Lippia gracilis e seus compostos majoritários: efeitos na sobrevivência, biologia e comportamento de Euschistus heros
Ano de defesa: | 2023 |
---|---|
Autor(a) principal: | |
Orientador(a): | |
Banca de defesa: | |
Tipo de documento: | Tese |
Tipo de acesso: | Acesso aberto |
Idioma: | por |
Instituição de defesa: |
Não Informado pela instituição
|
Programa de Pós-Graduação: |
Pós-Graduação em Agricultura e Biodiversidade
|
Departamento: |
Não Informado pela instituição
|
País: |
Não Informado pela instituição
|
Palavras-chave em Português: | |
Palavras-chave em Inglês: | |
Área do conhecimento CNPq: | |
Link de acesso: | https://ri.ufs.br/jspui/handle/riufs/18671 |
Resumo: | Euschitus heros (Hemiptera: Pentatomidade) is one of the most prominent phytophagous insects found in soybean areas. Its importance lies in the direct damage it causes to the plant pods, reducing seed viability, grain quality, and oil yield. The brown stink bug also leads to a physiological imbalance known as “crazy soybean”, which hinders grain harvest. The primary control method has been the use of synthetic insecticides, including neonicotinoids such as imidacloprid. Although this molecule is widely used for stink bug management, control failures in soybean growing areas have been reported, likely due to issues related to resistance. To discover new insecticidal molecules, the present study evaluated the effects of sublethal doses of essential oils from Lippia gracilis accessions, of the major compounds of Lippia gracilis – thymol and carvacrol, and of the commercial insecticide imidacloprid on the survival and on the biological, demographic, and behavioral parameters of the brown stink bug in soybean. In the first chapter, we evaluated the effect of a sublethal concentration of the essential oils of the L. gracillis chemotypes thymol and carvacrol, of their respective major compounds, and of imidacloprid on the development, reproduction, and demographic parameters of the insect. Among the treatments assessed, the major compound thymol and the commercial insecticide were most toxic to third-instar nymphs. Additionally, this major compound significantly reduced the nymphal stage, the number of nymphs, and egg viability, whereas the synthetic insecticide maintained the same viability as the control. Furthermore, thymol affected the life table parameters of the insect, reducing the intrinsic growth rate and the finite rate of increase, as well as extending the doubling time and average generation time. In the second chapter, we evaluated the effects of the treatments on behavior. In general, the essential oils and the major compounds caused irritability in nymphs and adults. Furthermore, changes in behavior patterns were observed; thymol reduced the average speed and distance traveled, while increasing angular speed and meandering behavior. The insecticide effects were similar to those of the control. In nymphs, all the oils and the major compounds increased the frequency of cleaning. For adults, only essential oils interfered with this process. |
id |
UFS-2_3a527999c48cbfc955245d459171b793 |
---|---|
oai_identifier_str |
oai:ufs.br:riufs/18671 |
network_acronym_str |
UFS-2 |
network_name_str |
Repositório Institucional da UFS |
repository_id_str |
|
spelling |
Tavares, Swamy Rocha Siqueira AbreuBacci, Leandro2023-11-16T17:11:44Z2023-11-16T17:11:44Z2023-08-25TAVARES, Swamy Rocha Siqueira Abreu. Lippia gracilis e seus compostos majoritários: efeitos na sobrevivência, biologia e comportamento de Euschistus heros. 2023. 85 f. Tese (Doutorado em Agricultura e Biodiversidade) - Universidade Federal de Sergipe, São Cristóvão, 2023.https://ri.ufs.br/jspui/handle/riufs/18671Euschitus heros (Hemiptera: Pentatomidade) is one of the most prominent phytophagous insects found in soybean areas. Its importance lies in the direct damage it causes to the plant pods, reducing seed viability, grain quality, and oil yield. The brown stink bug also leads to a physiological imbalance known as “crazy soybean”, which hinders grain harvest. The primary control method has been the use of synthetic insecticides, including neonicotinoids such as imidacloprid. Although this molecule is widely used for stink bug management, control failures in soybean growing areas have been reported, likely due to issues related to resistance. To discover new insecticidal molecules, the present study evaluated the effects of sublethal doses of essential oils from Lippia gracilis accessions, of the major compounds of Lippia gracilis – thymol and carvacrol, and of the commercial insecticide imidacloprid on the survival and on the biological, demographic, and behavioral parameters of the brown stink bug in soybean. In the first chapter, we evaluated the effect of a sublethal concentration of the essential oils of the L. gracillis chemotypes thymol and carvacrol, of their respective major compounds, and of imidacloprid on the development, reproduction, and demographic parameters of the insect. Among the treatments assessed, the major compound thymol and the commercial insecticide were most toxic to third-instar nymphs. Additionally, this major compound significantly reduced the nymphal stage, the number of nymphs, and egg viability, whereas the synthetic insecticide maintained the same viability as the control. Furthermore, thymol affected the life table parameters of the insect, reducing the intrinsic growth rate and the finite rate of increase, as well as extending the doubling time and average generation time. In the second chapter, we evaluated the effects of the treatments on behavior. In general, the essential oils and the major compounds caused irritability in nymphs and adults. Furthermore, changes in behavior patterns were observed; thymol reduced the average speed and distance traveled, while increasing angular speed and meandering behavior. The insecticide effects were similar to those of the control. In nymphs, all the oils and the major compounds increased the frequency of cleaning. For adults, only essential oils interfered with this process.Euschitus heros (Hemiptera:Pentatomidade) é um dos fitófagos mais expressivos encontrados em áreas de soja. Sua importância remete aos danos diretos ocasionados nas vagens das plantas, reduzindo a viabilidade das sementes, viabilidade dos grãos e o rendimento de óleo. O percevejo também ocasiona um desequilíbrio fisiológico conhecido como ‘soja louca’, que dificulta a colheita dos grãos. Atualmente, a principal medida empregada para seu controle é o uso de inseticidas sintéticos, incluindo os neonicotinoides como o imidacloprido; essa molécula é amplamente difundia para o seu manejo, embora falhas de controle em áreas de cultivo sejam relatadas. Isso se deve, provavelmente, a problemas relacionados à resistência. Como forma de encontrar novas moléculas inseticidas, o presente estudo avaliou os efeitos de doses subletais de óleos essenciais de acessos de Lippia gracilis, dos seus compostos majoritários timol e carvacrol, e do inseticida comercial imidacloprido na sobrevivência, nos parâmetros biológicos, demográficos e comportamentais do percevejo-marrom-da-soja. No primeiro capítulo, foi avaliado o efeito de uma concentração subletal dos óleos de L. gracillis quimiotipo timol e carvacrol, seus respectivos majoritários e imidacloprido no desenvolvimento, reprodução e nos parâmetros demográficos do percevejo. Entre os tratamentos avaliados, o composto majoritário timol e o inseticida comercial foram mais tóxicos para as ninfas de terceiro instar. Além disso, o timol reduziu significativamente o estágio ninfal, a quantidade de ninfas e a viabilidade dos ovos, enquanto o inseticida sintético manteve a mesma viabilidade do grupo controle. O timol também afetou os parâmetros da tabela de vida, reduzindo a taxa intrínseca de crescimento e a razão finita de aumento, além de aumentar o tempo necessário para a duplicação e o tempo médio de geração. No segundo capítulo, avaliamos os efeitos dos tratamentos no comportamento. De maneira geral, os óleos essenciais e seus compostos majoritários causaram irritabilidade nas ninfas e adultos do percevejo. Além disso, foram observadas alterações nos padrões de comportamento, onde o timol reduziu a velocidade média e a distância percorrida, aumentando a velocidade angular e os meandros. O inseticida manteve um comportamento similar ao grupo controle. A quantidade de autolimpeza também foi influenciada pelos tratamentos: em ninfas, todos os óleos e compostos majoritários aumentaram a quantidade de limpezas, enquanto que em adultos, apenas os óleos essenciais interferiram nesse processo.Conselho Nacional de Pesquisa e Desenvolvimento Científico e Tecnológico - CNPqSão CristóvãoporAgriculturaPragasEssência e óleos essenciaisToxicologiaInseticidasLippia gracilisEcotoxicologiaEfeitos subletaisParâmetros demográficosAutogroomingEcotoxicologyEssential oilsSublethal effectsDemographic parametersGroomingCIENCIAS AGRARIASLippia gracilis e seus compostos majoritários: efeitos na sobrevivência, biologia e comportamento de Euschistus herosLippia gracilis and its major compounds: effects on survival, biology, and behavior of Euschistus herosinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisPós-Graduação em Agricultura e BiodiversidadeUniversidade Federal de Sergipe (UFS)reponame:Repositório Institucional da UFSinstname:Universidade Federal de Sergipe (UFS)instacron:UFSinfo:eu-repo/semantics/openAccessLICENSElicense.txtlicense.txttext/plain; charset=utf-81475https://ri.ufs.br/jspui/bitstream/riufs/18671/1/license.txt098cbbf65c2c15e1fb2e49c5d306a44cMD51ORIGINALSWAMY_ROCHA_SIQUEIRA_ABREU_TAVARES.pdfSWAMY_ROCHA_SIQUEIRA_ABREU_TAVARES.pdfapplication/pdf2102518https://ri.ufs.br/jspui/bitstream/riufs/18671/2/SWAMY_ROCHA_SIQUEIRA_ABREU_TAVARES.pdf7ae11dc164011cbe62e4c1423c741f9bMD52riufs/186712023-11-16 14:11:50.026oai:ufs.br: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Repositório InstitucionalPUBhttps://ri.ufs.br/oai/requestrepositorio@academico.ufs.bropendoar:2023-11-16T17:11:50Repositório Institucional da UFS - Universidade Federal de Sergipe (UFS)false |
dc.title.pt_BR.fl_str_mv |
Lippia gracilis e seus compostos majoritários: efeitos na sobrevivência, biologia e comportamento de Euschistus heros |
dc.title.alternative.eng.fl_str_mv |
Lippia gracilis and its major compounds: effects on survival, biology, and behavior of Euschistus heros |
title |
Lippia gracilis e seus compostos majoritários: efeitos na sobrevivência, biologia e comportamento de Euschistus heros |
spellingShingle |
Lippia gracilis e seus compostos majoritários: efeitos na sobrevivência, biologia e comportamento de Euschistus heros Tavares, Swamy Rocha Siqueira Abreu Agricultura Pragas Essência e óleos essenciais Toxicologia Inseticidas Lippia gracilis Ecotoxicologia Efeitos subletais Parâmetros demográficos Autogrooming Ecotoxicology Essential oils Sublethal effects Demographic parameters Grooming CIENCIAS AGRARIAS |
title_short |
Lippia gracilis e seus compostos majoritários: efeitos na sobrevivência, biologia e comportamento de Euschistus heros |
title_full |
Lippia gracilis e seus compostos majoritários: efeitos na sobrevivência, biologia e comportamento de Euschistus heros |
title_fullStr |
Lippia gracilis e seus compostos majoritários: efeitos na sobrevivência, biologia e comportamento de Euschistus heros |
title_full_unstemmed |
Lippia gracilis e seus compostos majoritários: efeitos na sobrevivência, biologia e comportamento de Euschistus heros |
title_sort |
Lippia gracilis e seus compostos majoritários: efeitos na sobrevivência, biologia e comportamento de Euschistus heros |
author |
Tavares, Swamy Rocha Siqueira Abreu |
author_facet |
Tavares, Swamy Rocha Siqueira Abreu |
author_role |
author |
dc.contributor.author.fl_str_mv |
Tavares, Swamy Rocha Siqueira Abreu |
dc.contributor.advisor1.fl_str_mv |
Bacci, Leandro |
contributor_str_mv |
Bacci, Leandro |
dc.subject.por.fl_str_mv |
Agricultura Pragas Essência e óleos essenciais Toxicologia Inseticidas Lippia gracilis Ecotoxicologia Efeitos subletais Parâmetros demográficos |
topic |
Agricultura Pragas Essência e óleos essenciais Toxicologia Inseticidas Lippia gracilis Ecotoxicologia Efeitos subletais Parâmetros demográficos Autogrooming Ecotoxicology Essential oils Sublethal effects Demographic parameters Grooming CIENCIAS AGRARIAS |
dc.subject.eng.fl_str_mv |
Autogrooming Ecotoxicology Essential oils Sublethal effects Demographic parameters Grooming |
dc.subject.cnpq.fl_str_mv |
CIENCIAS AGRARIAS |
description |
Euschitus heros (Hemiptera: Pentatomidade) is one of the most prominent phytophagous insects found in soybean areas. Its importance lies in the direct damage it causes to the plant pods, reducing seed viability, grain quality, and oil yield. The brown stink bug also leads to a physiological imbalance known as “crazy soybean”, which hinders grain harvest. The primary control method has been the use of synthetic insecticides, including neonicotinoids such as imidacloprid. Although this molecule is widely used for stink bug management, control failures in soybean growing areas have been reported, likely due to issues related to resistance. To discover new insecticidal molecules, the present study evaluated the effects of sublethal doses of essential oils from Lippia gracilis accessions, of the major compounds of Lippia gracilis – thymol and carvacrol, and of the commercial insecticide imidacloprid on the survival and on the biological, demographic, and behavioral parameters of the brown stink bug in soybean. In the first chapter, we evaluated the effect of a sublethal concentration of the essential oils of the L. gracillis chemotypes thymol and carvacrol, of their respective major compounds, and of imidacloprid on the development, reproduction, and demographic parameters of the insect. Among the treatments assessed, the major compound thymol and the commercial insecticide were most toxic to third-instar nymphs. Additionally, this major compound significantly reduced the nymphal stage, the number of nymphs, and egg viability, whereas the synthetic insecticide maintained the same viability as the control. Furthermore, thymol affected the life table parameters of the insect, reducing the intrinsic growth rate and the finite rate of increase, as well as extending the doubling time and average generation time. In the second chapter, we evaluated the effects of the treatments on behavior. In general, the essential oils and the major compounds caused irritability in nymphs and adults. Furthermore, changes in behavior patterns were observed; thymol reduced the average speed and distance traveled, while increasing angular speed and meandering behavior. The insecticide effects were similar to those of the control. In nymphs, all the oils and the major compounds increased the frequency of cleaning. For adults, only essential oils interfered with this process. |
publishDate |
2023 |
dc.date.accessioned.fl_str_mv |
2023-11-16T17:11:44Z |
dc.date.available.fl_str_mv |
2023-11-16T17:11:44Z |
dc.date.issued.fl_str_mv |
2023-08-25 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/doctoralThesis |
format |
doctoralThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
TAVARES, Swamy Rocha Siqueira Abreu. Lippia gracilis e seus compostos majoritários: efeitos na sobrevivência, biologia e comportamento de Euschistus heros. 2023. 85 f. Tese (Doutorado em Agricultura e Biodiversidade) - Universidade Federal de Sergipe, São Cristóvão, 2023. |
dc.identifier.uri.fl_str_mv |
https://ri.ufs.br/jspui/handle/riufs/18671 |
identifier_str_mv |
TAVARES, Swamy Rocha Siqueira Abreu. Lippia gracilis e seus compostos majoritários: efeitos na sobrevivência, biologia e comportamento de Euschistus heros. 2023. 85 f. Tese (Doutorado em Agricultura e Biodiversidade) - Universidade Federal de Sergipe, São Cristóvão, 2023. |
url |
https://ri.ufs.br/jspui/handle/riufs/18671 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.program.fl_str_mv |
Pós-Graduação em Agricultura e Biodiversidade |
dc.publisher.initials.fl_str_mv |
Universidade Federal de Sergipe (UFS) |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da UFS instname:Universidade Federal de Sergipe (UFS) instacron:UFS |
instname_str |
Universidade Federal de Sergipe (UFS) |
instacron_str |
UFS |
institution |
UFS |
reponame_str |
Repositório Institucional da UFS |
collection |
Repositório Institucional da UFS |
bitstream.url.fl_str_mv |
https://ri.ufs.br/jspui/bitstream/riufs/18671/1/license.txt https://ri.ufs.br/jspui/bitstream/riufs/18671/2/SWAMY_ROCHA_SIQUEIRA_ABREU_TAVARES.pdf |
bitstream.checksum.fl_str_mv |
098cbbf65c2c15e1fb2e49c5d306a44c 7ae11dc164011cbe62e4c1423c741f9b |
bitstream.checksumAlgorithm.fl_str_mv |
MD5 MD5 |
repository.name.fl_str_mv |
Repositório Institucional da UFS - Universidade Federal de Sergipe (UFS) |
repository.mail.fl_str_mv |
repositorio@academico.ufs.br |
_version_ |
1793351068888858624 |