Efeitos de três análogos do hormônio juvenil aplicados em bicho-da-seda, Bombyx mori L. (Lepidoptera: Bombycidae)

Detalhes bibliográficos
Autor(a) principal: Miranda, José E. [UNESP]
Data de Publicação: 2002
Outros Autores: De Bortoli, Sérgio A. [UNESP], Takahashi, Roque [UNESP]
Tipo de documento: Artigo
Idioma: por
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://hdl.handle.net/11449/225289
Resumo: Juvenile hormone analogues (JHA) have been tested as growth regulators of Bombyx mori L., aiming to increase the cocoon production. These chemicals, when applied in appropriate doses, promote prolongation of the larval period. The effects of JHA application may vary with the product, strain, and time of application. The objective of this study was to evaluate the topical application in different times of three JHA and their effects on larval growth and silk production of the Brazilian silkworm strain C115xN108. Pyriproxyfen, methoprene and fenoxycarb were applied on silkworm larvae at 24h, 48h, 72h or 96h after the beginning of the fifth instar (HFI) and the effects of the products on larval and adult biological characters and silk production were evaluated. Independently of the time of application, the three products affected all the evaluated parameters. The nutrients stored during the extended period by the treated insects were used for growing the silk glands and were converted in corporal weight, with consequent increments in the silk production. Applications of piryproxyfen, methoprene and fenoxycarb between 48 and 72 HFI promoted, in a general way, the largest increments in the biomass and cocoon production of B. mori. Variations in the time of application between 24 and 96 HFI did not influence adult emergence, oviposition or the egg viability of B. mori.
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spelling Efeitos de três análogos do hormônio juvenil aplicados em bicho-da-seda, Bombyx mori L. (Lepidoptera: Bombycidae)Effects of three juvenile hormone analogues applied on the silkworm, Bombyx mori L. (Lepidoptera: Bombycidae)Cocoon productionFenoxycarbInsect growth regulatorsMethoprenePyriproxyfenJuvenile hormone analogues (JHA) have been tested as growth regulators of Bombyx mori L., aiming to increase the cocoon production. These chemicals, when applied in appropriate doses, promote prolongation of the larval period. The effects of JHA application may vary with the product, strain, and time of application. The objective of this study was to evaluate the topical application in different times of three JHA and their effects on larval growth and silk production of the Brazilian silkworm strain C115xN108. Pyriproxyfen, methoprene and fenoxycarb were applied on silkworm larvae at 24h, 48h, 72h or 96h after the beginning of the fifth instar (HFI) and the effects of the products on larval and adult biological characters and silk production were evaluated. Independently of the time of application, the three products affected all the evaluated parameters. The nutrients stored during the extended period by the treated insects were used for growing the silk glands and were converted in corporal weight, with consequent increments in the silk production. Applications of piryproxyfen, methoprene and fenoxycarb between 48 and 72 HFI promoted, in a general way, the largest increments in the biomass and cocoon production of B. mori. Variations in the time of application between 24 and 96 HFI did not influence adult emergence, oviposition or the egg viability of B. mori.Depto. Fitossanidade Faculdade de Ciências Agrárias e Veterinárias Universidade Estadual Paulista, Via de acesso Prof. Paulo D. Castellane, s/n, 14884-900, Jaboticabal, SPDepto. Fitossanidade Faculdade de Ciências Agrárias e Veterinárias Universidade Estadual Paulista, Via de acesso Prof. Paulo D. Castellane, s/n, 14884-900, Jaboticabal, SPUniversidade Estadual Paulista (UNESP)Miranda, José E. [UNESP]De Bortoli, Sérgio A. [UNESP]Takahashi, Roque [UNESP]2022-04-28T20:44:02Z2022-04-28T20:44:02Z2002-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article19-25Neotropical Entomology, v. 31, n. 1, p. 19-25, 2002.1519-556Xhttp://hdl.handle.net/11449/2252892-s2.0-52649164206Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporNeotropical Entomologyinfo:eu-repo/semantics/openAccess2024-06-06T15:50:55Zoai:repositorio.unesp.br:11449/225289Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T20:11:02.837008Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Efeitos de três análogos do hormônio juvenil aplicados em bicho-da-seda, Bombyx mori L. (Lepidoptera: Bombycidae)
Effects of three juvenile hormone analogues applied on the silkworm, Bombyx mori L. (Lepidoptera: Bombycidae)
title Efeitos de três análogos do hormônio juvenil aplicados em bicho-da-seda, Bombyx mori L. (Lepidoptera: Bombycidae)
spellingShingle Efeitos de três análogos do hormônio juvenil aplicados em bicho-da-seda, Bombyx mori L. (Lepidoptera: Bombycidae)
Miranda, José E. [UNESP]
Cocoon production
Fenoxycarb
Insect growth regulators
Methoprene
Pyriproxyfen
title_short Efeitos de três análogos do hormônio juvenil aplicados em bicho-da-seda, Bombyx mori L. (Lepidoptera: Bombycidae)
title_full Efeitos de três análogos do hormônio juvenil aplicados em bicho-da-seda, Bombyx mori L. (Lepidoptera: Bombycidae)
title_fullStr Efeitos de três análogos do hormônio juvenil aplicados em bicho-da-seda, Bombyx mori L. (Lepidoptera: Bombycidae)
title_full_unstemmed Efeitos de três análogos do hormônio juvenil aplicados em bicho-da-seda, Bombyx mori L. (Lepidoptera: Bombycidae)
title_sort Efeitos de três análogos do hormônio juvenil aplicados em bicho-da-seda, Bombyx mori L. (Lepidoptera: Bombycidae)
author Miranda, José E. [UNESP]
author_facet Miranda, José E. [UNESP]
De Bortoli, Sérgio A. [UNESP]
Takahashi, Roque [UNESP]
author_role author
author2 De Bortoli, Sérgio A. [UNESP]
Takahashi, Roque [UNESP]
author2_role author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (UNESP)
dc.contributor.author.fl_str_mv Miranda, José E. [UNESP]
De Bortoli, Sérgio A. [UNESP]
Takahashi, Roque [UNESP]
dc.subject.por.fl_str_mv Cocoon production
Fenoxycarb
Insect growth regulators
Methoprene
Pyriproxyfen
topic Cocoon production
Fenoxycarb
Insect growth regulators
Methoprene
Pyriproxyfen
description Juvenile hormone analogues (JHA) have been tested as growth regulators of Bombyx mori L., aiming to increase the cocoon production. These chemicals, when applied in appropriate doses, promote prolongation of the larval period. The effects of JHA application may vary with the product, strain, and time of application. The objective of this study was to evaluate the topical application in different times of three JHA and their effects on larval growth and silk production of the Brazilian silkworm strain C115xN108. Pyriproxyfen, methoprene and fenoxycarb were applied on silkworm larvae at 24h, 48h, 72h or 96h after the beginning of the fifth instar (HFI) and the effects of the products on larval and adult biological characters and silk production were evaluated. Independently of the time of application, the three products affected all the evaluated parameters. The nutrients stored during the extended period by the treated insects were used for growing the silk glands and were converted in corporal weight, with consequent increments in the silk production. Applications of piryproxyfen, methoprene and fenoxycarb between 48 and 72 HFI promoted, in a general way, the largest increments in the biomass and cocoon production of B. mori. Variations in the time of application between 24 and 96 HFI did not influence adult emergence, oviposition or the egg viability of B. mori.
publishDate 2002
dc.date.none.fl_str_mv 2002-12-01
2022-04-28T20:44:02Z
2022-04-28T20:44:02Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv Neotropical Entomology, v. 31, n. 1, p. 19-25, 2002.
1519-556X
http://hdl.handle.net/11449/225289
2-s2.0-52649164206
identifier_str_mv Neotropical Entomology, v. 31, n. 1, p. 19-25, 2002.
1519-556X
2-s2.0-52649164206
url http://hdl.handle.net/11449/225289
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv Neotropical Entomology
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 19-25
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
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