Browsing Faculty of Science & Technology (FST) by Author "Irungu, LW"
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17. Evaluation of Immune Associated Cells in Lesions of L. Major Infected Vervet Monkeys (Cercopithecus aethiops)
Ozwara, HS; Olobo, JO; Irungu, LW (1995)Vervet monkeys were used to characterize immune associated cell types recruited into lesion sites as a result of experimental primary and secondary infections with Leishmania major. A heavy cellular infiltration consisting ... -
Analysis of genetic variability in Anopheles arabiensis and Anopheles gambiae using microsatellite loci
Kamau, L; Mukabana, WR; Hawley, WA; Lehmann, T; Irungu, LW; Orago, AA; Collins, FH (1999)We analysed genetic variability in Anopheles arabiensis and Anopheles gambiae populations using microsatellite loci to determine whether the Rift Valley restricts the flow of genes. Deviations from Hardy-Weinberg expectations ... -
Animal model for feeding Kenyan wild-caught phebotomine sandflies (Diptera: Phlebotomidae)
Mutinga, MJ; Kaddu, J.B; Irungu, LW (School of Biological Sciences, 1981) -
Biology of the coconut bug Pseudotheraptus wayi on French Beans
Egonyu, JP; Ekesi, S; Kabaru, J; Irungu, LW (School of Biological Sciences, 1999)The coconut bug, Pseudotheraptus wayi Brown (Heteroptera: Coreidae), is a major pest of a wide range of economically important crops in Eastern and Southern Africa. The suitability of French beans, Phaseolus vulgaris L. ... -
Characterization of the factors influencing the differential productivity of Anopheles gambiae at larval habitats in Kisian village, western Kenya.
Irungu, LW (School of Biological Sciences, 2011) -
The chorionic sculpturing of eggs of some Kenyan Phlebotomine sandflies
Irungu, LW; Mutinga, MJ; Kokwaro, ED (1986)Studies of outer chorionic sculpturing of eggs of four species of sandflies were carried out by the use of scanning electron microscope. Two species, P. martini and S. garnhami, which utilize similar resting sites, termite ... -
Comparative abundances of phlebotomine sandflies (Diptera : Psychodidae) in termite hills and animal burrows and their peaks of nocturnal activities in Baringo District, Kenya
Ngumbi, PM; Irungu, LW; Robert, LL; Gordon, DM (School of Biological Sciences, 1995) -
Comparative field evaluation of Mbita trap, CDC light trap and the Human Landing Catch for sampling of malaria vectors.
Mathenge, EM; Omweri, GO; Irungu, LW; Ndegwa, PN; Welczak, E; Smith, TA; Killeen, GF; Knols, BJG (School of Biological Sciences, 2004) -
Comparative field evaluation of the Mbita trap, the Centers for Disease Control light trap, and the human landing catch for sampling of malaria vectors in western Kenya
Mathenge, EM; Omweri, GO; Irungu, LW; Ndegwa, PN.; Walczak, E; Smith, TA; Killeen, GF; Knols, BG (2004)The mosquito sampling efficiency of a new bed net trap (the Mbita trap) was compared with that of the Centers for Disease Control miniature light trap (hung adjacent to an occupied bed net) and the human landing catch in ... -
Description of pre-adult stages of the coconut bug, Pseudotherapthus wayi
Egonyu, JP; Kabaru, J; Irungu, LW; Haas, F (School of Biological Sciences, 1999)The coconut bug, Pseudotheraptus wayi Brown (Hemiptera: Heteroptera: Coreidae), is a serious pest of a number of crops in Eastern and Southern Africa. Both adults and nymphal stages are destructive because they suck sap ... -
Development of an exposure-free bednet trap for sampling Afrotropical malaria vectors
Mathenge, EM; Killeen, GF; Oulo, DO; Irungu, LW; Ndegwa PN.; Knols, BG (2002)An exposure-free bednet trap (the 'Mbita trap') for sampling of Afrotropical malaria vectors was developed during preliminary studies of mosquito behaviour around human-occupied bednets. Its mosquito sampling efficiency ... -
Dry season ecology of Anopheles gambiae complex mosquitoes at larval habitats in two traditionally semi-arid villages in Baringo, Kenya
Mala, AO; Irungu, LW; Shililu, JI; Muturi, EJ; Mbogo, CC; Njagi, JK; Githure, JI (2/28/2011)Background: Pre-adult stages of malaria vectors in semi-arid areas are confronted with highly variable and challenging climatic conditions. The objective of this study was to determine which larval habitat types are ... -
Effect of permethrin-impregnated nets on exiting behavior, blood feeding success, and time of feeding of malaria mosquitoes (Diptera: Culicidae) in western Kenya
Mathenge, EM; Gimnig, JE; Kolczak, M; Ombok, M; Irungu, LW; Hawleyu, WA (School of Biological Sciences, 2001)The impact of permethrin-treated bednets on the feeding and house entering/exiting behavior of malaria vectors was assessed in two studies in western Kenya. In one study, matched pairs of houses were allocated randomly to ... -
Effect of puparia incubation temperature: increased infection rates of Trypanosoma congolense in Glossina morsitans centralis, G. fuscipes fuscipes and G. brevipalpis
Ndegwa Paul N; Irungu, LW; Moloo, S K (School of Biological Sciences, 1992)Puparia of Glossina morsitans centralis (Machado), G.fuscipes fuscipes (Newstead) and G.brevipalpis (Newstead) were incubated at 25 +/- 1 degrees C, 28 +/- 1:25 +/- 1 degrees C, day:night or 29 +/- 1 degrees C throughout ... -
Effects of a biologically active fraction from Melia volkensii on Culex quinquefasciatus
Irungu, LW; Mwangi, RW (1995)A chromatographically enriched fraction designated Fraction B from dry fruits of the plant Melia volkensii (family Meliaceae) was evaluated with the objective of determining its toxic and growth inhibiting effects on the ... -
Electrophysiological and Behavioral responses of the Coconut bug, Pseudotheraptus wayi to cashew and conspecific volatiles
Egonyu, JP; Ekesi, S; Kabaru, J; Irungu, LW; Torto, B (School of Biological Sciences, 1999) -
Factors influencing differential larval habitat productivity of Anopheles gambiae complex mosquitoes in a western Kenyan village.
Mala, AO; Irungu, LW (School of Biological Sciences, 2011-03)BACKGROUND & OBJECTIVES: The study was undertaken to characterize factors influencing differential productivity of Anopheles gambiae complex mosquitoes at larval habitats in a rural village in western Kenya. METHODS: ... -
Factors influencing the development of Brugia pahangi microfilariae on Culex quinquefasciatus and Aedes aegypti mosquitoes
Irungu, LW (1989)Culex quinquefasciatus (Wiedemann) mosquitoes, which are refractory to Brugia pahangi (Buckley and Edeson) microfilariae, were fed simultaneously on Wuchereria bancrofti (Cobbold) and B. pahangi microfilariae. A selected ... -
Gonotrophic cycle duration, fecundity and mating behavior of Anopheles gambiae complex mosquitoes in a dryland ecosystem in Baringo, Kenya
Mala, AO; Irungu, LW; Mitaki, EK; Shililu, JI; Mbogo, CM; Njagi, JK; Githure, JI (2014)An entomological longitudinal survey was carried out over a 22 month period in two semi-arid villages in Baringo District in Kenya to study how adult malaria vectors survive under semi-arid conditions and during extended ... -
Heliminthiasis in Free-Ranging Indigenous Poultry in Kenya
Okech, BA; Irungu, LW; Cooper, J.E (School of Biological Sciences, 2006)