tick populations in nature: A mini review
Kaaya Godwin P. (University of Nairobi.School of Biological Sciences, 1992-08)Ticks have always been a major obstacle to livestock production due to the devastating diseases which they transmit especially in the tropics. The control of ticks which has relied heavily on the use of acaricides is now ... -
Pathogenicity of the entomopathogenic fungus Metarhizium anisopliae to the red-legged tick, Rhipicephalus evertsi evertsi
Hedimbi Marius.; Kaaya Godwin P.; Samish GP Michae.; Gindin M Galina.; Glazer Itamar. (University of Nairobi.school of Biological Sciences, 2011)Rhipicephalus evertsi evertsi is an economically-important tick of livestock in Africa mainly due to its ability to transmit Babesia equi to horses, Anaplasma marginale to cattle and to cause paralysis in lambs, adult sheep ... -
Performance of a prototype baited-trap in attracting and infecting the tick Amblyomma variegatum (Acari: Ixodidae) in field experiments
Maranga RO.; Hassanali A.; Kaaya Godwin P.; Mueke JM. (University of Nairobi.School of Biological Sciences, 2006)Investigations were commenced to study the potential use of the fungi, Beauveria bassiana, Metarhizium anisopliae, and the attraction-aggregation-attachment pheromone (AAAP) for the control of Ambloyomma variegatum as an ... -
The potential for antitick plants as components of an integrated tick control strategy
Kaaya Godwin P. (University of Nairobi.school of Biological Sciences, 2004) -
The potential for antitick plants as components of an integrated tick control strategy
Kaaya Godwin P. (University of Nairobi.School of Biological Sciences, 2000)Extracts from various African plants have been shown to possess strong acaricidal and/or tick repellent properties. Some of the plant extracts are capable of reducing tick feeding, molting, fecundity, and viability of eggs. ... -
Predation of free-living engorged female Rhipicephalus appendiculatus
Mwangi Esther N; Newson RM.; Kaaya Godwin P. (University of Nairobi.School of Biological Sciences, 1991-10)In experiments done over a period of 1 1/2 years using engorged female Rhipicephalus appendiculatus tethered in a grass plot, 42% predation was observed in long grass (40-60 cm), and 36% in short grass (6-10 cm). Deaths ... -
Prevalence and antimicrobial resistance pattern of Salmonella in animal feed produced in Namibia
Shilangale Renatus P.; Giannatale Elisabetta Di.; Chimwamurombe Percy M.; Kaaya Godwin P. (© Istituto G. Caporale 2012school of biological sciences, 2012-06)The occurrence of Salmonella is a global challenge in the public health and food production sectors. Our study investigated the prevalence, serovar and antimicrobial susceptibility of strains of Salmonella serovars isolated ... -
Prevalence of ixodid ticks and trypanosomosis in camels in southern rangelands of Ethiopia
Gebre S.; Mekonnen S.; Kaaya Godwin P.; Tekle T.; Jobre Y. (University of Nairobi.school of Biological Sciences, 2004)The prevalence of ixodid ticks and trypanosomosis of camels was studied in the semi-arid rangelands of southern Ethiopia between 1995 and 1996. A total of 24077 ticks were collected from 510 camels aged between 6 months ... -
Prospects for biological control of livestock ticks
Kaaya Godwin P.; Mwangi EN.; Ouna EA. (1996) -
Prospects for Biological Control of Livestock Ticks,Rhipicephalus appendiculatusandAmblyomma variegatum,Using the Entomogenous FungiBeauveria bassianaandMetarhizium Anisopliae
Kaaya Godwin P.; Mwangi EN.; Ouna EA. (Elsevier, 1996-01)Both Beauveria bassiana and Metarhizium anisopliaeinduced approximately 30% mortalities in adultRhipicephalus appendiculatusfeeding on rabbits whileM. anisopliaeinduced a mortality of 37% in adultAmblyomma variegatum.Both ... -
Prospects for Innovative Tick Control Methods in Africa
Kaaya Godwin P. (University of Nairobi.School of Biological Sciences, 2003-03)Ticks, and the diseases they transmit, are of great economic and medical importance worldwide, and especially in Africa, where they are considered to be the greatest animal disease problem. The four major genera of ticks ... -
Prospects of using tick parasitoids (Insecta) for tick management in Africa
Kaaya Godwin P. (University of Nairobi.School of Biological Sciences, 1997)Since the first report of tick parasitoids by Howard (1907), sevens pecies belonging to the genus Ixodiphagus have been described. Apart from a few parasitoid releases in the USA and Europe in the first third of the century, ... -
Protection of Metarhizium anisopliae conidia from ultra-violet radiation and their pathogenicity to Rhipicephalus evertsi evertsi ticks
Hedimbi M.; Kaaya Godwin P.; Singh S; Chimwamurombe PM.; Gindin G.; Glazer I.; Samish M. (University of Nairobi.School of Biological Sciences, 2008-12)Metarhizium anisopliae conidia were formulated in water or in olive oil containing 3% commercial sunscreens (Everysun or E45 Sun Block 50) and exposed to an artificial UV source for up to 5 hours. Survival of conidia after ... -
Repellence of the tickRhipicephalus appendiculatus by the grassMelinis minutiflora
Mwangi Esther N.; Essuman S.; Kaaya Godwin P.; Nyandat E.; Munyinyi D.; Kimondo MG. (Uniiversity of Nairobi.School of Biological Sciences, 1995-11)In a study to develop anti-tick pastures, the climbing behaviour ofRhipicephalus appendiculatus onMelinis minutiflora (molasses grass) was investigated. Experiments were done with cut green stems of grass, grass dried in ... -
A review of the progress made in recent years on research and understanding of immunity in insect vectors of human and animal diseases
Kaaya Godwin P. (University of Nairobi.School of Biological Sciences, 1989-12)Different modes of immune reactions of insect vectors of human and animal diseases to nematode and protozoan parasites, fungi, bacteria, viruses and to other biological materials e.g. xenografts are discussed in this paper. ... -
Seasonal variation in the prevalence of malaria and vector species in Northern Namibia
Kamwi RN.; Mfune JKE.; Kaaya Godwin P.; Jonazi JB. (©2012 Academic JournalsSchool of biological sciences, 2012-08)The prevalence of malaria parasite, Plasmodium falciparum and the abundance of malaria vector species were studied in selected areas of northern Namibia during the wet and the dry seasons. Female mosquitoes were collected ... -
Some aspects of sexual receptivity and refractory behaviour in female Glossina morsitans morsitans Westwood
Davies-Cole John OA.; Morgan HG; Chaudhury MFB; Kaaya Godwin P. (University of Nairobi.School of Biological Sciences, 1993-12)Sexual receptivity was investigated in female Ghssina morsitans morsitans Westwood after mating. The degree of insemination and duration of copulation could affect sexual receptivity when females mate with immature males. ... -
Status and recent advances in tick management
Kaaya Godwin P. (School of computing and informatics, 1992) -
Studies On The Development And Survival Of Rhiphicephalus Pulchellus And Amblyomma Gemma Under Field Condition In Ethiopia
Solomon G.; Kaaya Godwin P. (University of Nairobi.school of Biological Sciences, 2001)