Monitoring Rhodnius neglectus (Lent, 1954) populations’ susceptibility to insecticide used in controlling actions in urban areas northwest of São Paulo state
Main Author: | |
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Publication Date: | 2022 |
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Format: | Article |
Language: | eng |
Source: | Revista da Sociedade Brasileira de Medicina Tropical |
Download full: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0037-86822022000100305 |
Summary: | ABSTRACT Background: Chagas disease (CD) is caused by the flagellate protozoan Trypanosoma cruzi and can be carried by different species of triatomines, including Rhodnius neglectus, which is wild, well distributed in Brazil, and has formed colonies in palm trees located in urban areas of municipalities in the state of São Paulo. Chemical control has been routinely used to reduce population density, but each year, there has been an increase in species dispersion and density. This study aimed to evaluate the susceptibility of insects to insecticides used in control. Methods: The reference population was collected from Araçatuba municipality, Nilce Maia. Dilutions of deltamethrin were prepared and applied to the back of the first-stage nymphs, which were biologically synchronized. The control group received pure acetone only. Mortality was assessed after 72 h. Results: The mortality rate with respect to diagnostic dose was 100%. The susceptibility profile observed for this population showed RR50 ranging from 1.76 to 3.632. Conclusions: The populations were susceptible to the insecticides tested. It is possible that the insecticide residual effect on this ecotope has decreased the lifespan, and controlling failures may be the cause of recolonization in this environment. |
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Monitoring Rhodnius neglectus (Lent, 1954) populations’ susceptibility to insecticide used in controlling actions in urban areas northwest of São Paulo stateInsecticide resistanceRhodnius neglectusDeltamethrinChagas diseaseTriatominae controlABSTRACT Background: Chagas disease (CD) is caused by the flagellate protozoan Trypanosoma cruzi and can be carried by different species of triatomines, including Rhodnius neglectus, which is wild, well distributed in Brazil, and has formed colonies in palm trees located in urban areas of municipalities in the state of São Paulo. Chemical control has been routinely used to reduce population density, but each year, there has been an increase in species dispersion and density. This study aimed to evaluate the susceptibility of insects to insecticides used in control. Methods: The reference population was collected from Araçatuba municipality, Nilce Maia. Dilutions of deltamethrin were prepared and applied to the back of the first-stage nymphs, which were biologically synchronized. The control group received pure acetone only. Mortality was assessed after 72 h. Results: The mortality rate with respect to diagnostic dose was 100%. The susceptibility profile observed for this population showed RR50 ranging from 1.76 to 3.632. Conclusions: The populations were susceptible to the insecticides tested. It is possible that the insecticide residual effect on this ecotope has decreased the lifespan, and controlling failures may be the cause of recolonization in this environment.Sociedade Brasileira de Medicina Tropical - SBMT2022-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0037-86822022000100305Revista da Sociedade Brasileira de Medicina Tropical v.55 2022reponame:Revista da Sociedade Brasileira de Medicina Tropicalinstname:Sociedade Brasileira de Medicina Tropical (SBMT)instacron:SBMT10.1590/0037-8682-0553-2021info:eu-repo/semantics/openAccessSilva,Rubens Antonio daMaldonado,Lis AdrianaPessoa,Grasielle Caldas D’ÁvilaDiotaiuti,Liléiaeng2022-02-23T00:00:00Zoai:scielo:S0037-86822022000100305Revistahttps://www.sbmt.org.br/portal/revista/ONGhttps://old.scielo.br/oai/scielo-oai.php||dalmo@rsbmt.uftm.edu.br|| rsbmt@rsbmt.uftm.edu.br1678-98490037-8682opendoar:2022-02-23T00:00Revista da Sociedade Brasileira de Medicina Tropical - Sociedade Brasileira de Medicina Tropical (SBMT)false |
dc.title.none.fl_str_mv |
Monitoring Rhodnius neglectus (Lent, 1954) populations’ susceptibility to insecticide used in controlling actions in urban areas northwest of São Paulo state |
title |
Monitoring Rhodnius neglectus (Lent, 1954) populations’ susceptibility to insecticide used in controlling actions in urban areas northwest of São Paulo state |
spellingShingle |
Monitoring Rhodnius neglectus (Lent, 1954) populations’ susceptibility to insecticide used in controlling actions in urban areas northwest of São Paulo state Silva,Rubens Antonio da Insecticide resistance Rhodnius neglectus Deltamethrin Chagas disease Triatominae control |
title_short |
Monitoring Rhodnius neglectus (Lent, 1954) populations’ susceptibility to insecticide used in controlling actions in urban areas northwest of São Paulo state |
title_full |
Monitoring Rhodnius neglectus (Lent, 1954) populations’ susceptibility to insecticide used in controlling actions in urban areas northwest of São Paulo state |
title_fullStr |
Monitoring Rhodnius neglectus (Lent, 1954) populations’ susceptibility to insecticide used in controlling actions in urban areas northwest of São Paulo state |
title_full_unstemmed |
Monitoring Rhodnius neglectus (Lent, 1954) populations’ susceptibility to insecticide used in controlling actions in urban areas northwest of São Paulo state |
title_sort |
Monitoring Rhodnius neglectus (Lent, 1954) populations’ susceptibility to insecticide used in controlling actions in urban areas northwest of São Paulo state |
author |
Silva,Rubens Antonio da |
author_facet |
Silva,Rubens Antonio da Maldonado,Lis Adriana Pessoa,Grasielle Caldas D’Ávila Diotaiuti,Liléia |
author_role |
author |
author2 |
Maldonado,Lis Adriana Pessoa,Grasielle Caldas D’Ávila Diotaiuti,Liléia |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Silva,Rubens Antonio da Maldonado,Lis Adriana Pessoa,Grasielle Caldas D’Ávila Diotaiuti,Liléia |
dc.subject.por.fl_str_mv |
Insecticide resistance Rhodnius neglectus Deltamethrin Chagas disease Triatominae control |
topic |
Insecticide resistance Rhodnius neglectus Deltamethrin Chagas disease Triatominae control |
description |
ABSTRACT Background: Chagas disease (CD) is caused by the flagellate protozoan Trypanosoma cruzi and can be carried by different species of triatomines, including Rhodnius neglectus, which is wild, well distributed in Brazil, and has formed colonies in palm trees located in urban areas of municipalities in the state of São Paulo. Chemical control has been routinely used to reduce population density, but each year, there has been an increase in species dispersion and density. This study aimed to evaluate the susceptibility of insects to insecticides used in control. Methods: The reference population was collected from Araçatuba municipality, Nilce Maia. Dilutions of deltamethrin were prepared and applied to the back of the first-stage nymphs, which were biologically synchronized. The control group received pure acetone only. Mortality was assessed after 72 h. Results: The mortality rate with respect to diagnostic dose was 100%. The susceptibility profile observed for this population showed RR50 ranging from 1.76 to 3.632. Conclusions: The populations were susceptible to the insecticides tested. It is possible that the insecticide residual effect on this ecotope has decreased the lifespan, and controlling failures may be the cause of recolonization in this environment. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0037-86822022000100305 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0037-86822022000100305 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/0037-8682-0553-2021 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Medicina Tropical - SBMT |
publisher.none.fl_str_mv |
Sociedade Brasileira de Medicina Tropical - SBMT |
dc.source.none.fl_str_mv |
Revista da Sociedade Brasileira de Medicina Tropical v.55 2022 reponame:Revista da Sociedade Brasileira de Medicina Tropical instname:Sociedade Brasileira de Medicina Tropical (SBMT) instacron:SBMT |
instname_str |
Sociedade Brasileira de Medicina Tropical (SBMT) |
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SBMT |
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SBMT |
reponame_str |
Revista da Sociedade Brasileira de Medicina Tropical |
collection |
Revista da Sociedade Brasileira de Medicina Tropical |
repository.name.fl_str_mv |
Revista da Sociedade Brasileira de Medicina Tropical - Sociedade Brasileira de Medicina Tropical (SBMT) |
repository.mail.fl_str_mv |
||dalmo@rsbmt.uftm.edu.br|| rsbmt@rsbmt.uftm.edu.br |
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1752122163020693504 |