Susceptibility of Triatoma brasiliensis from state of Ceará, Northeastern Brazil, to the pyrethroid deltamethrin

Sonoda, Ivan Vieira; Dias, Letícia Sena; Bezerra, Claudia Mendonça; Dias, João Carlos Pinto; Romanha, Álvaro J.; Diotaiuti, Liléia

doi:10.1590/s0074-02762010000300019

Cited by 6 publications

(12 citation statements)

References 16 publications

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“…Santo Orihuela et al (43) characterized the susceptibility of Argentinean (Salta and La Rioja) and Bolivian (Yacuiba) populations of T. infestans to deltamethrin, fenitrothion, fi pronil, and bendiocarb. All populations were resistant to deltamethrin (RR 50 14.09-154.4) only, without any noticeable involvement of monooxygenases in the resistance phenotype. However, some studies assessing the susceptibility of T. infestans to insecticides belonging to a different class demonstrated cross-resistance.…”

Section: History Of Triatominae Resistance To Insecticidesmentioning

confidence: 99%

“…Lardeux et al (48) characterized the susceptibility of 50 Bolivian populations of T. infestans to deltamethrin, malathion, and bendiocarb. All populations showed significant levels of resistance to deltamethrin (RR 50 6.0-491.0). However, resistance to bendiocarb (RR 50 1.8) and malathion (RR 50 1.2) was not observed.…”

Section: History Of Triatominae Resistance To Insecticidesmentioning

confidence: 99%

“…Roca-Acevedo et al (56) assessed the susceptibility of developing eggs and newly hatched nymphs in the regions of Campo Largo (Argentina) and Entre Rios (Bolivia), which were suspected of insecticide resistance. In both populations, the fi rst instar nymphs were resistant to deltamethrin (RR 50 1,108 Campo Largo and RR 50 173.0 Entre Rios). Compared with the Susceptibility Reference Lineage (SRL), the effi cacy of deltamethrin was significantly lower on the eggs.…”

Section: History Of Triatominae Resistance To Insecticidesmentioning

confidence: 99%

“…Santo-Orihuela et al (57) characterized the susceptibility of T. infestans eggs collected from wild and domestic areas of Argentina (Salta) and Bolivia (Potosi, Cochabamba, and Tarija) to deltamethrin. The RR 50 values ranged from 0.5-44.9. In resistant populations, esterase did not appear to be involved in the resistance phenotype.…”

Section: History Of Triatominae Resistance To Insecticidesmentioning

confidence: 99%

“…Studies with the NI of T. maculata obtained a Lethal Dose 50% (LD 50 ) of 0.07, 0.05, and 4.12ng a.i./treated nymphs for deltamethrin, beta-cypermethrin, and fenitrothion, respectively, a Lethal Dose 99% (LD 99 ) of of 1.08, 0.37, and 17.89, respectively. Studies with the NI of T. dimidiata obtained a LD 50 The different susceptibility profi les in different domestic units from the same localities suggest that the geographical structuring of the resistance phenotype differs between sites and within sites at the microgeographical level. These differences are caused by differences in the resistant foci profi les of T. infestans, indicating the occurrence of independent evolutionary processes.…”

Section: History Of Triatominae Resistance To Insecticidesmentioning

confidence: 99%

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History of insecticide resistance of Triatominae vectors

Pessoa

Viñas²,

Rosa

et al. 2015

Rev. Soc. Bras. Med. Trop.

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In the last 15 years, different types of Triatominae resistance to different insecticides have been reported; thus, resistance may be more widespread than known, requiring better characterization and delimitation, which was the aim of this review. This review was structured on a literature search of all articles from 1970 to 2015 in the PubMed database that contained the keywords Insecticide resistance and Triatominae. Out of 295 articles screened by title, 33 texts were selected for detailed analysis. Insecticide resistance of Triatomines is a complex phenomenon that has been primarily reported in Argentina and Bolivia, and is caused by different factors (associated or isolated). Insecticide resistance of Triatominae is a characteristic inherited in an autosomal and semi-dominant manner, and is polygenic, being present in both domestic and sylvatic populations. The toxicological profi le observed in eggs cannot be transposed to different stages of evolution. Different toxicological profi les exist at macro-and microgeographical levels. The insecticide phenotype has both reproductive and developmental costs. Different physiological mechanisms are involved in resistance. Studies of Triatomine resistance to insecticides highlight three defi ciencies in interpreting the obtained results: I) the vast diversity of methodologies, despite the existence of a single guiding protocol; II) the lack of information on the actual impact of resistance ratios in the fi eld; and III) the concept of the susceptibility reference lineage. Research on the biological and behavioral characteristics of each Triatominae species that has evolved resistance is required in relation to the environmental conditions of each region.

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Section: History Of Triatominae Resistance To Insecticidesmentioning

confidence: 99%

Section: History Of Triatominae Resistance To Insecticidesmentioning

confidence: 99%

Section: History Of Triatominae Resistance To Insecticidesmentioning

confidence: 99%

Section: History Of Triatominae Resistance To Insecticidesmentioning

confidence: 99%

Section: History Of Triatominae Resistance To Insecticidesmentioning

confidence: 99%

See 3 more Smart Citations

History of insecticide resistance of Triatominae vectors

Pessoa

Viñas²,

Rosa

et al. 2015

Rev. Soc. Bras. Med. Trop.

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Insecticide resistance in vector Chagas disease: Evolution, mechanisms and management

2015

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Ultrastructure and morphometry of eggs of Triatoma rubrovaria (Blanchard, 1843), Triatoma carcavalloi Juberg, Rocha & Lent, 1998 and Triatoma circummaculata (Stål, 1859) (Hemiptera-Reduviidae-Triatominae)

Cardozo-de-Almeida

Castro-De-Souza

Oliveira

et al. 2013

Zootaxa

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This study analyzed the body and the operculum of eggs of Triatoma rubrovaria, T. carcavalloi and T. circummaculata, considered sylvatic species that live in sympatry.Triatoma rubrovaria is currently considered the most important vector of Trypanosoma cruzi in the rural areas of the state of Rio Grande do Sul, followed by T.circummaculata. Significant differences other than morphometry have been observed in the egg structures of the three species using traditional microscopy and scanning electron microscopy. Triatoma circummaculata eggs are smaller than those of T.rubrovaria and T. carcavalloi. The average number of perforations in corionic cells in the egg body is higher for the T. rubrovaria. The average number of perforations in the operculum cell is higher in T. circummaculata. This is the first morpho-structural description of T. carcavalloi eggs. These results widen the concept of these three species and create new subsidies for the entomological monitoring in areas in which these vectors may infest human living quarters.

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Susceptibility of Triatoma brasiliensis from state of Ceará, Northeastern Brazil, to the pyrethroid deltamethrin

Cited by 6 publications

References 16 publications

History of insecticide resistance of Triatominae vectors

History of insecticide resistance of Triatominae vectors

Insecticide resistance in vector Chagas disease: Evolution, mechanisms and management

Ultrastructure and morphometry of eggs of Triatoma rubrovaria (Blanchard, 1843), Triatoma carcavalloi Juberg, Rocha & Lent, 1998 and Triatoma circummaculata (Stål, 1859) (Hemiptera-Reduviidae-Triatominae)

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Susceptibility of Triatoma brasiliensis from state of Ceará, Northeastern Brazil, to the pyrethroid deltamethrin

Cited by 6 publications

References 16 publications

History of insecticide resistance of Triatominae vectors

History of insecticide resistance of Triatominae vectors

Insecticide resistance in vector Chagas disease: Evolution, mechanisms and management

Ultrastructure and morphometry of eggs of Triatoma rubrovaria (Blanchard, 1843), Triatoma carcavalloi Juberg, Rocha &amp; Lent, 1998 and Triatoma circummaculata (Stål, 1859) (Hemiptera-Reduviidae-Triatominae)

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Ultrastructure and morphometry of eggs of Triatoma rubrovaria (Blanchard, 1843), Triatoma carcavalloi Juberg, Rocha & Lent, 1998 and Triatoma circummaculata (Stål, 1859) (Hemiptera-Reduviidae-Triatominae)