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Studies of the biology and behaviour of Phlebotomus martini (Diptera:Phlebotomidae) from Kibauni, in Machakos District, Kenya
(University of Nairobi, 1981-12)
Phlebotomus martini, a sandfly belonging to the Synphlebotomus group, is the main vector of the fatal disease kala-azar in Kenya. The breeding sites of this species have so far remained a mystery, and immature stages have ...
Buffer pH methods for estimation of lime requirement of tropical acid soils.
(Univeristy of Nairobi, 1981)
Lime requirements (LR) of 26 acid agricultural soils were estimated using the following buffer methods: Shoemaker-McLean-Pratt single buffer (SMP-SB), SMP double buffer (SMP-DB), Mehlich buffer method for crops with high ...
Canine parvovirus infection in Kenya
(University of Nairobi,, 1981)
The clinical signs, laboratory findings, treatment and pathology of 75 cases of canine parvovirus infection in Kenya are reviewed. All breeds and ages were affected but the disease was severer in young animals. Initial ...
Dosage-mortality and time-mortality responses of the armyworm Spodoptera exempta to a nuclear polyhedrosis virus.
(University of Nairobi, 1981)
Third-instar larvae of Spodoptera exempta (Wlk.) were fed on young maize leaves treated with 20 mu l of polyhedral inclusion body (PIB) suspension of concentrations that varied from 1.6 X 102 to 1.6 X 109 PIBs/ml. Daily ...
Time-mortality response in Spodoptera exempta (Walk.) infected with heat-treated nuclear polyhedrosis virus.
(University of Nairobi, 1981)
The susceptibility of third-instar larvae of Spodoptera exempta (Wlk.) to a heat-treated nuclear polyhedrosis virus was tested in the laboratory. The polyhedral suspension was purified by differential centrifugation and ...
New perspectives on natural resource development in developing countries
(University of Nairobi, 1981)
The link between natural resources and economic development is more and more regarded as a fact today even though the whole process of development is only partially understood. The awareness has now spread to the developing ...
An ultrastructural and histochemical study of the axial musculature in the African lungfish.
(Springer-Verlag., 1981)
Red, intermediate, and white axial muscle fibres of African lungfish were studied using histochemical techniques and electron microscopy. Gross dissection revealed the presence of a small wedge of red coloured muscle along ...
Effects of weeding and row spacing on sugar cane at the Kenya coast.
(University of Nairobi, 1981)
Using the sugar cane cultivar Co 421, competition from weeds for the whole growing season was compared at three row spacings with competition for periods ranging from 15 to 120 days at the start of the season or later and ...
Rearing the American bollworm Heliothis armigera on a grass-meal diet.
(University of Nairobi, 1981)
Heliothis armigera (Hb.) was shown to be capable of growing and developing on a simple diet that was based principally on grass meal made from star grass (Cynodon dactylon). Neonatal H. armigera larvae introduced into the ...