Journal Articles: Recent submissions

Now showing items 201-220 of 228

Efficacy of Vectobac DT and Culinexcombi Against Mosquito Larvae in Unused Swimming Pools in Malindi, Kenya

Kahindi, Samuel C.; Midega, Janet T.; Mwangangi, Joseph M.; Kibe, Lydiah W.; Nzovu, Joseph; Luethy, Peter; Githure, John; Mbogo, Charles M. (The American Mosquito Control Association, 2008)

The efficacy and persistence of 2 bacterial larvicides, Vectobac-DT (Bacillus thuringiensis israelensis [Bti]) and CulinexCombi (Bti and Bacillus sphaericus [Bs]), were tested against Anopheles gambiae and Culex quinquefasciatus ...
Anti-predator Crèches and Aggregations of Ant-mimicking Jumping Spiders (Araneae: Salticidae)

Nelson, Ximena J.; Jackson, Robert R. (The Linnean Society of London, 2008)

Myrmarachne assimilis, an ant-like jumping spider (Araneae, Salticidae) from the Philippines and a Batesian mimic of Oecophylla smaragdina, the Asian weaver ant, aggregates on leaves in the company of its model. All stages ...
Distribution of Mosquito Larvae Within the Paddy and its Implication in Larvicidal Application in Mwea Rice Irrigation Scheme, Central Kenya

Mwangangi, Joseph M; Muturi, Ephantus J.; Shililu, Josephat I.; Jacob, Benjamin G.; Kabiru, Ephantus W.; Mbogo, Charles M.; Githure, John I; Novak, Robert J (The American Mosquito Control Association, 2008)

Distribution of mosquito larvae in inundated rice fields is poorly known despite its profound implications in implementation of vector control programs. Based on oviposition behavior of gravid females and biotic and abiotic ...
Contribution of Different Aquatic Habitats to Adult Anopheles Arabiensis and Culex Quinquefasciatus (Diptera: Culicidae) Production in a Rice Agroecosystem in Mwea, Kenya

Mwangangi, Joseph M; Muturi, Ephantus J.; Shililu, Josephat; Muriu, Simon M.; Githure, John; Novak, Robert J (Society for Vector Ecology, 2008)

Studies were conducted to determine the contribution of diverse larval habitats to adult Anopheles arabiensis Patton and Culex quinquefasciatus Say production in a rice land agro-ecosystem in Mwea, Kenya. Two sizes of cages ...
Diversity of Riceland Mosquitoes and Factors Affecting Their Occurrence and Distribution in Mwea, Kenya

Muturi, Ephantus J.; Shililu, Josephat I.; Jacob, Benjamin G.; Mwangangi, Joseph M; Mbogo, Charles M.; Githure, John I; Novak, Robert J (The American Mosquito Control Association, 2008)

Knowledge of mosquito species diversity, occurrence, and distribution is an essential component of vector ecology and a guiding principle to formulation and implementation of integrated vector management programs. A 12-month ...
Hydrological modeling of geophysical parameters of arboviral and protozoan disease vectors in Internally Displaced People camps in Gulu, Uganda

Benjamin, G Jacob; Muturi, Ephantus J; Caamano, Erick X; Gunter, James T; Mpanga, Enoch; Ayine, Robert; Okelloonen, Joseph; Nyeko, Jack Pen-Mogi; Shililu, Josephat I; Githure, John I; Regens, James L; Novak, Robert J; Kakoma, Ibulaimu (International Journal of Health Geographics, 2008)

Background: The aim of this study was to determine if remotely sensed data and Digital Elevation Model (DEM) can test relationships between Culex quinquefasciatus and Anopheles gambiae s.l. larval habitats and environmental ...
Environmental Factors Associated with the Distribution of Anopheles Arabiensis and Culex Quinquefasciatus in a rice Agro-ecosystem in Mwea, Kenya

Muturi, Ephantus J.; Mwangangi, Joseph; Shililu, Josephat; Jacob, Benjamin G.; Mbogo, Charles; Githure, John; Novak, Robert J (Society for Vector Ecology, 2008)

Studies were conducted between May and June, 2006 to investigate the environmental factors affecting the distribution of An. arabiensis Patton and Culex quinquefasciatus Say in Mwea, Kenya. The sampling unit comprised all ...
Blood-Feeding Patterns of Culex Quinquefasciatus and other Culicines and Implications for Disease Transmission in Mwea Rice Scheme, Kenya

Muturi, Ephantus J.; Muriu, Simon; Shililu, Josephat; Mwangangi, Joseph M; Jacob, Benjamin G.; Mbogo, Charles; Githure, John; Novak, Robert J (Springer-Verlag, 2008)

Studies were conducted in Mwea Rice Scheme, Kenya during the period April 2005 and January 2007 to determine the host-feeding pattern of culicine mosquitoes. Mosquitoes were collected indoors and outdoors and tested for ...
Effect of Rice Cultivation on Malaria Transmission in Central Kenya

Muturi, Ephantus J.; Muriu, Simon; Shililu, Josephat; Mwangangi, Joseph; Jacob, Benjamin G.; Mbogo, Charles; Githure, John; Novak, Robert J (The American Society of Tropical Medicine and Hygiene, 2008)

A 12-month field study was conducted between April 2004 and March 2005 to determine the association between irrigated rice cultivation and malaria transmission in Mwea, Kenya. Adult mosquitoes were collected indoors twice ...
Host Choice and Multiple Blood Feeding Behaviour of Malaria Vectors and Other Anophelines in Mwea Scheme, Kenya

Muriu, Simon M.; Muturi, Ephantus J.; Shililu, Josephat I.; Mbogo, Charles M.; Mwangangi, Joseph M; Jacob, Benjamin G.; Irungu, Lucy W.; Mukabana, Richard W.; Githure, John I; Novak, Robert J (BioMed Central, 2008)

Background: Studies were conducted between April 2004 and February 2006 to determine the bloodfeeding pattern of Anopheles mosquitoes in Mwea Kenya. Methods: Samples were collected indoors by pyrethrum spay catch and ...
Growth disruption activity of polar extracts from Kotschya uguenensis (Fabaceae) against Anopheles gambiae s.s. (Diptera: Culicidae) larvae

Ester, Innocent; Cosam, C. Joseph; Nicholas, K. Gikonyo; Mayunga, H.H. Nkunya; Ahmed, Hassanali (Institute of Traditional Medicine,Muhimbili University of Health and Allied Sciences,ICIPE, 2008)

Studies on the larvicidal properties of extracts and fractions from Kotschya uguenensis Verdc. were done by long-term exposure of Anopheles gambiae s.s. larvae. The cumulative mean percentage mortalities and deformities ...
Heavy Metals in Mosquito Larval Habitats in Urban Kisumu and Malindi, Kenya, and their Impact

Mireji, Paul O.; Keating, Joseph; Hassanali, Ahmed; Mbogo, Charles M.; Nyambaka, Hudson; Kahindi, Samuel; Beier, John C. (NIH Public Access, 2008)

Concentrations and distribution of cadmium, chromium, copper, iron, lead, manganese and zinc in mosquito larval habitats in urban Kisumu and Malindi, Kenya and their effect on the presence of Anopheles gambiae, Aedes ...
Mosquito larvicidal constituents from Lantana viburnoides sp viburnoides var kisi (A. rich) Verdc (Verbenaceae)

Ester, Innocent; Mainen, J. Moshi; Cosam, C. Joseph; Nicholus, K. Gikonyo; Mayunga, H.H. Nkunya; Ahmed, Hassanali (Institute of Traditional Medicine, Muhimbili University of Health and Allied Sciences,ICIPE, 2008)

Background & objectives: Lantana viburnoides sp viburnoides var kisi is used in Tanzania ethnobotanically to repel mosquitoes as well as in traditional medicine for stomach ache relief. Bioassay-guided fractionation and ...
Molecular diagnosis of malaria in the field: development of a novel 1-step nucleic acid lateral flow immunoassay for the detection of all 4 human Plasmodium spp. and its evaluation in Mbita, Kenya

Mens, Petra F.; Amerongen, Aart van; Sawa, Patrick; Kager, Piet A.; Schallig, Henk DFH (Elsevier, 2008)

Microscopy is frequently used for malaria diagnosis, but at low parasitemia, it becomes less sensitive and time consuming. Molecular tools allow for specific/sensitive diagnosis, but current formats, such as polymerase ...
A Randomized Trial to Monitor the Efficacy and Effectiveness by QT-NASBA of Artemether-lumefantrine versus Dihydroartemisinin-piperaquine for Treatment and Transmission Control of Uncomplicated Plasmodium Falciparum Malaria in Western Kenya

Mens, Petra F; Sawa, Patrick; Amsterdam, Sandra M van; Versteeg, Inge; Omar, Sabah A; Schallig, Henk DFH; Kager, Piet A (BioMed Central, 2008)

Background: Many countries have implemented artemisinin-based combination therapy (ACT) for the first-line treatment of malaria. Although many studies have been performed on efficacy and tolerability of the combination ...
The Role of Unused Swimming Pools as a Habitat for Anopheles Immature Stages in Urban Malindi, Kenya

Daniel, E. Impoinvil; Charles, M. Mbogo,; Joseph, Keating; John, C. Beier (The American Mosquito Control Association, 2008)

ABSTRACT. We conducted larval surveys in habitats located in urban Malindi, Kenya, in 2005 and 2006 with the goal of determining the productivity of unused swimming pools in relation to other habitats. Of the 250 habitats ...
Abundance of immature Anopheles and culicines (Diptera: Culicidae) in different water body types in the urban environment of Malindi, Kenya

Daniel, E. Impoinvil; Joseph, Keating; Charles, M. Mbogo,; Matthew, D. Potts; Rinku, Roy Chowdhury; John, C. Beier (Society for Vector Ecology, 2008)

In this study we 1) describe the abundance of Anopheles and culicine immatures in different water body types in urban Malindi, Kenya, 2) compare Anopheles immature density in relation to culicine immature density, and 3) ...
The meaning of predatory specialization as illustrated by Aelurillus m-nigrum, an ant-eating jumping spider (Araneae: Salticidae) from Azerbaijan

Elchin, F. Huseynov; Robert, R. Jackson; Fiona, R. Cross (School of Biological Sciences, University of Canterbury/International Centre of Insect Physiology and Ecology, 2008)

The distinctions between a predator’s diet, its prey-choice behaviour and its preference are illustrated in a study of Aelurillus m-nigrum Kulczyn’ski, a salticid spider from Azerbaijan. The natural diet of A. m-nigrum ...
Abandoning small-scale fish farming in western Kenya leads to higher malaria vector abundance

Annabel, F.V. Howard; Francois, X. Omlin (2008)

Fishponds become abandoned due to lack of access to both young fish and technical support and faster economic returns from other activities.Certain conditions found in abandoned fishponds, such as absence of fish and ...
Monooxygenase Levels and Knockdown Resistance (kdr) Allele Frequencies in Anopheles Gambiae and Anopheles Arabiensis in Kenya

Hong, Chen; Andrew, K. Githeko,; John I., Githure; James, Mutunga; Guofa, Zhou; Guiyun, Yan (Entomological Society of America, 2008)

ABSTRACT Pyrethroid-treated bed-nets and indoor spray are important components of malaria control strategies in Kenya. Information on resistance to pyrethroid insecticides in Anopheles gambiae and An. arabiensis populations ...

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