Toxicidade de inseticidas neonicotinoides sobre abelhas Apis mellifera L. (africanizadas)
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Biblioteca Digital de Teses e Dissertações da UFERSA |
Texto Completo: | https://repositorio.ufersa.edu.br/handle/tede/568 |
Resumo: | Honey bees play an important role in both economic and environmental part. However, in recent years there has been observed a decline in the worldwide bee colonies, causing concern among researchers and beekeepers. Exposure to pesticides can cause serious problems for bees and pollination services. Therefore, it is extremely important to determine the toxicity of insecticides, which are used for pest control. The aim of this study was to determine the toxicity of the products (Actara® 250 WG - Thiamethoxam); (Evidence® 700WG - Imidacloprido1); (Orfeu® 200WG - Acetamiprid); (Focus® 500WG - Clothianidin) and (Nuprid® 700WG Imidacloprido2) on Apis mellifera, for it was evaluated some toxicological endpoints, such as lethal time (LT50) topical and oral lethal dose (LD50) topical and lethal concentration (LC50) by intake, and to determine the hazard ratio (HQ). For that bees were exposed to insecticides in different concentrations and mortality data submitted to analysis of survival and logit regression. Independent of all tested insecticides exposure caused the death of 100% of the bees with the TL50, ranging from 0.68 to 3.85h for topical exposure, and exposure for 4.2h at 0.64 with respect to CL50 and DL50, the Thiamethoxam , Imidacloprido1, Acetamiprid, Clothianidin, and Imidacloprido2, presented their values for LD50, 7.5, 38, 57, 131, 10.5 ng / bees and LC50, 5.56, 24.4, 278, 50.8, 6,8 ng.μl-1 . As for the risk coefficient (HQ) all regardless of culture or pest insecticides had a higher HQ to 50, ranging from 157.7 (Acetamiprid used in cotton for control of Aphis gossypii) to 66666.7 (thiamethoxam used in breakfast control Leucoptera coffeella and Dysmicoccus texensis), showing the highest level of danger of these pesticides to bees |
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Message, DejairGodoy, Maurício Sekiguchi dehttp://lattes.cnpq.br/2559789369754261Gonçalves, Lionel Seguihttp://lattes.cnpq.br/087341687946655307368770458http://lattes.cnpq.br/2606465844665396http://lattes.cnpq.br/8428919083422600Soares, Jefferson Bruno Carvalho2017-03-10T12:54:12Z2016-02-16SOARES, Jefferson Bruno Carvalho. Toxicidade de inseticidas neonicotinoides sobre abelhas Apis mellifera L. (africanizadas). 2016. 51 f. Dissertação (Mestrado) - Curso de Pós-graduação em Ciência Animal, Universidade Federal Rural do Semi-Árido, Mossoró, 2016.https://repositorio.ufersa.edu.br/handle/tede/568Honey bees play an important role in both economic and environmental part. However, in recent years there has been observed a decline in the worldwide bee colonies, causing concern among researchers and beekeepers. Exposure to pesticides can cause serious problems for bees and pollination services. Therefore, it is extremely important to determine the toxicity of insecticides, which are used for pest control. The aim of this study was to determine the toxicity of the products (Actara® 250 WG - Thiamethoxam); (Evidence® 700WG - Imidacloprido1); (Orfeu® 200WG - Acetamiprid); (Focus® 500WG - Clothianidin) and (Nuprid® 700WG Imidacloprido2) on Apis mellifera, for it was evaluated some toxicological endpoints, such as lethal time (LT50) topical and oral lethal dose (LD50) topical and lethal concentration (LC50) by intake, and to determine the hazard ratio (HQ). For that bees were exposed to insecticides in different concentrations and mortality data submitted to analysis of survival and logit regression. Independent of all tested insecticides exposure caused the death of 100% of the bees with the TL50, ranging from 0.68 to 3.85h for topical exposure, and exposure for 4.2h at 0.64 with respect to CL50 and DL50, the Thiamethoxam , Imidacloprido1, Acetamiprid, Clothianidin, and Imidacloprido2, presented their values for LD50, 7.5, 38, 57, 131, 10.5 ng / bees and LC50, 5.56, 24.4, 278, 50.8, 6,8 ng.μl-1 . As for the risk coefficient (HQ) all regardless of culture or pest insecticides had a higher HQ to 50, ranging from 157.7 (Acetamiprid used in cotton for control of Aphis gossypii) to 66666.7 (thiamethoxam used in breakfast control Leucoptera coffeella and Dysmicoccus texensis), showing the highest level of danger of these pesticides to beesAs abelhas melíferas apresentam um importante papel tanto na parte econômica como ambiental. Entretanto, nos últimos anos tem sido observado um declínio em nível mundial das colônias de abelhas, causando preocupação entre pesquisadores e apicultores. A exposição aos agrotóxicos pode acarretar sérios problemas para as abelhas e aos serviços de polinização. Nesse sentido, é de extrema importância determinar a toxicidade de inseticidas que são utilizados para o controle de pragas. O objetivo desse trabalho foi determinar a toxicidade dos produtos (Actara® 250 WG – Tiametoxam); (Evidence® 700WG – Imidacloprido1); (Nuprid® 700WG Imidacloprido2); (Orfeu® 200WG – Acetamiprido) e (Focus® 500WG – Clotianidina) sobre abelhas Apis mellifera, tendo sido avaliados alguns parâmetros toxicológicos, como Tempo Letal (TL50) para a aplicação tópica e oral, Dose letal (DL50) para aplicação tópica e Concentração letal (CL50) por ingestão, além de determinar o coeficiente de periculosidade (HQ). Para isso abelhas foram expostas aos inseticidas em diferentes concentrações e os dados de mortalidade submetidos às análises de sobrevivência e regressão Logit. Independente da forma de exposição todos os inseticidas testados ocasionaram a morte de 100% das abelhas, com a TL50, variando entre 0.68 a 3.85h para exposição tópica e 0.64 a 4.2h para exposição oral. Para a DL50 e CL50, o tiametoxam, Imidacloprido1, imidacloprido2, acetamiprido, e o clotianidina apresentaram os respectivos valores para as DL50, 7.5, 38, 57, 131, 10.5 ng/abelhas e CL50, de 5.56, 24.4, 278, 50.8, 6,8 ng.μl-1 respectivamente. Quanto ao Coeficiente de Risco (HQ) todos os inseticidas independente da cultura ou praga apresentaram um HQ maior que 50, variando de 157,7 (acetamiprido utilizado no algodão para o controle do Aphis gossypii) a 66.666,7 (tiametoxam utilizado no café para o controle da Leucoptera coffeella e Dysmicoccus texensis), mostrando o altíssimo nível de periculosidade destes inseticidas para as abelhasCoordenação de Aperfeiçoamento de Pessoal de Nível Superior2017-03-10application/pdfhttp://repositorio.ufersa.edu.br/retrieve/1283/JeffersonBCS_DISSERT.pdf.jpgporUniversidade Federal Rural do Semi-ÁridoPrograma de Pós-Graduação em Ciência AnimalUFERSABrasilCC-BY-SAinfo:eu-repo/semantics/openAccessDL50CL50TL50Coeficiente de Risco (HQ)PesticidasDL50CL50TL50Coeficiente de Risco (HQ)PesticidsCNPQ::CIENCIAS AGRARIAS::MEDICINA VETERINARIAToxicidade de inseticidas neonicotinoides sobre abelhas Apis mellifera L. (africanizadas)Toxicity of neonicotinoid insecticides on bees Apis mellifera L. 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dc.title.por.fl_str_mv |
Toxicidade de inseticidas neonicotinoides sobre abelhas Apis mellifera L. (africanizadas) |
dc.title.alternative.por.fl_str_mv |
Toxicity of neonicotinoid insecticides on bees Apis mellifera L. (africanized bees) |
title |
Toxicidade de inseticidas neonicotinoides sobre abelhas Apis mellifera L. (africanizadas) |
spellingShingle |
Toxicidade de inseticidas neonicotinoides sobre abelhas Apis mellifera L. (africanizadas) Soares, Jefferson Bruno Carvalho DL50 CL50 TL50 Coeficiente de Risco (HQ) Pesticidas DL50 CL50 TL50 Coeficiente de Risco (HQ) Pesticids CNPQ::CIENCIAS AGRARIAS::MEDICINA VETERINARIA |
title_short |
Toxicidade de inseticidas neonicotinoides sobre abelhas Apis mellifera L. (africanizadas) |
title_full |
Toxicidade de inseticidas neonicotinoides sobre abelhas Apis mellifera L. (africanizadas) |
title_fullStr |
Toxicidade de inseticidas neonicotinoides sobre abelhas Apis mellifera L. (africanizadas) |
title_full_unstemmed |
Toxicidade de inseticidas neonicotinoides sobre abelhas Apis mellifera L. (africanizadas) |
title_sort |
Toxicidade de inseticidas neonicotinoides sobre abelhas Apis mellifera L. (africanizadas) |
author |
Soares, Jefferson Bruno Carvalho |
author_facet |
Soares, Jefferson Bruno Carvalho |
author_role |
author |
dc.contributor.authorID.por.fl_str_mv |
07368770458 |
dc.contributor.authorLattes.por.fl_str_mv |
http://lattes.cnpq.br/2606465844665396 |
dc.contributor.advisorLattes.por.fl_str_mv |
http://lattes.cnpq.br/8428919083422600 |
dc.contributor.advisor1.fl_str_mv |
Message, Dejair |
dc.contributor.referee1.fl_str_mv |
Godoy, Maurício Sekiguchi de |
dc.contributor.referee1Lattes.fl_str_mv |
http://lattes.cnpq.br/2559789369754261 |
dc.contributor.referee2.fl_str_mv |
Gonçalves, Lionel Segui |
dc.contributor.referee2Lattes.fl_str_mv |
http://lattes.cnpq.br/0873416879466553 |
dc.contributor.author.fl_str_mv |
Soares, Jefferson Bruno Carvalho |
contributor_str_mv |
Message, Dejair Godoy, Maurício Sekiguchi de Gonçalves, Lionel Segui |
dc.subject.por.fl_str_mv |
DL50 CL50 TL50 Coeficiente de Risco (HQ) Pesticidas DL50 CL50 TL50 Coeficiente de Risco (HQ) Pesticids |
topic |
DL50 CL50 TL50 Coeficiente de Risco (HQ) Pesticidas DL50 CL50 TL50 Coeficiente de Risco (HQ) Pesticids CNPQ::CIENCIAS AGRARIAS::MEDICINA VETERINARIA |
dc.subject.cnpq.fl_str_mv |
CNPQ::CIENCIAS AGRARIAS::MEDICINA VETERINARIA |
description |
Honey bees play an important role in both economic and environmental part. However, in recent years there has been observed a decline in the worldwide bee colonies, causing concern among researchers and beekeepers. Exposure to pesticides can cause serious problems for bees and pollination services. Therefore, it is extremely important to determine the toxicity of insecticides, which are used for pest control. The aim of this study was to determine the toxicity of the products (Actara® 250 WG - Thiamethoxam); (Evidence® 700WG - Imidacloprido1); (Orfeu® 200WG - Acetamiprid); (Focus® 500WG - Clothianidin) and (Nuprid® 700WG Imidacloprido2) on Apis mellifera, for it was evaluated some toxicological endpoints, such as lethal time (LT50) topical and oral lethal dose (LD50) topical and lethal concentration (LC50) by intake, and to determine the hazard ratio (HQ). For that bees were exposed to insecticides in different concentrations and mortality data submitted to analysis of survival and logit regression. Independent of all tested insecticides exposure caused the death of 100% of the bees with the TL50, ranging from 0.68 to 3.85h for topical exposure, and exposure for 4.2h at 0.64 with respect to CL50 and DL50, the Thiamethoxam , Imidacloprido1, Acetamiprid, Clothianidin, and Imidacloprido2, presented their values for LD50, 7.5, 38, 57, 131, 10.5 ng / bees and LC50, 5.56, 24.4, 278, 50.8, 6,8 ng.μl-1 . As for the risk coefficient (HQ) all regardless of culture or pest insecticides had a higher HQ to 50, ranging from 157.7 (Acetamiprid used in cotton for control of Aphis gossypii) to 66666.7 (thiamethoxam used in breakfast control Leucoptera coffeella and Dysmicoccus texensis), showing the highest level of danger of these pesticides to bees |
publishDate |
2016 |
dc.date.issued.fl_str_mv |
2016-02-16 |
dc.date.accessioned.fl_str_mv |
2017-03-10T12:54:12Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
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masterThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
SOARES, Jefferson Bruno Carvalho. Toxicidade de inseticidas neonicotinoides sobre abelhas Apis mellifera L. (africanizadas). 2016. 51 f. Dissertação (Mestrado) - Curso de Pós-graduação em Ciência Animal, Universidade Federal Rural do Semi-Árido, Mossoró, 2016. |
dc.identifier.uri.fl_str_mv |
https://repositorio.ufersa.edu.br/handle/tede/568 |
identifier_str_mv |
SOARES, Jefferson Bruno Carvalho. Toxicidade de inseticidas neonicotinoides sobre abelhas Apis mellifera L. (africanizadas). 2016. 51 f. Dissertação (Mestrado) - Curso de Pós-graduação em Ciência Animal, Universidade Federal Rural do Semi-Árido, Mossoró, 2016. |
url |
https://repositorio.ufersa.edu.br/handle/tede/568 |
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por |
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por |
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CC-BY-SA info:eu-repo/semantics/openAccess |
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CC-BY-SA |
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openAccess |
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Universidade Federal Rural do Semi-Árido |
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Programa de Pós-Graduação em Ciência Animal |
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UFERSA |
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Brasil |
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Universidade Federal Rural do Semi-Árido |
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