Repellent activity of Cnidoscolus phyllacanthus Mart. and Ricinus communis L. extracts against Aedes aegypti L. oviposition behavior
Main Author: | |
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Publication Date: | 2015 |
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Format: | Article |
Language: | eng |
Source: | Biotemas (Online) |
Download full: | https://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2015v28n4p105 |
Summary: | Female Aedes aegypti lay their eggs on nearly any moist substrate. Methods with potential to repel oviposition may reduce infestation, thereby contributing to control of epidemics. We evaluated the influence of Cnidoscolus phyllacanthus and Ricinus communis plant extracts on the oviposition behavior of A. aegypti. Lethal concentrations were first determined in experiments with larvae after 24 h of exposure, after which LC50 and LC90 were used to test oviposition repellency. The experiment consisted of an oviposition preference test based multiple-choice and no-choice assays. The Oviposition Activity Indices (OAIs) from the multiple-choice test using both R. communis and C. phyllacanthus were negative, suggesting oviposition repellent and deterrent activity. The LC90 of both plant extracts deterred oviposition by this vector, as demonstrated by an OAI = value of -1. In the choice study, mean oviposition values were significantly different between R. communis and C. phyllacanthus. In the absence of choice, mosquitoes laid eggs independent of the substrate. In conclusion, our OAI values indicate that all substrates used repelled oviposition by A. aegypti. |
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Repellent activity of Cnidoscolus phyllacanthus Mart. and Ricinus communis L. extracts against Aedes aegypti L. oviposition behaviorAtividade repelente de extratos de Cnidoscolus phyllacanthus Mart. e Ricinus communis L. sobre o comportamento de oviposição de Aedes aegypti LFemale Aedes aegypti lay their eggs on nearly any moist substrate. Methods with potential to repel oviposition may reduce infestation, thereby contributing to control of epidemics. We evaluated the influence of Cnidoscolus phyllacanthus and Ricinus communis plant extracts on the oviposition behavior of A. aegypti. Lethal concentrations were first determined in experiments with larvae after 24 h of exposure, after which LC50 and LC90 were used to test oviposition repellency. The experiment consisted of an oviposition preference test based multiple-choice and no-choice assays. The Oviposition Activity Indices (OAIs) from the multiple-choice test using both R. communis and C. phyllacanthus were negative, suggesting oviposition repellent and deterrent activity. The LC90 of both plant extracts deterred oviposition by this vector, as demonstrated by an OAI = value of -1. In the choice study, mean oviposition values were significantly different between R. communis and C. phyllacanthus. In the absence of choice, mosquitoes laid eggs independent of the substrate. In conclusion, our OAI values indicate that all substrates used repelled oviposition by A. aegypti. Fêmeas de Aedes aegypti põem seus ovos em qualquer lugar úmido e com acúmulo de água. Métodos alternativos com potencial de repelência à oviposição de insetos reduz a infestação contribuindo para controlar epidemias. Avaliou-se a inluência de extratos de Cnidoscolus phyllacanthus e Ricinus communis sobre o comportamento de oviposição de A. aegypti. A repelência a oviposição foi avaliada a partir das concentrações letais CL50 e CL90 obtidas no teste com larvas deste vetor após 24 horas de exposição. O teste de preferência para oviposição de A. aegypti foi baseado em duas situações: teste de múltipla escolha e teste sem chance de escolha. Os resultados do Índice de Atividade de Oviposição (IAO) para o teste de múltipla escolha, para ambos R. communis e C. phyllacanthus, foram negativos. A CL90 de R. communis e C. phyllacanthus apresentaram atividade repelente de oviposição, sendo confirmado pelo IAO = -1. Diferença significativa entre as médias dos tratamentos foi verificado no teste com escolha tanto para R. communis quanto para C. phyllacanthus. No teste sem chance de escolha, os mosquitos ovipositaram independente do tipo de substrato. A partir dos valores de IAO, todos os produtos apresentaram ação repelente à oviposição de A. aegypti.Universidade Federal de Santa Catarina2015-09-23info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2015v28n4p10510.5007/2175-7925.2015v28n4p105Biotemas; v. 28 n. 4 (2015); 105-1122175-79250103-1643reponame:Biotemas (Online)instname:Universidade Federal de Santa Catarina (UFSC)instacron:UFSCenghttps://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2015v28n4p105/30391Copyright (c) 2015 Lafayette Pereira Candido, Eduardo Barbosa Beserrainfo:eu-repo/semantics/openAccessCandido, Lafayette PereiraBeserra, Eduardo Barbosa2017-10-19T15:59:50Zoai:periodicos.ufsc.br:article/35872Revistahttp://www.biotemas.ufsc.br/index.htmPUBhttps://periodicos.ufsc.br/index.php/biotemas/oai||carlospinto@ccb.ufsc.br2175-79250103-1643opendoar:2017-10-19T15:59:50Biotemas (Online) - Universidade Federal de Santa Catarina (UFSC)false |
dc.title.none.fl_str_mv |
Repellent activity of Cnidoscolus phyllacanthus Mart. and Ricinus communis L. extracts against Aedes aegypti L. oviposition behavior Atividade repelente de extratos de Cnidoscolus phyllacanthus Mart. e Ricinus communis L. sobre o comportamento de oviposição de Aedes aegypti L |
title |
Repellent activity of Cnidoscolus phyllacanthus Mart. and Ricinus communis L. extracts against Aedes aegypti L. oviposition behavior |
spellingShingle |
Repellent activity of Cnidoscolus phyllacanthus Mart. and Ricinus communis L. extracts against Aedes aegypti L. oviposition behavior Candido, Lafayette Pereira |
title_short |
Repellent activity of Cnidoscolus phyllacanthus Mart. and Ricinus communis L. extracts against Aedes aegypti L. oviposition behavior |
title_full |
Repellent activity of Cnidoscolus phyllacanthus Mart. and Ricinus communis L. extracts against Aedes aegypti L. oviposition behavior |
title_fullStr |
Repellent activity of Cnidoscolus phyllacanthus Mart. and Ricinus communis L. extracts against Aedes aegypti L. oviposition behavior |
title_full_unstemmed |
Repellent activity of Cnidoscolus phyllacanthus Mart. and Ricinus communis L. extracts against Aedes aegypti L. oviposition behavior |
title_sort |
Repellent activity of Cnidoscolus phyllacanthus Mart. and Ricinus communis L. extracts against Aedes aegypti L. oviposition behavior |
author |
Candido, Lafayette Pereira |
author_facet |
Candido, Lafayette Pereira Beserra, Eduardo Barbosa |
author_role |
author |
author2 |
Beserra, Eduardo Barbosa |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Candido, Lafayette Pereira Beserra, Eduardo Barbosa |
description |
Female Aedes aegypti lay their eggs on nearly any moist substrate. Methods with potential to repel oviposition may reduce infestation, thereby contributing to control of epidemics. We evaluated the influence of Cnidoscolus phyllacanthus and Ricinus communis plant extracts on the oviposition behavior of A. aegypti. Lethal concentrations were first determined in experiments with larvae after 24 h of exposure, after which LC50 and LC90 were used to test oviposition repellency. The experiment consisted of an oviposition preference test based multiple-choice and no-choice assays. The Oviposition Activity Indices (OAIs) from the multiple-choice test using both R. communis and C. phyllacanthus were negative, suggesting oviposition repellent and deterrent activity. The LC90 of both plant extracts deterred oviposition by this vector, as demonstrated by an OAI = value of -1. In the choice study, mean oviposition values were significantly different between R. communis and C. phyllacanthus. In the absence of choice, mosquitoes laid eggs independent of the substrate. In conclusion, our OAI values indicate that all substrates used repelled oviposition by A. aegypti. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-09-23 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2015v28n4p105 10.5007/2175-7925.2015v28n4p105 |
url |
https://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2015v28n4p105 |
identifier_str_mv |
10.5007/2175-7925.2015v28n4p105 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2015v28n4p105/30391 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2015 Lafayette Pereira Candido, Eduardo Barbosa Beserra info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2015 Lafayette Pereira Candido, Eduardo Barbosa Beserra |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal de Santa Catarina |
publisher.none.fl_str_mv |
Universidade Federal de Santa Catarina |
dc.source.none.fl_str_mv |
Biotemas; v. 28 n. 4 (2015); 105-112 2175-7925 0103-1643 reponame:Biotemas (Online) instname:Universidade Federal de Santa Catarina (UFSC) instacron:UFSC |
instname_str |
Universidade Federal de Santa Catarina (UFSC) |
instacron_str |
UFSC |
institution |
UFSC |
reponame_str |
Biotemas (Online) |
collection |
Biotemas (Online) |
repository.name.fl_str_mv |
Biotemas (Online) - Universidade Federal de Santa Catarina (UFSC) |
repository.mail.fl_str_mv |
||carlospinto@ccb.ufsc.br |
_version_ |
1789434716412182528 |