GRATZ, N G BRACHA, P CARMICHAEL, A
Published in
Bulletin of the World Health Organization
Hut and village-scale trials with solid and liquid-type dichlorvos dispensers were carried out in 1961 in the vicinity of Lagos, Nigeria, by the WHO Insecticide Testing Unit. Bioassay results indicated that with a single application satisfactory mortalities of caged mosquitos could be obtained for a period of 12-13 weeks in mud-walled huts, whether...
MUKERJEE, N KUNDU, S GHOSH, S
Published in
International journal of Leprosy
GRATZ, N G CARMICHAEL, A
Published in
Bulletin of the World Health Organization
In the course of an insecticide-testing programme, fenthion was applied in mud-walled huts at an intended concentration of 1.5 g/m(2) in a village near Lagos, Nigeria. This paper describes the entomological results obtained. Bio-assays on Anopheles gambiae showed an effective kill (i.e., over 70%) for 7 weeks on mud surfaces, 11 weeks on wood surfa...
CARTER, R A COOK, G C
Published in
The British journal of nutrition
FITZJOHN, R A STEVENS, P A
Published in
Bulletin of the World Health Organization
As part of a WHO project for the evaluation of spraying equipment for use in malaria eradication campaigns, field trials were carried out in Northern Nigeria which confirmed the potential usefulness of rubber disc flow-regulators on compression sprayers. In these trials the operational characteristics of disc regulators were compared with those of ...
TAYLOR, A
Published in
Bulletin of the World Health Organization
The search for substitutes for chlorinated hydrocarbon insecticides has led to the trial of organophosphorus compounds. Fenthion is promising as a residual spray in malaria eradication, but information on its human toxicology is scanty. In the work reported in this paper the inhabitants of a Nigerian village have been studied during a trial of fent...
GRATZ, N G DAWSON, J A
Published in
Bulletin of the World Health Organization
In the course of a village-scale trial of fenthion, carried out in a village near Lagos, Nigeria, 40% fenthion water-dispersible powder was used at a 3.75% concentration. This was applied by Galeazzi "OM" sprayers with constant-pressure assemblies. The target concentration was 1.5 g/m(2). Filter-papers were placed on walls, ceilings and roof beams ...
DAVIES, J B
Published in
Annals of tropical medicine and parasitology
KILLICKKENDRICK, R GODFREY, D G
Published in
Annals of tropical medicine and parasitology
MACLEAN, C M
Published in
British journal of cancer
