Diferentes densidades de Trichospilus diatreae (Hymenoptera: Eulophidae) e seu desenvolvimiento sobre pupas de Thyrinteina arnobia (Lepdoptera: Geometridae)
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dialnet.unirioja.es/servlet/articulo?codigo=3827412 http://hdl.handle.net/11449/5611 |
Resumo: | The control of defoliating caterpillars in eucalyptus forests via the application of chemical and biological insecticides is a complex issue, mainly due to the large size of plantations and the height of trees. Because of this complexity, alternate control methods have been proposed, such as biological control. Several factors should be taken into consideration for biological control programs to be successful, including density of natural enemies released. In this experiment we used 48-hour-old Thyrinteina arnobia pupae exposed to parasitism by 48-hour-old Trichospilus diatraeae females at the following parasitoid/host ratios, respectively: 1:1, 7:1, 14:1, 21:1, 28:1, and 35:1, with 15 replicates per treatment. Density was an important factor for T. diatraeae development, since parasitism rates of 33.3% were found at a density of 1 female per pupa, while no significant differences were found among parasitism rates for densities of 7, 14, 21, 28, and 35 females/pupa, with parasitism rates above 70 %. As to emergence, densities of 1:1 and 35:1 did not differ statistically, with low emergence rates. The 7:1 density had an intermediate performance, while densities of 14:1, 21:1, and 28:1 were the most effective, with emergence rates above 90%. With regard to the number of emerged parasitoids there was a positive intraspecific interference up to the 28:1 density. There was an increase in development period from egg-adult as the density of females per pupa increased. |
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Diferentes densidades de Trichospilus diatreae (Hymenoptera: Eulophidae) e seu desenvolvimiento sobre pupas de Thyrinteina arnobia (Lepdoptera: Geometridae)Trichospilus diatreae (Hymenoptera: Eulophidae) and its development on Thyrinteina arnobia pupa (Lepidoptera: Geometridae)The control of defoliating caterpillars in eucalyptus forests via the application of chemical and biological insecticides is a complex issue, mainly due to the large size of plantations and the height of trees. Because of this complexity, alternate control methods have been proposed, such as biological control. Several factors should be taken into consideration for biological control programs to be successful, including density of natural enemies released. In this experiment we used 48-hour-old Thyrinteina arnobia pupae exposed to parasitism by 48-hour-old Trichospilus diatraeae females at the following parasitoid/host ratios, respectively: 1:1, 7:1, 14:1, 21:1, 28:1, and 35:1, with 15 replicates per treatment. Density was an important factor for T. diatraeae development, since parasitism rates of 33.3% were found at a density of 1 female per pupa, while no significant differences were found among parasitism rates for densities of 7, 14, 21, 28, and 35 females/pupa, with parasitism rates above 70 %. As to emergence, densities of 1:1 and 35:1 did not differ statistically, with low emergence rates. The 7:1 density had an intermediate performance, while densities of 14:1, 21:1, and 28:1 were the most effective, with emergence rates above 90%. With regard to the number of emerged parasitoids there was a positive intraspecific interference up to the 28:1 density. There was an increase in development period from egg-adult as the density of females per pupa increased.FCA/UNESP de Botucatu-Departamento de Producao Vegetal/Defesa Fitossanitaria, Caixa Postal 237, CEP: 18610-307, Botucatu, SP, SpainFCA/UNESP de Botucatu-Departamento de Producao Vegetal/Defesa Fitossanitaria, Caixa Postal 237, CEP: 18610-307, Botucatu, SP, SpainUniversidade Estadual Paulista (Unesp)Zaché, Bruno [UNESP]Zaché, R. R. da Costa [UNESP]Wilcken, Carlos Frederico2014-05-20T13:20:15Z2014-05-20T13:20:15Z2011-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article187-193http://dialnet.unirioja.es/servlet/articulo?codigo=3827412Boletin de Sanidad Vegetal Plagas. , v. 37, n. 2, p. 187-193, 2011.0213-6910http://hdl.handle.net/11449/5611ZOOREC:ZOOR14805032265Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporBoletin de Sanidad Vegetal Plagasinfo:eu-repo/semantics/openAccess2024-04-09T15:43:25Zoai:repositorio.unesp.br:11449/5611Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T22:50:02.122446Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Diferentes densidades de Trichospilus diatreae (Hymenoptera: Eulophidae) e seu desenvolvimiento sobre pupas de Thyrinteina arnobia (Lepdoptera: Geometridae) Trichospilus diatreae (Hymenoptera: Eulophidae) and its development on Thyrinteina arnobia pupa (Lepidoptera: Geometridae) |
title |
Diferentes densidades de Trichospilus diatreae (Hymenoptera: Eulophidae) e seu desenvolvimiento sobre pupas de Thyrinteina arnobia (Lepdoptera: Geometridae) |
spellingShingle |
Diferentes densidades de Trichospilus diatreae (Hymenoptera: Eulophidae) e seu desenvolvimiento sobre pupas de Thyrinteina arnobia (Lepdoptera: Geometridae) Zaché, Bruno [UNESP] |
title_short |
Diferentes densidades de Trichospilus diatreae (Hymenoptera: Eulophidae) e seu desenvolvimiento sobre pupas de Thyrinteina arnobia (Lepdoptera: Geometridae) |
title_full |
Diferentes densidades de Trichospilus diatreae (Hymenoptera: Eulophidae) e seu desenvolvimiento sobre pupas de Thyrinteina arnobia (Lepdoptera: Geometridae) |
title_fullStr |
Diferentes densidades de Trichospilus diatreae (Hymenoptera: Eulophidae) e seu desenvolvimiento sobre pupas de Thyrinteina arnobia (Lepdoptera: Geometridae) |
title_full_unstemmed |
Diferentes densidades de Trichospilus diatreae (Hymenoptera: Eulophidae) e seu desenvolvimiento sobre pupas de Thyrinteina arnobia (Lepdoptera: Geometridae) |
title_sort |
Diferentes densidades de Trichospilus diatreae (Hymenoptera: Eulophidae) e seu desenvolvimiento sobre pupas de Thyrinteina arnobia (Lepdoptera: Geometridae) |
author |
Zaché, Bruno [UNESP] |
author_facet |
Zaché, Bruno [UNESP] Zaché, R. R. da Costa [UNESP] Wilcken, Carlos Frederico |
author_role |
author |
author2 |
Zaché, R. R. da Costa [UNESP] Wilcken, Carlos Frederico |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Zaché, Bruno [UNESP] Zaché, R. R. da Costa [UNESP] Wilcken, Carlos Frederico |
description |
The control of defoliating caterpillars in eucalyptus forests via the application of chemical and biological insecticides is a complex issue, mainly due to the large size of plantations and the height of trees. Because of this complexity, alternate control methods have been proposed, such as biological control. Several factors should be taken into consideration for biological control programs to be successful, including density of natural enemies released. In this experiment we used 48-hour-old Thyrinteina arnobia pupae exposed to parasitism by 48-hour-old Trichospilus diatraeae females at the following parasitoid/host ratios, respectively: 1:1, 7:1, 14:1, 21:1, 28:1, and 35:1, with 15 replicates per treatment. Density was an important factor for T. diatraeae development, since parasitism rates of 33.3% were found at a density of 1 female per pupa, while no significant differences were found among parasitism rates for densities of 7, 14, 21, 28, and 35 females/pupa, with parasitism rates above 70 %. As to emergence, densities of 1:1 and 35:1 did not differ statistically, with low emergence rates. The 7:1 density had an intermediate performance, while densities of 14:1, 21:1, and 28:1 were the most effective, with emergence rates above 90%. With regard to the number of emerged parasitoids there was a positive intraspecific interference up to the 28:1 density. There was an increase in development period from egg-adult as the density of females per pupa increased. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-01-01 2014-05-20T13:20:15Z 2014-05-20T13:20:15Z |
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 |
http://dialnet.unirioja.es/servlet/articulo?codigo=3827412 Boletin de Sanidad Vegetal Plagas. , v. 37, n. 2, p. 187-193, 2011. 0213-6910 http://hdl.handle.net/11449/5611 ZOOREC:ZOOR14805032265 |
url |
http://dialnet.unirioja.es/servlet/articulo?codigo=3827412 http://hdl.handle.net/11449/5611 |
identifier_str_mv |
Boletin de Sanidad Vegetal Plagas. , v. 37, n. 2, p. 187-193, 2011. 0213-6910 ZOOREC:ZOOR14805032265 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
Boletin de Sanidad Vegetal Plagas |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
187-193 |
dc.source.none.fl_str_mv |
Web of Science 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) |
repository.mail.fl_str_mv |
|
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1808129467109867520 |