1981
DOI: 10.1093/jmedent/18.2.145
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Evaluation of Temephos as a Larvicide against Simulium Ochraceum (Diptera: Simuliidae) in Guatemala1

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1983
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Cited by 9 publications
(4 citation statements)
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“…In the watershed investigated, the critical level of 8000 Sim ulium per person-year (Suzuki, 1983) was exceeded during each of the 5 years prior to starting the larval control. Takaoka et al (1981), Ochoa (1982), and Suzuki (1983) found 0.064% , 0.33% , and 0.099% of¯ies from the study area with infective larvae of O. volvulus, respectively. During control operations, however, the mean density of the vector decreased to zero in about 80% of the collection sites and was less than the critical threshold for transmission (i.e.…”
Section: Discussionmentioning
confidence: 81%
“…In the watershed investigated, the critical level of 8000 Sim ulium per person-year (Suzuki, 1983) was exceeded during each of the 5 years prior to starting the larval control. Takaoka et al (1981), Ochoa (1982), and Suzuki (1983) found 0.064% , 0.33% , and 0.099% of¯ies from the study area with infective larvae of O. volvulus, respectively. During control operations, however, the mean density of the vector decreased to zero in about 80% of the collection sites and was less than the critical threshold for transmission (i.e.…”
Section: Discussionmentioning
confidence: 81%
“…The main technique has thus been the rapid release of emulsifiable concentrates (Lee et al, 1975). For the very different conditions of attempting to control 5. ochraceum, an inhabitant of tiny streams in montane forest in Central America, slow release blocks were developed as already discussed (Takaoka et al, 1981;Tabaru et al, 1982). Application techniques must be developed for each special circumstance.…”
Section: Dosage Rates and Application Methodsmentioning
confidence: 99%
“…Pieces of this solid material (2 g or more) are placed in the water inside a wire-mesh basket. The number of 2-g brickettes required to maintain a concentration of 01 mg/litre for 60 min is added to each basket (Takaoka et al, 1981). In this interesting study, all water courses discharging between 0-1 and 50 litres/s were considered to be potential breeding sites (Nakamura et al, 1981).…”
Section: Slow-release Formulationsmentioning
confidence: 99%
“…This control trial began in 1979 in a small valley of Lavaderos, then gradually expanded to other neighboring valleys, with a final coverage of about 90 km 2 in January 1984. An outline of the control operation and the results of entomological evaluations have already been reported [ 41 , 42 ]. Details of the entire program were reported by Yamagata et al [ 43 ] and are excerpted below.…”
Section: Area Vector-control Trialmentioning
confidence: 99%