School Of Biological Sciences: Recent submissions
Now showing items 21-40 of 54
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Influence of relative humidity on the growth and development of the Mite Typhlomalus aripo De Leon (Acari: Phytoseiidae): Evidence from Laboratory and Greenhouse experiments
(University of Nairobi,School of Biological Sciences, 2009)The influence of selected relative humidity regimes on the development and growth of the various immature stages from egg to adult of the predacious mite Typhlodromakus aripo de Leon was studied in the laboratory at a ... -
The dynamics of Anopheles arabiensis Patton and Anopheles funestus Giles larval densities in relation to small-scale rice cultivation practices in Western Kenya
(University of Nairobi,School of Biological Sciences, 1990)A two-year study was conducted on the densities of Anopheles arabiensis Patton and Anopheles funestus Giles larvae in two rice cultivation sites with divergent farming practices, at the Ahero Irrigation Scheme, Kenya. The ... -
Evaluation of resistance to insecticides in the mosquito larvae of Anopheles gambae Giles and its control by microbial bacterial pathogens
(University of Nairobi,School of Biological Sciences, 1989)It was found that resistance factors of mosquito larvae were near unity for dieldrin, and 2 to 3 times for Malathion at both Ahero and Mwea, and 2 times for DDT at Ahero. These low resistance factors indicated little or ... -
Estimation of the survival rates of field populations of malaria vectors in Kenya
(University of Nairobi,School of Biological Sciences, 1985)Results revealed that the average survival rates between the dry and the wet seasons mosquito populations of individual species was possible in An gambiae s. str. The survival for this species was higher during the dry ... -
Mechanisms of Sorghum resistance to the spotted stalkborer, Chilo partellus (Swinhoe) (Lepidoptera: Pyralidae)
(University of Nairobi,School of Biological Sciences, 1985)The spotted stalkborer Chilo partellus is one of the most notorious pests in Kenya of cereal crops especially maize and sorghum particularly in semi-arid areas. These studies showed that ovipositing maize stalkborers have ... -
Insect pests of Cowpeas Vigna unguiculata (L.) Walp. and studies on Cowpea yield assessment under different chemical spray regimes and minimum use of insecticides against the dominant insect pest species at Katumani Dryland Research Station, Kenya
(University of Nairobi,School of Biological Sciences, 1984)Studies to identify major insect pests attacking cowpea, Vigna unguiculata (L) Walp., in the field and to assess cowpea yields under different chemical control regimes were conducted at Katumani, Kenya during the short and ... -
Studies on Population densities and some aspects of Control of the common Maize Stalkborer Chilo partellus Swinhoe, C. Orichalcocililla Strand. and Sesamia calamistis Hmps
(University of Nairobi,School of Biological Sciences, 1981)The population densities of the three coastal maize stalkborers, Chilo partellus Swin. C. orichalcoiliella Strand. and Sesamia calamistis Hmps. were estimated during the long rains of 1979, 1980 and 1981, showed the ... -
A comparative study on development of the bean beetle Acanthoscelides obtectus (Say) in bean, cowpea, and pigeon pea seed diets
(University of Nairobi,School of Biological Sciences, 1980)Results indicated that the differences in the numbers of beetles developing in beans, pigeon peas, and cowpeas were statistically significant at the third generation level. The average life cycle in a generation was shorter ... -
Pest Management of Grain Legume Crops in Multiple Cropping Systems
(University of Nairobi,School of Biological Sciences, 1979) -
Larval habitats of the common biting midges Culicoides Latreille (Diptera: Ceratopogonidae) in Kenya
(University of Nairobi,School of Biological Sciences, 1972)The larval habitats of Culicoides species were determined by examining a total of 1476 samples collected from different ecological environments in various parts in Kenya. Immature stages were collected from suspected ... -
Flora of tropical East Africa, Rutaceae family 1–45
(School of Biological Sciences, 1982) -
Rangeland Ecophysiology
(17-07-13) -
Nairobi River Basin Project-Phase II
(2003)
