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Seasonal variation in the prevalence of malaria and vector species in Northern Namibia
(©2012 Academic Journals, 2012-08)
The prevalence of malaria parasite, Plasmodium falciparum and the abundance of malaria vector species were studied in selected areas of northern Namibia during the wet and the dry seasons. Female mosquitoes were collected ...
Ticks and tick-borne parasites associated with indigenous cattle in Didtuyura Ranch, southern Ethiopia
(University of Nairobi., 1998)
Tick populations were monitored between October 1991 and September 1992 at monthly intervals on 10 Boran (Bos indicus) heifers at Didtuyura ranch, Yabelo district, Ethiopia. Twelve different tick species in four genera ...
Prospects for Innovative Tick Control Methods in Africa
(University of Nairobi., 2003-03)
Ticks, and the diseases they transmit, are of great economic and medical importance worldwide, and especially in Africa, where they are considered to be the greatest animal disease problem. The four major genera of ticks ...
Drop-off patterns for engorged adult females, nymphs and larvae of Rhipicephalus appendiculatus
(University of Nairobi., 1991-12)
A drop off rhythm of engorged Rhipicephalus appendiculatus Neumann was demonstrated for females and engorged nymphs, but not for larvae. Seventy per cent of 1279 engorged R. appendiculatus females dropped off the animals ...
Cuticular lesions: a non-infectious integumental disease of Glossina species
(University of Nairobi., 1981-12)
Purified suspensions of macerated cuticular lesions from the insectary-reared tsetse Glossina morsitans morsitans were applied on laboratory-reared newly emerged teneral tsetse by three pathways: topical application on the ...
Experimental infections of the tick Rhipicephalus appendiculatus with entomopathogenic fungi, Beauveria bassiana and Metarhizium anisopliae, and natural infections of some ticks with bacteria and fungi
(University of Nairobi., 1995-09)
Two strains of the entomogenous fungus, Beauveria bassiana, were found to be pathogenic to all stages of the tick Rhipicephalus appendiculatus in the laboratory. A mortality of up to 73 percent of unfed adults was recorded, ...
Some aspects of sexual receptivity and refractory behaviour in female Glossina morsitans morsitans Westwood
(University of Nairobi., 1993-12)
Sexual receptivity was investigated in female Ghssina morsitans morsitans Westwood after mating. The degree of insemination and duration of copulation could affect sexual receptivity when females mate with immature males. ...
Mortalities induced by entomopathogenic fungus Metarhizium anisopliae to different ticks of economic importance using two formulations
(2011)
The objective of this study was to compare the infe
ctivity of
Metarhizium anisopliae
at a
concentration of 1 × 10
8
conidia/ml to developmental stages of
Amblyomma variegatum,
Rhipicephalus appendiculatus
and
...
Prospects for Biological Control of Livestock Ticks,Rhipicephalus appendiculatusandAmblyomma variegatum,Using the Entomogenous FungiBeauveria bassianaandMetarhizium Anisopliae
(Elsevier, 1996-01)
Both Beauveria bassiana and Metarhizium anisopliaeinduced approximately 30% mortalities in adultRhipicephalus appendiculatusfeeding on rabbits whileM. anisopliaeinduced a mortality of 37% in adultAmblyomma variegatum.Both ...
Further observations on survival and fertility of Glossina morsitans morsitans maintained on immunized rabbits
(University of Nairobi., 1984)
A significant increase in mortality was observed in Glossina morsitans morsitans maintained for approx. 45 days on rabbits immunized with tsetse or bovinetrypsin. Tsetse and bovine trypsin were observed to cross-react when ...