Publications

TitleAbstractYear
Filter
PMID
Filter
the use of bacterial larvicides in mosquito and black fly control programmes in brazil.bacillus spp. based larvicides are increasingly replacing, with numerous advantages, chemical insecticides in programmes for controlling black fly and mosquito populations. brazil was among the pioneers in adopting bacillus thuringiensis israelensis (b.t.i) to control black flies. however, the major current mosquito control programme in brazil, the programme for eradication of aedes aegypti launched in 1997, only recently decided to replace temephos by b.t.i based larvicides, in the state of rio ...200011142716
identification of entomopathogenic bacillus isolated from simulium (diptera, simuliidae) larvae and adults.entomopathogenic bacteria isolated from simulium larvae and adults from breeding sites in the states of são paulo and rio de janeiro, brazil, were identified as 18 strains of bacillus thuringiensis and one of b. sphaericus. most of these strains were serotyped according to their flagellar antigens. however, nine of the b. thuringiensis samples, could not be serotyped and were designated as "autoagglutinating"; they were also shown to be toxic in preliminary tests against aedes aegypti larvae. ad ...200111685272
evaluation of the impact of bacillus thuringiensis serovar israelensis and temephos, used for the control of simulium (chirostilbia) pertinax kollar, 1832 (diptera, simuliidae) on the associated entomofauna, paraty, state of rio de janeiro, brazil.the study was set up to evaluate the impact of two commercial larvicide formulations, bacillus thuringiensis serovar israelensis base (bti) at 15 ppm/1 min and temephos at 0.03 ppm of active ingredient, used to control simulium pertinax populations, on associated non-target entomofauna occupying the same breeding sites. the experiments were carried out on the pedra branca and muricana rivers, on the slopes of serra do mar massif, municipality of paraty, state of rio de janeiro, brazil. bti was a ...200312973540
persistence of vectobac wdg and metoprag s-2g against aedes aegypti larvae using a semi-field bioassay in rio de janeiro, brazil.persistence of bacillus thuringiensis var. israelensis (vectobac wdg) and methoprene (metoprag s-2g) was evaluated against aedes aegypti late third instar larvae of the rockefeller strain in a semi-field bioassay. tests were performed in rio de janeiro, using containers made of plastic, iron, concrete and asbestos, placed in a shaded area. the formulations used were 0.2 g of vectobac-wdg and 1 g of metoprag s-2g per 100 liters of water in house storage containers. vectobac wdg was tested twice, ...200515729468
residual effect of two bacillus thuringiensis var. israelensis products assayed against aedes aegypti (diptera: culicidae) in laboratory and outdoors at rio de janeiro, brazil.resistance of the dengue vector to temephos stimulated its substitution for bacillus thuringiensis var. israelensis (bti) since 2001 in brazil. the persistence of the two bti formulations employed at that time by the health ministry, vectobac g and aquabac g, was assayed under laboratory and outdoor conditions. both formulations were tested at 0.2 g/10 liters of water, the same concentration applied in the field for vector control. the tests were done against ae. aegypti third instar larvae (roc ...200516021284
molecular characterization and risk assessment of bacillus cereus sensu lato isolated from ultrahigh-temperature and pasteurized milk marketed in rio de janeiro, brazil.the presence of bacillus cereus in milk is a major concern in the dairy industry. in this study 27 bacillus cereus sensu lato isolates from pasteurized and ultrahigh-temperature (uht) milk (24 whole uht and 4 pasteurized samples) collected at supermarket chains in rio de janeiro, brazil, were evaluated to assess the potential risk for food poisoning. toxigenic and virulence profiles were defined by gene-specific pcr. affiliation to phylogenetic groups was assigned by panc sequencing. microbiolog ...201728556679
Displaying items 1 - 6 of 6