Zobrazeno 1 - 10
of 38
pro vyhledávání: '"J. N. Raybould"'
Publikováno v:
Medical and veterinary entomology. 14(3)
Summary Phosphoglucomutase (PGM) and trehalase (Tre) isoenzymes of five species of Simulium blackflies (Diptera: Simuliidae), vectors of onchocerciasis in Venezuela, were investigated by means of a portable electrophoresis field kit. Tre differed bet
Publikováno v:
Medical and veterinary entomology. 9(1)
In a 3-year study during 1990–92, larval collections of the Simulium damnosum complex from the River Corubal system in Guinea Bissau revealed that the only sibling species present were S. sirbanum and the Konkoure form of S. konkourense, but not S.
Autor:
A I, Muro, J N, Raybould
Publikováno v:
Acta Leidensia. 59(1-2)
To investigate an apparent decline of the onchocerciasis vector Simulium woodi, in the Simulium neavei group, weekly 12-hour biting catches on man were carried out for 13 months near Amani and compared with those obtained 22 years earlier. The result
Autor:
Maria Amélia Afonso Grácio, D.H. Molyneux, M. Charalambous, A. J. Santos Grácio, A. J. Shelley, C. A. Lowry, A.T. Nhaque, J. N. Raybould, J.A.G. Forte
Publikováno v:
Parasite. 1:S6-S7
Autor:
J. N. Raybould, C. A. Kyorku
Publikováno v:
International Journal of Tropical Insect Science. 8:311-316
Egg-masses of Simulium damnosum s.l. were investigated to explain the frequent presence of undeveloped eggs in the lower layers. Natural development within egg-masses depended on whether eggs were laid (a) all at once or (b) were added to on consecut
Publikováno v:
International Journal of Tropical Insect Science. 7:31-36
The repellent ‘Simno’, which is made in Ghana from edible plant products, was tested in two forms as base-oil and a cream. Biting catches were made by bait subjects with one leg only smeared with a measured amount of ‘Simno’. The catches from
Publikováno v:
International Journal of Tropical Insect Science. 7:27-30
Nearly 8 years of intermittent treatments with temephos on the lower Volta River at Senchi Rapids, Ghana, produced no change in the susceptibility of larvae of the S. damnosum complex to temephos [Abate (R)]. In contrast, 14 months of temephos treatm
Publikováno v:
Journal of Applied Entomology. 103:496-502
A portable membrane-feeder (PMF) was compared with a multiple membrane-feeder (MMF) for blood-feeding both wild-caught and laboratory-emerged females of S. damnosum s. l. Wildcaught females fed best on the MMF with 27.9 % feeding through a thin silic
Publikováno v:
Medical and Veterinary Entomology. 1:193-199
Males of the Beffa form of Simulium soubrense Vajime and Dunbar were successfully crossed with female S.squamosum V. & D. and S.sanctipauli V. & D. Fertile eggs from both crosses were reared to larvae and, in the case of the BeifaXsquamosum cross, to
Publikováno v:
The Journal of Protozoology. 20:438-442
SYNOPSIS. Leucocytozoon neavei and Leucocytozoon caulleryi were found in guinea fowl in Tanzania and Leucocytozoon schoutedeni in chickens. The minimum time required for sporogony of L. neavei at approximately 20 C was ∼7 days in Simulium adersi an