Large indoor cage study of the suppression of stable Aedes aegypti populations by the release of thiotepa-sterilised males
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Memórias do Instituto Oswaldo Cruz |
Texto Completo: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762014000300365 |
Resumo: | The sterile insect technique (SIT) is a promising pest control method in terms of efficacy and environmental compatibility. In this study, we determined the efficacy of thiotepa-sterilised males in reducing the target Aedes aegypti populations. Treated male pupae were released weekly into large laboratory cages at a constant ratio of either 5:1 or 2:1 sterile-to-fertile males. A two-to-one release ratio reduced the hatch rate of eggs laid in the cage by approximately a third and reduced the adult catch rate by approximately a quarter, but a 5:1 release drove the population to elimination after 15 weeks of release. These results indicate that thiotepa exposure is an effective means of sterilising Ae. aegypti and males thus treated are able to reduce the reproductive capacity of a stable population under laboratory conditions. Further testing of the method in semi-field enclosures is required to evaluate the mating competitiveness of sterile males when exposed to natural environmental conditions. If proven effective, SIT using thiotepa-sterilised males may be incorporated into an integrated programme of vector control to combat dengue in Cuba. |
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Memórias do Instituto Oswaldo Cruz |
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Large indoor cage study of the suppression of stable Aedes aegypti populations by the release of thiotepa-sterilised malesAedes aegyptichemosterilisationthiotepasterile insect techniqueThe sterile insect technique (SIT) is a promising pest control method in terms of efficacy and environmental compatibility. In this study, we determined the efficacy of thiotepa-sterilised males in reducing the target Aedes aegypti populations. Treated male pupae were released weekly into large laboratory cages at a constant ratio of either 5:1 or 2:1 sterile-to-fertile males. A two-to-one release ratio reduced the hatch rate of eggs laid in the cage by approximately a third and reduced the adult catch rate by approximately a quarter, but a 5:1 release drove the population to elimination after 15 weeks of release. These results indicate that thiotepa exposure is an effective means of sterilising Ae. aegypti and males thus treated are able to reduce the reproductive capacity of a stable population under laboratory conditions. Further testing of the method in semi-field enclosures is required to evaluate the mating competitiveness of sterile males when exposed to natural environmental conditions. If proven effective, SIT using thiotepa-sterilised males may be incorporated into an integrated programme of vector control to combat dengue in Cuba.Instituto Oswaldo Cruz, Ministério da Saúde2014-05-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762014000300365Memórias do Instituto Oswaldo Cruz v.109 n.3 2014reponame:Memórias do Instituto Oswaldo Cruzinstname:Fundação Oswaldo Cruzinstacron:FIOCRUZ10.1590/0074-0276130519info:eu-repo/semantics/openAccessGato,RenéLees,Rosemary SusanBruzon,Rosa YCompanioni,AriamysMenendez,ZulemaGonzález,AileenRodríguez,Misladyseng2020-04-25T17:51:51Zhttp://www.scielo.br/oai/scielo-oai.php0074-02761678-8060opendoar:null2020-04-26 02:20:03.634Memórias do Instituto Oswaldo Cruz - Fundação Oswaldo Cruztrue |
dc.title.none.fl_str_mv |
Large indoor cage study of the suppression of stable Aedes aegypti populations by the release of thiotepa-sterilised males |
title |
Large indoor cage study of the suppression of stable Aedes aegypti populations by the release of thiotepa-sterilised males |
spellingShingle |
Large indoor cage study of the suppression of stable Aedes aegypti populations by the release of thiotepa-sterilised males Gato,René Aedes aegypti chemosterilisation thiotepa sterile insect technique |
title_short |
Large indoor cage study of the suppression of stable Aedes aegypti populations by the release of thiotepa-sterilised males |
title_full |
Large indoor cage study of the suppression of stable Aedes aegypti populations by the release of thiotepa-sterilised males |
title_fullStr |
Large indoor cage study of the suppression of stable Aedes aegypti populations by the release of thiotepa-sterilised males |
title_full_unstemmed |
Large indoor cage study of the suppression of stable Aedes aegypti populations by the release of thiotepa-sterilised males |
title_sort |
Large indoor cage study of the suppression of stable Aedes aegypti populations by the release of thiotepa-sterilised males |
author |
Gato,René |
author_facet |
Gato,René Lees,Rosemary Susan Bruzon,Rosa Y Companioni,Ariamys Menendez,Zulema González,Aileen Rodríguez,Misladys |
author_role |
author |
author2 |
Lees,Rosemary Susan Bruzon,Rosa Y Companioni,Ariamys Menendez,Zulema González,Aileen Rodríguez,Misladys |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Gato,René Lees,Rosemary Susan Bruzon,Rosa Y Companioni,Ariamys Menendez,Zulema González,Aileen Rodríguez,Misladys |
dc.subject.por.fl_str_mv |
Aedes aegypti chemosterilisation thiotepa sterile insect technique |
topic |
Aedes aegypti chemosterilisation thiotepa sterile insect technique |
dc.description.none.fl_txt_mv |
The sterile insect technique (SIT) is a promising pest control method in terms of efficacy and environmental compatibility. In this study, we determined the efficacy of thiotepa-sterilised males in reducing the target Aedes aegypti populations. Treated male pupae were released weekly into large laboratory cages at a constant ratio of either 5:1 or 2:1 sterile-to-fertile males. A two-to-one release ratio reduced the hatch rate of eggs laid in the cage by approximately a third and reduced the adult catch rate by approximately a quarter, but a 5:1 release drove the population to elimination after 15 weeks of release. These results indicate that thiotepa exposure is an effective means of sterilising Ae. aegypti and males thus treated are able to reduce the reproductive capacity of a stable population under laboratory conditions. Further testing of the method in semi-field enclosures is required to evaluate the mating competitiveness of sterile males when exposed to natural environmental conditions. If proven effective, SIT using thiotepa-sterilised males may be incorporated into an integrated programme of vector control to combat dengue in Cuba. |
description |
The sterile insect technique (SIT) is a promising pest control method in terms of efficacy and environmental compatibility. In this study, we determined the efficacy of thiotepa-sterilised males in reducing the target Aedes aegypti populations. Treated male pupae were released weekly into large laboratory cages at a constant ratio of either 5:1 or 2:1 sterile-to-fertile males. A two-to-one release ratio reduced the hatch rate of eggs laid in the cage by approximately a third and reduced the adult catch rate by approximately a quarter, but a 5:1 release drove the population to elimination after 15 weeks of release. These results indicate that thiotepa exposure is an effective means of sterilising Ae. aegypti and males thus treated are able to reduce the reproductive capacity of a stable population under laboratory conditions. Further testing of the method in semi-field enclosures is required to evaluate the mating competitiveness of sterile males when exposed to natural environmental conditions. If proven effective, SIT using thiotepa-sterilised males may be incorporated into an integrated programme of vector control to combat dengue in Cuba. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-05-01 |
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://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762014000300365 |
url |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762014000300365 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/0074-0276130519 |
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 |
Instituto Oswaldo Cruz, Ministério da Saúde |
publisher.none.fl_str_mv |
Instituto Oswaldo Cruz, Ministério da Saúde |
dc.source.none.fl_str_mv |
Memórias do Instituto Oswaldo Cruz v.109 n.3 2014 reponame:Memórias do Instituto Oswaldo Cruz instname:Fundação Oswaldo Cruz instacron:FIOCRUZ |
reponame_str |
Memórias do Instituto Oswaldo Cruz |
collection |
Memórias do Instituto Oswaldo Cruz |
instname_str |
Fundação Oswaldo Cruz |
instacron_str |
FIOCRUZ |
institution |
FIOCRUZ |
repository.name.fl_str_mv |
Memórias do Instituto Oswaldo Cruz - Fundação Oswaldo Cruz |
repository.mail.fl_str_mv |
|
_version_ |
1669937717055586304 |