Effects of parasitoid and host age on the parasitism of Trichogramma pretiosum on eggs of Anticarsia gemmatalis
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista brasileira de entomologia (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262020000200201 |
Resumo: | Abstract The ages of parasitoid females and their hosts can have substantial effects on parasitism and parasitoid efficacy. This relationship has been investigated over the last few decades and found to vary among species. To our knowledge, it was virtually unknown for Trichogramma pretiosum wasps that parasitize Anticarsia gemmatalis eggs. Therefore, the influence of parasitoid and host age on the parasitism of T. pretiosum on eggs of A. gemmatalis was here evaluated in three independent bioassays. Neither the number of parasitized eggs nor that of emerged parasitoids differed between T. pretiosum females of different age. The number of parasitoids per egg and the sex ratio were higher for 5-day-old females. Regarding host age, the number of parasitized eggs was highest for A. gemmatalis eggs aged 24 h (9.60), followed by eggs aged 48 h (1.00), while no parasitism was observed for eggs aged 72 h. The number of parasitoids per egg and sex ratio were not influenced by host age. Preference was significantly higher for host eggs aged 24 h (79.67%), followed by eggs aged 48 h (16.99%) and 72 h (3.33%). Accordingly to these results, the key challenge for a successful T. pretiosum release to control A. gemmatalis in the field is to synchronize the presence of up to 5-day-old adults with the most susceptible phase of the host eggs (1 day). |
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Effects of parasitoid and host age on the parasitism of Trichogramma pretiosum on eggs of Anticarsia gemmatalisLepidoptera-pestbiological controlegg parasitoidembryonic developmentAbstract The ages of parasitoid females and their hosts can have substantial effects on parasitism and parasitoid efficacy. This relationship has been investigated over the last few decades and found to vary among species. To our knowledge, it was virtually unknown for Trichogramma pretiosum wasps that parasitize Anticarsia gemmatalis eggs. Therefore, the influence of parasitoid and host age on the parasitism of T. pretiosum on eggs of A. gemmatalis was here evaluated in three independent bioassays. Neither the number of parasitized eggs nor that of emerged parasitoids differed between T. pretiosum females of different age. The number of parasitoids per egg and the sex ratio were higher for 5-day-old females. Regarding host age, the number of parasitized eggs was highest for A. gemmatalis eggs aged 24 h (9.60), followed by eggs aged 48 h (1.00), while no parasitism was observed for eggs aged 72 h. The number of parasitoids per egg and sex ratio were not influenced by host age. Preference was significantly higher for host eggs aged 24 h (79.67%), followed by eggs aged 48 h (16.99%) and 72 h (3.33%). Accordingly to these results, the key challenge for a successful T. pretiosum release to control A. gemmatalis in the field is to synchronize the presence of up to 5-day-old adults with the most susceptible phase of the host eggs (1 day).Sociedade Brasileira De Entomologia2020-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262020000200201Revista Brasileira de Entomologia v.64 n.2 2020reponame:Revista brasileira de entomologia (Online)instname:Sociedade Brasileira De Entomologia (SBE)instacron:SBE10.1590/1806-9665-rbent-2019-105info:eu-repo/semantics/openAccessQueiroz,Ana Paula deCosta,Cintia OliveiraFavetti,Bruna MagdaSilva,Gabriela VieiraBueno,Adeney de Freitaseng2020-04-07T00:00:00Zoai:scielo:S0085-56262020000200201Revistahttp://www.rbentomologia.com/https://old.scielo.br/oai/scielo-oai.php||sbe@ufpr.br1806-96650085-5626opendoar:2020-04-07T00:00Revista brasileira de entomologia (Online) - Sociedade Brasileira De Entomologia (SBE)false |
dc.title.none.fl_str_mv |
Effects of parasitoid and host age on the parasitism of Trichogramma pretiosum on eggs of Anticarsia gemmatalis |
title |
Effects of parasitoid and host age on the parasitism of Trichogramma pretiosum on eggs of Anticarsia gemmatalis |
spellingShingle |
Effects of parasitoid and host age on the parasitism of Trichogramma pretiosum on eggs of Anticarsia gemmatalis Queiroz,Ana Paula de Lepidoptera-pest biological control egg parasitoid embryonic development |
title_short |
Effects of parasitoid and host age on the parasitism of Trichogramma pretiosum on eggs of Anticarsia gemmatalis |
title_full |
Effects of parasitoid and host age on the parasitism of Trichogramma pretiosum on eggs of Anticarsia gemmatalis |
title_fullStr |
Effects of parasitoid and host age on the parasitism of Trichogramma pretiosum on eggs of Anticarsia gemmatalis |
title_full_unstemmed |
Effects of parasitoid and host age on the parasitism of Trichogramma pretiosum on eggs of Anticarsia gemmatalis |
title_sort |
Effects of parasitoid and host age on the parasitism of Trichogramma pretiosum on eggs of Anticarsia gemmatalis |
author |
Queiroz,Ana Paula de |
author_facet |
Queiroz,Ana Paula de Costa,Cintia Oliveira Favetti,Bruna Magda Silva,Gabriela Vieira Bueno,Adeney de Freitas |
author_role |
author |
author2 |
Costa,Cintia Oliveira Favetti,Bruna Magda Silva,Gabriela Vieira Bueno,Adeney de Freitas |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Queiroz,Ana Paula de Costa,Cintia Oliveira Favetti,Bruna Magda Silva,Gabriela Vieira Bueno,Adeney de Freitas |
dc.subject.por.fl_str_mv |
Lepidoptera-pest biological control egg parasitoid embryonic development |
topic |
Lepidoptera-pest biological control egg parasitoid embryonic development |
description |
Abstract The ages of parasitoid females and their hosts can have substantial effects on parasitism and parasitoid efficacy. This relationship has been investigated over the last few decades and found to vary among species. To our knowledge, it was virtually unknown for Trichogramma pretiosum wasps that parasitize Anticarsia gemmatalis eggs. Therefore, the influence of parasitoid and host age on the parasitism of T. pretiosum on eggs of A. gemmatalis was here evaluated in three independent bioassays. Neither the number of parasitized eggs nor that of emerged parasitoids differed between T. pretiosum females of different age. The number of parasitoids per egg and the sex ratio were higher for 5-day-old females. Regarding host age, the number of parasitized eggs was highest for A. gemmatalis eggs aged 24 h (9.60), followed by eggs aged 48 h (1.00), while no parasitism was observed for eggs aged 72 h. The number of parasitoids per egg and sex ratio were not influenced by host age. Preference was significantly higher for host eggs aged 24 h (79.67%), followed by eggs aged 48 h (16.99%) and 72 h (3.33%). Accordingly to these results, the key challenge for a successful T. pretiosum release to control A. gemmatalis in the field is to synchronize the presence of up to 5-day-old adults with the most susceptible phase of the host eggs (1 day). |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262020000200201 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262020000200201 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1806-9665-rbent-2019-105 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira De Entomologia |
publisher.none.fl_str_mv |
Sociedade Brasileira De Entomologia |
dc.source.none.fl_str_mv |
Revista Brasileira de Entomologia v.64 n.2 2020 reponame:Revista brasileira de entomologia (Online) instname:Sociedade Brasileira De Entomologia (SBE) instacron:SBE |
instname_str |
Sociedade Brasileira De Entomologia (SBE) |
instacron_str |
SBE |
institution |
SBE |
reponame_str |
Revista brasileira de entomologia (Online) |
collection |
Revista brasileira de entomologia (Online) |
repository.name.fl_str_mv |
Revista brasileira de entomologia (Online) - Sociedade Brasileira De Entomologia (SBE) |
repository.mail.fl_str_mv |
||sbe@ufpr.br |
_version_ |
1752126461173563392 |