Journal articles Open Access New sources of resistance to spotted stem borer, Chilo partellus in sorghum J. Kibuka · S. Kyamanywa · M. Mgonja · P.W. Muturi +1 more The lepidopteran Chilo partellus Crambid, an introduced pest in East and southern Africa from Asia, is the most economically important stem borer species infesting cereals in Africa. Chilo partellus causes more than 40% yield loss in sorgh… RUF-35624 2012 CC BY 4.0 7 Oct 2015
Theses & Dissertations Open Access Species abundance, composition and colonization behaviour of Malaria vectors in a semi-arid ecosystem of Baringo District, Kenya Okello Samuel Arum Malaria is one of the public health problems facing people in many parts of Kenya including semi-arid areas. It is caused by an infectious bite of female Anopheles mosquitoes. To effectively implement malaria control program, the knowledge… RUF-35509 2011 CC BY 4.0 29 Sep 2015
Theses & Dissertations Open Access Survival analysis and generalized estimating equations for repeated measures in mosquito dose-response Gabriel Otieno Okello Dose-response studies in arthropod research usually involve observing and collecting successive information at different times on the same group of organisms (insects) exposed to different concentrations of stimulus such as botanical extra… RUF-35355 2013 CC BY 4.0 21 Sep 2015
Working Document Series Open Access Cross-mating and oviposition behaviour between strains of Cotesia sesamiae cameron (hymenoptera: braconidae) from Kitale, Mombasa and Mount Kenya & Fritz Schulthess Bruno Le Ru · E.W. Kairu · J.N. Mugambi Stemborers cause 50% yield losses in cereal crops. In Kenya Cotesia sesamiae is one of the parasitoids that has been studied in regard to the control of stemborer pests. In this study the reproductive compatibility of three populations of … RUF-35125 2010 CC BY 4.0 16 Sep 2015
Working Document Series Open Access Hatchery system evaluation and adaptation for the production of Oreochromis karongae (Trewavas, 1941) fingerlings D. Kassam · J.S. Likongwe · George Matiya · J.S. Valeta In Malawi development of aquaculture is constrained by, among other factors, lack of good quality seed. Through Research into Use (RiU) the Government of Malawi has mandated a few fish hatcheries, of which the most prominent is the Commerc… RUF-35091 2010 CC BY 4.0 16 Sep 2015
Working Document Series Open Access Some aspects of reproductive biology of Oreochromis andersonii, Oreochromis machrochir and Oreochromis niloticus in ponds N. Chimba · C. Kancheya · Alexander Shula Kefi · K.G. Kubiriza +1 more The study on the reproductive biology of Oreochromis macrochir, O. niloticus and O. andersonii was carried out for sixty nine days in hapas. There were no significant (P > 0.05) differences in the number and weight of spawn incubated in… RUF-35035 2010 CC BY 4.0 15 Sep 2015
Working Document Series Open Access Assessment of groundnut yield loss due to the groundnut leaf miner, Aproaerema modicella infestation in Mozambique M. Botao · D. Cugala · L. Santos · A. Sidumo +1 more The groundnut leaf miner, Aproaerema modicella Deventer (Lepidoptera: Gelechiidae), is an invasive alien Asian species in Mozambique. A. modicella was reported for the first time in 1998 in Uganda. In Mozambique, Groundnut leaf miner was f… RUF-34364 2010 CC BY 4.0 20 Aug 2015
Working Document Series Open Access Diversity and colonization of permanent and semi-permanent breeding habitats by Anopheles mosquitoes in a semi-arid ecosystem of Baringo district in Kenya S.O. Arum · E.D. Kokwaro · F. Mulwa Diversity, occurrence and utilization of mosquito breeding habitats is an essential component of vector ecology and important in designing and implementation of vector management programs. A one year larval survey was conducted to determin… RUF-34341 2010 CC BY 4.0 20 Aug 2015
Working Document Series Open Access Temperature-dependent Egg development rates and Hatching period of Chambo, Oreochromis Karongae (Pisces: Cichlidae) D. Kassam · J.S. Likongwe · J.S. Valeta A study was conducted to assess the effect of temperature on egg development in an attempt to improve hatching success and fry production in Oreochromis karongae. Temperaturedependent development rates and hatching period for fertilized eg… RUF-32216 2012 CC BY 4.0 14 May 2014
Working Document Series Open Access Susceptibility of some Varieties and Breeding lines of Tomato to Liriomyza spp. infestation in Central Sudan Dominique Bordat · M.A. Elameen Eltoum · M. Elamin Elamin · E.E. Faiza Salah +1 more Tomato crop in the central Sudan is liable to heavy infestation by the leaf miners, Liriomyza spp. Field experiments indicated significant differences in varietal susceptibility of varieties and tomato breeding lines to Liriomyza spp. The … RUF-31902 2012 CC BY 4.0 12 May 2014
Theses & Dissertations Open Access Multinomial Regression in Insect Choice Studies: A Case of Leaf Miner Parasitoids’ Choices Kevin Kanyuira Gikonyo Researchers are often confronted with multinomial data in insect choice studies. Common choice models available to researchers for analysis of multinomial data include multinomial logit (MNL) and multinomial probit model (MNP). MNL relies … RUF-31727 2013 CC BY 4.0 7 Apr 2014
Theses & Dissertations Open Access Developmental Changes in the Activity of Major Intestinal Brush Border Enzymes in the Wild Juvenile Nile Perch, Lates niloticus (Linnaeus, 1758) Charles Drago Kato The Nile perch, Lates niloticus is a carnivorous fish and a potential candidate for aquaculture. The ability of fish to utilize ingested nutrients depends on availability of appropriate enzymes along the intestinal tract and can be used in… RUF-31688 2011 CC BY 4.0 10 Mar 2014
